Delta Cam 260 grind

[lostforawhile]

Ok, I replaced the water pump this past Saturday, Also replaced the valve cover gasket a month ago when I adjusted the valves. Damn thig still leaks though. I already have the new timing belt sitting here waiting, But I'm contemplating the tensioner. I may change it, but on the same token, I can have it all apart in about 20 minutes if it starts making any noise. I do plan on changing the crank seal while I'm in there, and also that stupid hose on the backside of the oil pan that goes up to the engine. WTF is that for anyway? Oil pump huh? I didn't even think of that... Thanks! I think I'll definitely change the cam seals since it will all be out. And since I have never had the dizzy off, is it just an o-ring for a seal on that or is there actually a gasket?

did you put gasket sealer on the corners of the valve cover gasket? thats where it leaks. where it goes from flat into the bearing caps. on the cyl head itself,then set the vave cover on the sealer. don't overtighten it or it will leak also. the hose that goes from the pan up the back side of the engine is for your pcv system. it goes into a liquid vapor seperator on the back of the block,then the vapors are pulled up through the pcv valve into the intake. the dizzy seal is an o ring, there seem to be two different seals,because every time i order one,honda gives me the wrong one. they are cheap,order both. then you've got it. were you talking about your water pump leaking? if it is,run a bead of sealer in the o ring groove,put the o ring in it,smear some more on top of the ring,then stick it in place. it won't leak. sometimes gaskets don't like to seal well on old engines. good time to paint some of your engine parts too while they are out. https://www.3geez.com/forum/showthread.php?t=55344

[Jasonf860]

Yeah, i checked out your purple stuff... looks great! i'm pretty adept at water pumps, I've changed about 30 or so an my cars and other peoples. i had a Mercury Tracer that used to eat them! I changed that damn thing every 4-6 months for 3 years! Thank god for warranties! I also painted some stuff while it was apart for the pump, and i would have done the timing belt then but I gave up on the crank bolt. I'm getting a better impact driver so there will be no issues this time! My old one in 20+ years old and was originally only a 250 foot lb model. It's probably more like 80 now. the one I'm getting is a 500 lb model so I am confident it will loosen the crank bolt no problem. When i did the valves I used some black RTV on the corners like you said, but it leaks all across the front above the plugs. This time around, I'm RTVing the whole damn thing! Thanks for the heads up on the dizzy seal. I will indeed order both, and that PCV hose, Mine leaks like crazy! Sounds like I have a problem there if it's only supposed to be vapor!

[lostforawhile]

Yeah, i checked out your purple stuff... looks great! i'm pretty adept at water pumps, I've changed about 30 or so an my cars and other peoples. i had a Mercury Tracer that used to eat them! I changed that damn thing every 4-6 months for 3 years! Thank god for warranties! I also painted some stuff while it was apart for the pump, and i would have done the timing belt then but I gave up on the crank bolt. I'm getting a better impact driver so there will be no issues this time! My old one in 20+ years old and was originally only a 250 foot lb model. It's probably more like 80 now. the one I'm getting is a 500 lb model so I am confident it will loosen the crank bolt no problem. When i did the valves I used some black RTV on the corners like you said, but it leaks all across the front above the plugs. This time around, I'm RTVing the whole damn thing! Thanks for the heads up on the dizzy seal. I will indeed order both, and that PCV hose, Mine leaks like crazy! Sounds like I have a problem there if it's only supposed to be vapor!

there will be liquid oil in that hose down near the pan. it seperates out right under the intake and the liquid oil runs back down the hose. thats why sometimes if you overfill the oil,it will smoke. the seperator gets overloaded and drops of liquid oil get sucked up through the pcv valve.

[Jasonf860]

there will be liquid oil in that hose down near the pan. it seperates out right under the intake and the liquid oil runs back down the hose. thats why sometimes if you overfill the oil,it will smoke. the seperator gets overloaded and drops of liquid oil get sucked up through the pcv valve.

Ah, i see. I know the hose on mine is literalyas hard as a rock so i know the hose can't be sealing at all. I'm just gonna replace it and see what happens. Thanks for th tips though, Learned something new today!

[Jasonf860]

I asked Scott at Delta about timing with the new cam and here's what he said,

Jason,
The cam will ship today 10/12/06 and you will want to run a little more advance with the modified cam.
Thanks again,
Scott

Just thought it was pertinent info for anyone with a cam or getting one!

[HondaBoy]

on topic of cam replacement, is it necessary to repalce the rockers and springs? if i get a new cam, i want it to last. but mainly installation will determine that usually, depending on how well you have installed it and what not. so, i was thinking of going for the Delta 272 cam, but would i be happier with the colt? i want mid an top range power mainly. so anything over 3000 rpm is going to be where i want the power to come on.

[bobafett]

you can inspect the rocker faces when you pull off the rocker assembly, if it doesn't show any scarring or weird wear marks, i would say you would be ok.

as for springs, it sure cant hurt to change out to some newer ones, but unless you have noticed float at high rpms you are probably ok, or if you plan on revving much higher.

if you want power from 3000+ a 272 will be a good choice.
for reference a 282 brings the power on around 4000. but wow does it pull!

[HondaBoy]

would the 282 duration make for bad fuel mileage over the 272?

[gfrg88]

i dont think fuel milage changes with these cams, mine did but it was because i loved how it felt revving to redline

[bobafett]

i cant say for sure, cause i only ran that 282 for like 50 miles during my break in, but i would guess that they don't help mileage. i dont think my mileage changed much with the 272, when i had all my vacuum stuff hooked up i could still manage 37mpg freeway....

i have always assume that as a rule, the more aggressive the camshaft, the worse the mileage, but there are exceptions, like the tri-flow profiles which are supposed to help mileage slightly.

[Jasonf860]

shipped or plus shipping? if it's shipped, that's a wonderful deal. if it's plus shipping, that's a great deal.

Got my cam in yesterday with my invoice. $83 and some change shipped! That is without a core! I have to contact them and see if they want my stock cam or what the deal is. I think they undercharged me. Scott sent me a t-shirt and a few " Delta Cam" stickers. Cool deal. And like Bobafett said, they are REALLY fast there!

[MessyHonda]

Got my cam in yesterday with my invoice. $83 and some change shipped! That is without a core! I have to contact them and see if they want my stock cam or what the deal is. I think they undercharged me. Scott sent me a t-shirt and a few " Delta Cam" stickers. Cool deal. And like Bobafett said, they are REALLY fast there!

nice...i want one now...lol take pics of the install...i might change mie but im scraed i might screw up cuz its my DD and i cant afford to brake down.

[HondaBoy]

^ y'all have the same avatar it looks like. lol. anyway, that price sounds good. i'm going to see about getting a cylinder head off another car and having a local shop machine it and whatnot for me. delta may be the way to go. but i want an agressive cam that i'm going to notice. well, tell us how your new cam feels when you put it in.

[2oodoor]

This coming weekend I am gonna give it another go at the damn crank bolt. A reground cam is useless to me if i can't take the damn belt cover off to take off the timing belt! i had a damn 10 foot pipe on the end of my breaker bar and the damn thing still wouldn't budge! Anybody got any ideas on how to get this off????? It's way overdue for the belt change and I'd like to do the cam at the same time...

mine came off with a cordless half inch impact driver, 17mm socket, impact driver was one of those goodyear brands from pep boys, el cheapo but it worked great for that and busting off tires without draging out air hoses and crap. I would not put too powerfull of an impact wrench on it though, hellofa mess if you broke it.

[DDRaptor]

Sweet. Paeco was like $250 thanks for sharing the info.

[Jasonf860]

Well, I'm in progress and my friend with the digi cam is not here. When she gets here, i'll post pics of the remaining install, whatever is left anyway! I got the crank bolt out with some PB Blaster and a few grunts. No impact driver needed! YAY! I'm about ready to take the belt off and start the cam removal/install. Not bad for an hour of work! I only snapped off the A/C adjusting screw so far! LMAO! No biggie. Probably another 2-3 hours of work to go! I'll update when I can!

[Jasonf860]

Ok, timing belt is off, rocker assembly and old cam are out, cleaning new cam now ......

[Jasonf860]

Still no Digi cam! WTF? Oh well.. Cam is IN! Rockers are on and torqued, dizzy is in, timing belt is on and tensioned...

[Jasonf860]

Ok, she's running! I had to mess w/timing a bit to get her to idle but she's running. Tomorrow I'll be messing with the carb and the timing a bit. It never really idled right so I'm gonna try and fix that.

[bobafett]

nice!

i am sure u will love it, but post up your thoughts on the power gains/losses, so we can convince more people that cams are one of the best mods u can do for an accord!

[Jasonf860]

nice!

I am sure u will love it, but post up your thoughts on the power gains/losses, so we can convince more people that cams are one of the best mods u can do for an accord!

I know my timing isn't exactly right at the moment. I ran out of adjustment w/the dizzy. So far, I have it advanced as far as it goes stock and that's still not enough. Makes me wonder if I am off by a tooth on my belt even though I turned the engine around 3 times and it always came back to TDC. Anyway, I broke in the cam and took it for a ride ... BIG difference in power! RPM's climb a lot faster and smoother! The low end loss is barely noticeable, in fact, I may even have more! I could never even chirp the tires before (AUTO) and now they chirp if I floor it off the line!
Today is tuning day. I'm taking off the dizzy and elongating the adjustment holes even more so I have more advance, re-adjusting the valve lash, and I am going to mess w/my carb and hopefully figure out the damn choke issue.. I'll post more after the tune....

[MessyHonda]

nice jason...keep up the good work

[Jasonf860]

nice jason...keep up the good work

Thanks! Got the valves adjusted... Man were they WAY off after the run in! I set them dead smack on .006 and .008 when I installed the cam. They were at .009 and .012 respectively! I adjusted them back down and things got better from there. I elongated the dizzy adjusting slots and got another 4-6 deg. of advance. I also worked on the carb a bit. I brought the idle up to normal range (It dropped a lot after the cam install), and figured out why my choke is not working! Not sure yet if there is vacuum to it or not, but there is some kind of vacuum choke unloader on the front passenger side of the carb. It's not working at all so my car is always on choke! No wonder why it runs like shit when it's cold! I hooked it up to a vacuum pump and brought it up to pressure, I was able to see the pressure drop rather quickly! That tells me the diaphram inside is no good! even if it's getting vacuum, it can't pull the choke open cause it leaks right by the damn thing! Anyway, the car is running sweet (at least when it's warm!) I could feel the dirt/dust in the oil when I slapped it all back together today so I also changed the oil today too. All that dirt was from it being so damn windy yesterday while the valve cover was off. i also was able to get my EFI valve cover painted. It's curing in the oven right now! next week when I do my "final' valve lash adjustment before winter, I will swap it on.
Hooray for getting all the work done I wanted to before winter!

[Jasonf860]

Ok.... Hmmm .... looking back at my work this weekend.... and how much advance I'm running...... I think I may be off a tooth on my timing belt . But what way am I off

[bobafett]

I had a heck of a time getting the timing belt on the proper way. the car would seem to run ok, but I would have like 20 degrees of static advance lol, so i would be running like 32 degrees with the diaphram pulling more!!!

the trick that I found is this:

- get the flywheel to tdc and and the cam gear to tdc. u can leave them alone for a bit.
- make sure tensioner is loose
- pull the 'front' part of the belt onto the gear, you can probably only get it half way on like this.
- pull up as hard as you can and slide the back half of the belt on, using the tensioner to pull more slack out of the belt so you can slip it on.
- only turn the cam gear 3 teeth
- tighten the tensioner
- manually turn it over to make sure they are still in sync
-try it out.

the part i always screwed up was turning the engine over a couple times before i tightened the tensioner. i am not sure why this seems to be so critical. but it seems to make a big difference.