Need a 5th Gear

[Dr_Snooz]

My Red Car threw its 5th gear last week. Obviously there aren't any available anywhere. Does anyone have a gear or interchange info or something? It makes me sad when the Red Car is sad. :( :( :(

[conozo]

I'll keep an eye out for one.

I am curious did your gear go out because of low fluid?

[ShiRen]

I know you also had the crunch when entering 5th... dont make me nervous

[Dr_Snooz]

I'll keep an eye out for one.

I am curious did your gear go out because of low fluid?



I appreciate it. Thank you.

I about low fluid too. I'm pretty sure it wasn't low though. It didn't leak and l checked the level only a few weeks ago.

You may remember my terrible travails getting my MT swap done. The first MT was a scrapper from the junkyard that l lovingly cleaned and rebuilt. It repaid my kindness by blowing up within 300 miles. I think the shafts were bent. I then went through another 5 or so scrappers looking for something worth rebuilding. Sadly, it was all garbage. l finally bought this one from mantrans.com. It worked well when I got it, but has developed a lot of problems in the 60k miles since. Fifth gear has gone out, obviously, but first gear takes some effort to get into sometimes and the gear mesh is all pretty sloppy. There's some weirdness to the clutch operation that has me spooked too. It's like the engagement point keeps moving around. Not sure what's going on there.

Still, I don't blame mantrans. It's a wonder they were able to provide me a working trans at all. I know that the core I sent them was an unsalvageable mess of broken gears and shafts.

Aren't MT's supposed to be tougher than AT's?


I know you also had the crunch when entering 5th... dont make me nervous

Funny thing, the crunch went away the week before this happened. I'll just say that if you start hearing what sounds like an alternator whine, you have about 50 miles left.

[ShiRen]

I keep telling myself Ill pop the 5th gear cover off one day and give it a health check

[Oldblueaccord]

Usually you can take out the 5th clusters and still drive the car I believe. Ole 4 speed should be good for about 115 mph.

[conozo]

I've been think of how this can happen. I'm starting to think that your tranny was not assembled correctly from mantrans. There are a few parts that you can actually put in the wrong way. It will work but it allows the shafts to not engage all the way.

I'm partially saying this because when my brother in law rebuilt the tranny, this happened. It might have been as simple as when he put the case on the workbench he didn't realize that the input shaft sticks out further than the case

[Oldblueaccord]

I've been think of how this can happen. I'm starting to think that your tranny was not assembled correctly from mantrans. There are a few parts that you can actually put in the wrong way. It will work but it allows the shafts to not engage all the way.

I'm partially saying this because when my brother in law rebuilt the tranny, this happened. It might have been as simple as when he put the case on the workbench he didn't realize that the input shaft sticks out further than the case

Diving habits also play a part. Lugging the car under 45 mph in 5th killed all those early trans the OD gear was small and cant handle the torque. All the makes in the 80's had this problem.

I dont use 5th under 50 mph in my car and esp up long hills. If your right foot is to the floor in 5th you need to be in 4th your just burning gas and straining you drive train.

Even in my Camaro where the gearing is a little weird and 5th is pretty short gear im in 4th alot in city driving and Im never in 6th,hell Id have to look at the shifter to see where 6th is.

[ShiRen]

I disassembled my trans before it started doing it... Don't think I reassembled it wrong, the only thing I know I did wrong was fight the case on it instead of reading the part in the manual that says to put it in 3rd... yeah that helps a lot.

[bscanlan]

Wow Snooz! I just searched “gear swap” to see what my 5th gear options were. I got a scrapper for my hatch project, and the trans shop who was going over it (I never cracked it open) said 5th was pretty bad. I’d be willing to find something else that works, but in my searches I have not seen this 5th as being used in other transmissions. Has anyone heard of someone doing something different, rather than trying to find an original 5th?

[Dr_Snooz]

I'm hoping someone can provide that answer. It sucks that the entire gear fails and not some replaceable part like a syncro or bearing. Then again, I'm glad it isn't the mainshaft that fails.

[Oldblueaccord]

I'm hoping someone can provide that answer. It sucks that the entire gear fails and not some replaceable part like a syncro or bearing. Then again, I'm glad it isn't the mainshaft that fails.

You dont think some guy put veggie oil in it as a test years ago....asking for a friend.

[Dr_Snooz]

https://th.bing.com/th/id/Rf9bb7d3e88ef205a8d41ae7aecd518c9?rik=FA5PdHfNaMml hA&riu=http%3a%2f%2fi1.kym-cdn.com%2fentries%2ficons%2ffacebook%2f000%2f011%2 f786%2fhomer-simpson-doh.jpg&ehk=ikFthR3bgWaigL7inVrvcSzzKcy0H3NxbE1p3SM406s%3d&risl=&pid=ImgRaw

[Dr_Snooz]

I need to inspect that 5th gear though. If it's no good, then I can throw that trans in the trash and go buy a salvage S-Type.

[conozo]

Would you inspect that 5th gear already! Your killin' me smalls!

[conozo]

by the way Azian Garage mentions another 5th gear probably from the prelude will swap over. He mentions it in one of these videos.

A20 Transmission Disassembly Part 1 of 2 - YouTube (https://youtu.be/g-0waj1I1nM)

A20 Transmission Assembly Part 2 of 2 - YouTube (https://youtu.be/En4rFLe2oS4)

[Oldblueaccord]

I probably should look at mine too.

I wonder what the cost be to remake the gears?

[stat1K]

So take this with a grain of salt but one of you could order this from amazon and see if it's the right part, Amazon.com: Genuine Honda 23461-PC8-J21 Countershaft Gear, Fifth: Automotive (https://www.amazon.com/Genuine-Honda-23461-PC8-J21-Countershaft-Fifth/dp/B00N5SUJFK)

I found the part number from the diagram and searched it in google, https://www.hondapartsnow.com/genuine/honda~gear~countershaft~fifth~23461-pc8-j21.html

might be worth a try.

[Dr_Snooz]

Would you inspect that 5th gear already! Your killin' me smalls!

I'm sorry! Buckle up 'cause here come the pics.

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Freaking Microsoft! Their OneDrive won't generate the embed code right now for some stupid reason. My kingdom for a reliable photo hoster!!!! This is what I get for talking up OneDrive in that other thread.

I'll post them later in my build thread "My Hoopty." For now, just know that I cracked the trans open last night and it's beautiful inside. Super clean and lots of life left in it at only 168k miles. Fifth gear is dreamy. BOTH fifth gears (there are 2 apparently) are dreamy, though I can see the weakness in how the splines mate. Kinda rounded and mushy. If you're heavy on the gas in 5th gear, I guess you can wear them off. Ugh. What an unfortunate design flaw. I'm tempted simply to drop this thing in without a rebuild but I probably won't. It's worth replacing the syncros at least.

I really want to crack open the ManTrans unit also and see what kind of job they did. As I've said before, I was just glad to have a working trans, but it still feels like I should have got more then 60k miles out of it.

I'm headed to the trans shop Friday. I have to pre-pay for the rebuild kit because they have to build it out of individual parts. No one makes a kit anymore, I guess.



So take this with a grain of salt but one of you could order this from amazon and see if it's the right part, Amazon.com: Genuine Honda 23461-PC8-J21 Countershaft Gear, Fifth: Automotive (https://www.amazon.com/Genuine-Honda-23461-PC8-J21-Countershaft-Fifth/dp/B00N5SUJFK)

I found the part number from the diagram and searched it in google, 23461-PC8-J21 - Genuine Honda Gear, Countershaft Fifth (https://www.hondapartsnow.com/genuine/honda~gear~countershaft~fifth~23461-pc8-j21.html)

might be worth a try.

Does it give anyone else the creeps that there aren't any photos of the actual item? :ugh:

[Oldblueaccord]

yur /fired

[Havoc_Wolfy]

got exactly what you need right here. "transmission parts warehouse" stocks it. i recently ordered several parts from them for my rebuild.

heres the link to the 5th gear assembly. HONDA A2 & ACURA CG TRANSMISSION 5TH GEAR KIT 36T/25T FITS '''85-'''89 (HON-5) - Transmission Parts Distributors (https://www.transmissionpartsdistributors.com/honda-a2-acura-cg-transmission-5th-gear-kit-36t-25t-fits-85-89-hon-5/)

they do stock all the other parts needed for rebuilding. in both a kit and separately

[stat1K]

82 isn't bad for the set like that either. nice find!

oh and snooz, i've bought various seals i couldn't get from the dealer from amazon with just the part number and both the front main and rear main i've ordered for my 05 were the correct part.

[Oldblueaccord]

got exactly what you need right here. "transmission parts warehouse" stocks it. i recently ordered several parts from them for my rebuild.

heres the link to the 5th gear assembly. HONDA A2 & ACURA CG TRANSMISSION 5TH GEAR KIT 36T/25T FITS '''85-'''89 (HON-5) - Transmission Parts Distributors (https://www.transmissionpartsdistributors.com/honda-a2-acura-cg-transmission-5th-gear-kit-36t-25t-fits-85-89-hon-5/)

they do stock all the other parts needed for rebuilding. in both a kit and separately

Thats a great find!

Did you order a 5th gear set from them I am wondering how well its made. Those bearings they show in there rebuild kits are very poorly made Chinese bearings. I just got done throwing out a boat load of NTN bearings at work.

[Dr_Snooz]

$82 for TWO working transmissions??? So I can have a spare on-hand. Hmmmm...

[Dr_Snooz]

Okay, I promised pics, and by gosh, you're gonna get pics!

https://dsm01pap001files.storage.live.com/y4mqFsBGP5Jjz1IPr8ZQnwlco90ciXHE0SpgfMnIbBKbPZhtRt JmATNlJwHpKyB_nXJovH8O841T2EdlqvfvjsXSXKyffy9l6dhT HuChiDCQZtAQ4Yb2azTUpOXro3NUNo5U-PFGV4zM6oASOOIqfItNhCdbOxug4cq6QAlXp1hVLdyrvqAUkjY ZAWqfq_vpZAG?width=4032&height=3024&cropmode=none

Donor trans leaking vital fluids.


https://dsm01pap001files.storage.live.com/y4miTMkoqK1dpoYHRz86vTCIBh0UdXYWt0auY6n14IY4S6q9cA W4nh4IqVrxi0R7Tp63Gyn3V8bUPIN2ZN3GAdSBpK7Rnxg7gzDP oHDcM2pmDOKXdtbcCkf82EiJ3ol9jDfrOJ0eDuw1gQRTnB_C2Y QvrDc-l0oeQGJxumq5G1pgWk1erpy60XA9ubWEi03Dy_8?width=4032&height=3024&cropmode=none

Cover off.


https://dsm01pap001files.storage.live.com/y4mxDuEIgDXUJUTaY9gnPfZ53pKsNcjL4tEUUcgrmGc8jHKntz b0nmlbEdjxyhqPmM9l7TKTMVPkTj5ip3rcLWv08pI7v0CaXOt8 XwMHZJjDx6hugMkoNYwb3aYLblpaEeNbR2_XC8pcq08b1GCRrS xpxrHlp4idIMdxKsA7EfccuoVSScuJH0Z4bm8F7g9sh2Y?widt h=4032&height=3024&cropmode=none

Looks clean.


https://dsm01pap001files.storage.live.com/y4muwdmFOs2MFozH6PwA0vXu6UM_LnOcFWAeFBVEeslsx86iMJ idlxm7_7fQmL6OgA8H_DGp759E0W1MsAdimmbzUGnX1VRQuWda m1EO7lNMN0SL_GUT9HDhWHshBSaTnbow3xXf7pGzEDuSItjVuy nfZoe1gqcGNEHVfw5MviaNZYAhVwNwfwq2HnG6F5VAUJt?widt h=4032&height=3024&cropmode=none


https://dsm01pap001files.storage.live.com/y4mc671MIlfCOZJXKPaTgVa2zxiA61eJIudJnONKMmHLgMuBF0 orHGx3m4yivVKwqT_EI_1isLECqo5CCRp9ZqqHt0p3lZG-ZQz97PtQb30CtiYJ_K_sipvzME3u93uRApK84-c_GNkkL8TPpTYWX_BIL8jyENBI5QEiWcVKpyEV4Ow-F_Pq7jwm237jqVMoqK8?width=4032&height=3024&cropmode=none

Not new gears, but still lots of life left. I suspect this trans will have a lot less herky-jerky than the one I'm driving.


https://dsm01pap001files.storage.live.com/y4mtVadex_pjjpMpW_smqfWi5qtKLTYVdNceiBVOYQ0YsmGA4v ZgKGvo0K4M245IzzN5FD8guMe62CXnIKo2Ko1eyZX1x0O_SX6s uPv123T4KkVUycBZxIhIJFdeqbK7NF1qmz4E4Z1ucH89i-PrmB9b0HGzm8pTH994Hw5rOBT1jrrJZimYNdO7x-yii7bkcRO?width=4032&height=3024&cropmode=none


https://dsm01pap001files.storage.live.com/y4mDBBWrRouKkJFKLQpBzhOPVPqkkDwgI0zahsW3Sha6eutTTE SKit25a3DmKUthPrZg3g6rr7GpdjwQ0nwA_CIDNyFIFLZk6pdS D80iDJ9jfHBlAikSjiSgrhPAednfcnVTTog5RVFg1CoXxDnCyH BERRqRnGTVOGsAQVLZb_LluD3EpnAh3fkXT6BUGnu0p9i?widt h=4032&height=3024&cropmode=none


https://dsm01pap001files.storage.live.com/y4mXmFf9ZJ8b1mTPbOMCaIShhmj7Zwyl3EqAnDM6sr01w8h9p6 74Q_zn_j7JAYzBsekhZIHdQtfZAG156pAOONDwd9VoPBkEhIv2 2HR0bduYP09vGqghYCfKr-dCr2N5fvOXn_qbKVZbONATSsPQHnG9IO6snVmkXag6NhKK3fcN Ul5ZHqLr1A6H2xmJAN2KWvN?width=3024&height=4032&cropmode=none

I did some reading around the forum to see if anyone could say what exactly fails on these 5th gears. I guess what happens is that the splines inside the gear shear off. I didn't find any pics, but I'll get some if I have the presence of mind to take them. You can kinda see the spline mating in these photos. It's certainly not confidence inspiring.


https://dsm01pap001files.storage.live.com/y4mtn-2Tul-tuF_09Tqyy8Hc2Bchdg1FmzkZGQ1uYCxjfsvS8WMaPGlJzgGNB XfqOwJM5lP0_vnUXgw1tP1Yf6MlnGGxh_xX0w6j8HNGXtBCWOi yQbxz3meQyYdKQb8a4ZF1IKThW6o6Q40HloKxeYRC-Mheczf3aPYByzgjohUtHV0DJZOyJW_ItGeMVIeXohk?width=3 024&height=4032&cropmode=none

[Dr_Snooz]

https://dsm01pap001files.storage.live.com/y4mUoHYDtDu4pA21VeCBSD1UCBn30AD66yg31jrAiCvujOPrny _vXE51WWrYz2TGHrUtQw2iGPXpC-BYP1KG79qg-E7CUMxqNwVSSEQ-5o_tk1OBCzug6G7S8Gco611g5kiI2XuO2ASxCVbYR-i3Epjn7-MRiVNJBTnVBgo7OHDQcA2RxLk2JfAaqlV3425WCkU?width=40 32&height=3024&cropmode=none

Condition of the splines on the shaft looks fine. Even the blurry syncros look good. Again, I'm tempted to stuff it in without a rebuild.


https://dsm01pap001files.storage.live.com/y4mfqZvM5F3mo3AK1LEykCmxhzwIfYTZ_i42S4QlxEQXVfcXRG 27nP9j_wocbhwrAz5CImUQRr1rjlNSK4U0tOmP52vjXwJj76Hy 1IWAILWxMlLmVOdrrJgpAiGkZRM0zz_ER_eRYU1Pu6qudS1Kfb ga-2CwhFMMqB5u923-gZCnfLV7YmiKgJW-bqMrubuh458?width=4032&height=3024&cropmode=none


https://dsm01pap001files.storage.live.com/y4mKcbuBal1J7b1cyyKMEct1aDgnK0gmhYMSlTAdEpiTZrKMv3 haz3beX2GD3yPnCtC3EUkfjaXJqj6Q6pdavElMWGAPKCLsunPR 79YN__BliKV-fJyEvIZueTNYvcCTZIktnPxbh6M0AI5ag0rAgse8-Q9wJSwvQ7WqmEHsI4Kk6lU2j9nezoKU_n_PDrDVmFJ?width=4 032&height=3024&cropmode=none

Condition of the splines inside the gears also looks good.


https://dsm01pap001files.storage.live.com/y4m5lw69qc3z-I_u6Xdh2J_pTtZdcDpX4VhfFdjAkX-W8yml0LKSW0SDGtVE_VKBKyWoxgWyIZmgrIsExw51xbl_TJQU4 FNwA0A-Zk7kqrvciV_0Pj7MPjTmt7g0nBLuWsgnctdmoBCh0Y4FwuFArj 2SYxmEAYPYV5JXDiFBAaUsLh_T-8At0DYKWaWrtU7Li6W?width=4032&height=3024&cropmode=none


So it's obviously not new, but all in all, it's very rebuildable.

[ShiRen]

So which trans had the splines not meshing right in the pic?

[Dr_Snooz]

That's the new one. They're meshing about as well as they ever did from the factory, I imagine.

[Dr_Snooz]

Here are some better pics of the syncros. They look nearly new to me.

https://dsm01pap001files.storage.live.com/y4mOJ9IQusxbUj1HrxGZ4cQsBY3cHQhOo4FDKW_idBt5577pVB q5LxAehy8ldmynPmFAguBV7dT2nEqcTmeW3kGYO-ozN6pSeMIlomTRsJ5bupmCEv7m1cqZZm85sX3WCe_JAsEkQIOi Y4LFPTB5d3lKzGVeeqE7XgN9FLBV01ERYoMGxQN6V6yiRW894j UZv0T?width=4032&height=3024&cropmode=none


https://dsm01pap001files.storage.live.com/y4mS20z3VY06x8AFqlYnmj4ZpGl7ZsifVIr2MLnrGpVWZ0z8Np U5wnzh5g_CNEDmpUbj-wJZ6atCquVz-aKk2NBBwnu8-vcDnPCfUccX7kHtBWuTDOtrOfyLfuYcIPxVdCjmjhmBSTjjcFP 4LDRfs2J2WozCb1lXXncYcGijk6x9KeN-yi4eLHSI_L_WNPHvQaG?width=4032&height=3024&cropmode=none

[conozo]

I agree, looks new/unused.

[Oldblueaccord]

Snooze as far as failures all I remember seeing is the gear clusters teeth sheared off smooth...and I do remembering mentioning about drilling a hole in a shaft out to get more oil to the 5th set up.

[conozo]

Snooze as far as failures all I remember seeing is the gear clusters teeth sheared off smooth...and I do remembering mentioning about drilling a hole in a shaft out to get more oil to the 5th set up.

I agree, I've seen lots of pics of destroyed 5th gears and they are always like what is described here.

[Dr_Snooz]

Snooze as far as failures all I remember seeing is the gear clusters teeth sheared off smooth...and I do remembering mentioning about drilling a hole in a shaft out to get more oil to the 5th set up.

Do you think the spline failures are an oiling problem? I'm honestly not sure at this point. I'm halfway to having the busted trans out, so I'll take some pics when that's done.

I want to see if it can be rebuilt.

[Dr_Snooz]

Warning: graphic footage ahead. Viewer discretion is advised.


I pulled the broken trans this week and had a look inside. I was not prepared for what I found.

https://dsm01pap001files.storage.live.com/y4mHI9rg81_BT6j46MAQVM8fFBz5KP9qgFecB6pkNBwpLMxyJN yMqi5cIeXY9GazKFU4vG7LB2cKFs0wkKKgDSaUXpdPrE9fqtiL GxkZrPtuKK6qZwUSDP3QsjHrn6rODorqogcEWPSlgFQWeSZx_7 c1ttg6h0H19St4SBLCYuHwX8FDQxm3bZmiRi8OfZ3dIB1?widt h=4032&height=3024&cropmode=none


The gear teeth are gone.

https://dsm01pap001files.storage.live.com/y4mYfPy7BkmaCwdbrpNA_jjeyUCMI-8s7X8sp1_2dw31aZqPoxV0vw4v_NeJ1xdRmVnyfIkr1RBR2Akw UJe3olAm3LuJKHJ5qji-tyQXpy9Zmi7R6gsqSDcg-stLvyHppW1LZDRwzLOlV8-vPBA3Uc2C5eYws3wnabUi3jzsboj2W5igYpGMmwkxXaT76Iubh kE?width=4032&height=3024&cropmode=none


You can see what looks like metal paste all mashed around the gear teeth, but it's not paste. It's actually melted metal. It must have gotten awfully hot.

https://dsm01pap001files.storage.live.com/y4mBb6qt0a3cUMLeDByJSF1vwEJsHUDcBkoZZj0TO8hpfQhYeU 81aul-pi6j4jU8V6CMrhyAoiBI83GEZipasNAliE6WZ_MbIQPi8tZV6P tPXaklB9frxBlsWEwgwyk53V6llbqciwmk1xeXOOjDo9_13nNB r70Ml9dmxxDYNM-Q0LXAPw-SSbVFEPf8VaAZ-7U?width=4032&height=3024&cropmode=none


https://dsm01pap001files.storage.live.com/y4mpyNSj8ejj2OFwwl6AZAEuIdsCa7yZArxRp3SNQRYIGAzDEZ gBmf7GK9LSOzGPJLhY-p8nMNtUC11gFBCwDs_6rG-VdQFB7lpk7ahVatRC5F8gSJeFU4dmDP2KemPl8UXsFETxPFEGn TbDzfU_IFuE157PO09a6vAKtgzHGFRnL7WVhiDHeq2xJHJ91l7-7Br?width=4032&height=3024&cropmode=none


Go back to the first photo and notice the piece of wire pointing from the shift fork to the union of the two gears. Do you see it? That is what remains of the detente wire on the 5th gear syncro.

Here's the syncro.

https://dsm01pap001files.storage.live.com/y4muER35R9VS0inZGhjK015B33DQuaIXpHvG_S6cCce70VqBb6 TuRNr_oKqefMiFnqmzb-FnpwUwY-oh-aJ6dxdTOFm8_KrkRYvKVJssVjhjkht3uCgGp0nGCuK80Bdgv2L Dpu9jnm4-OeY2waYe2OMxUkzH3aqghKS-_jZT3kr7e9B4GyRlS-JdeRn_8WISdlU?width=4032&height=3024&cropmode=none


Notice the dark hot spots on it?

My hypothesis is that the wire failed somehow (thus producing the "crunch" every time I shifted into 5th) and was drawn into the gears with predictable consequences.

Notice how the syncro is cracked.

https://dsm01pap001files.storage.live.com/y4mfdKsVfYwuruxqrnf2tzIAMQhelamPrkj_3GnmIzqU0a6CWm GD_RLwex-FMfEfUd3CaDE0uFIez4RV59so7ASQQD8Q910JkYeHNbTCE4v7O Fg9tDjnTdbr-otaJ-tEjylc9wPnwCIhgGe7K5Fk1zBTcwhdPZVk9K9F9bxZtcQJPaaF-bgFqrWI3nXSDt4Z7E7?width=4032&height=3024&cropmode=none



https://dsm01pap001files.storage.live.com/y4myIYx-C_kv7Xf5lgBD2d-f78YbASpzawyFH6qnwFNFOp9_fZm060o7idxdYzcKbkRSQXygh jSoL4A6JR37pjlYmjEENGGYM5jC6QTgV_2hJBDXmVvPiHEan1m u4Wl5ngH9UaALXU_kJ6213cPWyBXjTSCUCQc0pSi6PD8G6Zp_n 0YbDsAgctjav5zEaDsbtSD?width=4032&height=3024&cropmode=none

[Dr_Snooz]

The splines are fine.

https://dsm01pap001files.storage.live.com/y4mh-RJiNR4y1Q6hY5bCLtY8qB8ZQnRdvla-sgYuc7OiS3sMMHM0jZElQQafTqXch45ljS0uVW3zQA2uT5EKcb g5dy57u0PgQZ-8LptQV7V9fndJLWKGdUkkg-VATiMcstzkegwFqv0mocamDu7KnArAfGqszxYaoC6oGNNYfjTU psjmmKus7-6wqzebA6l8AC_?width=4032&height=3024&cropmode=none


But the mainshaft got hot.

https://dsm01pap001files.storage.live.com/y4mszkkOa5SCcMVNTIGlSVTl_-q1TAYqdMoIfgHl4xvE6czce0OE1mGplzuU_t3h4iKeeCbVqcov 10GuT8PrDpJk1baaYz7cW2TUd3jNm6gSWUzZb2Z9k2wDVeo3VP C5J6QUw4SQoK7Kv1_ReleMyT0upRWDLSTMJJLQVW2JdBiIRO7A UcaxDfSykDphUr3-6Qp?width=4032&height=3024&cropmode=none


The bearing turned black, though I'm not sure if that was from heat or the black, nasty oil that was in it.

https://dsm01pap001files.storage.live.com/y4m9i3gQNGzm4OTLbTUSSlJ1b4nKZWZfGuyGSf3MhznUfyDtnQ UpZYVNTQTG3ASXWhFA8WDZcc3mPaaWIB05dCtQYD3ap-33nAKy8BCR9RO5bMu5rGe09s1jbqaRQJkjUxYnl1Rf_Y_ioQLE WVn1vgMXKrzyXbDUIovmNAr1XeoIAJuJ6ZPwV7jh60zwYMG3nX r?width=4032&height=3024&cropmode=none


Compare to the new trans.

https://dsm01pap001files.storage.live.com/y4myvre9u6s4DXDF1gbnD_DTEnyE40OzjasoEjvPzmnOd9-l20R-ZrGfiVG4bQ8UvPy3eiEJouwUaqcM2_E2j77eUDs9T3BqgCavf2 IeNd-lkNfAkb-rA2J8WqR7Vt-LtBE6WUxH2R2yU1cQLWlnjoSw9bY5P8xklCChtbnnzoZ3zev3G FVqcrvHSsOAWmqcQkn?width=4032&height=3024&cropmode=none


So yeah, it's a mess. I can't say what happens to all these 5th gears, but it looks like this one had a syncro detente wire fail first, get caught in the 5th gear set and cause a lot of damage.

Hope that helps someone else.

[Oldblueaccord]

Nice work with the pictures!

I think that last picture that hole people drill out to get more oil out to everything.

I think your correct the syncro/wire caused a knot up and there went the teeth.

[Jinnai]

Thanks for the pics, very interesting! Much worse than my 5th gear, though mine still wasn't functional.

[InAccordance]

Someone's been grinding some gears in that box, some good ol chipping going on (the new one)
Can't find em, grind em.

but holy shit those gears in the old one are brutal

[ShiRen]

I think I see your problem Snooz, but you might need to check that gear mesh with your .75" feeler gauge to be sure.


Someone's been grinding some gears in that box, some good ol chipping going on (the new one)
Can't find em, grind em.

but holy shit those gears in the old one are brutal

YOURE ALIVE!

[conozo]

Thats interesting. When i swapped in a 5 speed on mine, i cracked it open and found the 5th gear synchro was pretty worn and that detente ring was broken loose but my gears were fine. I dont remember what exactly this detente ring does but i am wondering if its the reason these 5ths are failing. I've seen that detente ring broken on all bad 5th gears I've seen. I wonder if its partially engaging 5th gear when you are not in 5th gear causing excessive heat then it melts.

[ShiRen]

I bet the crunch on mine is a broken detent ring... Did we have a source for those or nah?

[Dr_Snooz]

Détente rings? Or 5th gear? There are these gears that someone posted earlier:

https://www.3geez.com/forum/3geez-accords/148392-need-5th-gear.html#post1223066

If you want a detente ring, you'll probably need to buy a kit. If you can find one.

[Dr_Snooz]

Thats interesting. When i swapped in a 5 speed on mine, i cracked it open and found the 5th gear synchro was pretty worn and that detente ring was broken loose but my gears were fine. I dont remember what exactly this detente ring does but i am wondering if its the reason these 5ths are failing. I've seen that detente ring broken on all bad 5th gears I've seen. I wonder if its partially engaging 5th gear when you are not in 5th gear causing excessive heat then it melts.

You sir, win the prize.

ALL - CLUTCH DRAG KILLS SYNCHROS! - Jacks Transmissions (https://jackstransmissions.com/blogs/pages/clutch-drag-kills-synchros)

What the link says is that a dragging clutch will cause your synchros to fail. My synchro definitely failed prior to 5th gear blowing apart. That was the crunch each time I shifted into 5th. That crappy clutch I showed earlier was definitely causing drag. I had to slam the trans into first sometimes. I didn't know it was the clutch though, because it came and went. I thought maybe the clutch fork was failing or something. When the synchro failed, it popped that ring, which got swept into the gears.

Had I known, I'd have pulled the clutch sooner. Now I just have a giant mess to clean up. The only thing I don't understand is why 5th blew apart and not 1st where I was actually hammering on the synchro.

[ShiRen]

When I changed my clutch the first time I magically had the issue of my clutch throw being too short and had to remove everything from behind the clutch and make the cable completely slop free. Never figured out how that happens, not like the clutch release shaft can really be bent out of adjustment, and its not bent or twisted, nor have I every stomped the clutch like a gorilla. I think all that happened the first time I was unable to engage the clutch was the clutch cable adjustment slipped, friggin weird still, I kept using that cable.

Just saying though, you've got tons of extra clutch travel if you need it. Also I don't agree entirely with that article. Either I'm really stupid and I am roasting the fuck out of my clutch and its taking it like a champ, or there is a harmonic issue keeping me from shifting over 6k rpm in 2nd. Its the only gear that vibrates the shifter and makes a stupid noise. I've just come the conclusion that this is not a racecar gearbox... oh, and its old, it works just about as well as you geezers. I still suppress that fact in my mind though.

No detente rings (https://www.transmissionpartsdistributors.com/honda-a2-acura-cg-transmission-rebuild-kit-with-synchro-rings-fits-85-89-bk238ws/)
Still no detente rings (https://www.transmissionpartsdistributors.com/honda-a2-acura-cg-transmission-synchro-rings-kit-fits-85-89-accord-integra-srk238/)
Can that thing just be removed? :dunno:

Snooz, can you measure the diameter of the synchro where the spring sits?

[Dr_Snooz]

Sorry. I sealed it all back up tonight.