Cam Gear Feeler thread ... formerly GoldenEagle ACG round 2

[phrenology]

you can still get the flywheels right? i still want one, but during school its hard to pay for one. jan or feb
zach

Please lets not turn this into a flywheel thread...there's already like two of those. Dig it up and post there if you have flywheel questions, PM, or email: [email protected] for orders or questions. As for the timing gears, they haven't been run yet so it will be a wee bit longer. When I have results I'll start at the top of the list as it stands. If you are not on the list and you want to preorder then you need to PM me as explained at the top of the page.
Thanks Geez.

[phrenology]

Bumpity Bump Bump...I got pics up thanks to LaurenALexS...take a look. As you can see it fits out camshaft. I'll get the pics of the other colors w/the timing belt up as soon as I can find that damn cable for my digicam.

Looky Looky:



Here Too:

[mkymonkey]

wow! nice...but what color is it? lol

[Vanilla Sky]

i believe that one is the titanium color.

[mkymonkey]

oh ok....cuz it looks brown to me... :\

[Vanilla Sky]

that's the reflections from the brown in the room.

[2drSE-i]

looks like its time to buy a torque wrench

[phrenology]

oh ok....cuz it looks brown to me... :\

No its actually dookie colored. Straight from the factory shine you know!?!?!?

Sorry I don't have my computer here with photoshop so I couldn't do an RGB color correction. I was anxious to get the pics posted. I still haven't been able to hook up my camera and upload those other color gears with the timing belt pics. I have to work real early tomorrow and its rumored to be a 14 hour day so maybe this weekend I'll be able to make more progress with these.

Yeeesh all I do is sleep...work...work...sleep...eat...poop...work... work...cam gears...work...poop...sleep...eat...work...and of course eat poop and sleep at work. LOL

[mkymonkey]

cool, now im kinda excited! and yes i mean in that way.........mmmmm new cam gear

[halxi]

i just counted those teeth...

dont the accord motors need 42teeth?

if so, that only has 40

[mkymonkey]

thats already been covered bud....read the rest of the thread

[Acid X]

THey aren't going to work. I already know that... 42 teeth != 40 teeth. Timing = fuxed.

[1987HondaAccord]

whoa... you're speaking all sorts of code its almost like....

if ( teeth == 42)
cout >> SWEET;
else fuxored;

^^ all sorts of syntax errors in that...

[mkymonkey]

lol

[2drSE-i]

#include <iostream.h>
#include <lvp/stream.h>

int main()
{
double a20a;
double camgear;

cout<<"Enter the number of teeth: ";
cin>>camgear;
if camgear != 42;
cout<<"well........your fucked!";
return(0);
}


lol who knows, im not really sure

[2drSE-i]

lol

[bobafett]

hmm i should throw down a php or actionscript version of this very compelling code! ahaha

[Swap_File]

But by testing the 40 tooth gear we will finally know for sure if the A20 is an interference engine or not.

[phrenology]

We will all know soon enough...the cam gears do fit the timing belt for the A20...I've been trying to post the pics but I can't upload the photos of it. They're may be a problem with the timing synch that's why running it is the last step to seeing if it will work. The other option if it doesn't work spot on is to replace the crank gear with whatever OEM Honda crank gear that this is for...trust me I'm well aware of the situation and I'm working on it.

And thanks to those who stated the obvious...yes there are 40 teeth and yes there are 42 teeth on the OEM A20 cam gear, but the spacing is different and the diameter is slightly different too. This would account for the belt fitting.

I just worked me a 12 hour day with next to no sleep...so pardon my crankiness (no pun intended) Humor me while I snooze.

[Vanilla Sky]

man, it's not problem, i'm just glad you're fully testing these things before you are selling them. it shows what kind of stand-up guy you are.

[Swap_File]

Speaking of the possible need to replace the crank gear, did anyone ever figure out what honda engine came stock with the 40 tooth cam gear? I could keep an eye out for the crank gears at the junkyard.

[Swap_File]

...It's feasable that the spacing is different to accomodate the same ratio...

The problem is changing the spacing of teeth will not change the ratio.

Let’s say you have a 40 tooth gear and a 42 tooth gear. A belt meshes up fine to both of them, or at least close enough. Let’s say that the lower gear driving these two has 21 teeth.

For every 21 teeth that go through the lower gear, 21 teeth will go through the upper gear.

When these 21 teeth go through the 42 tooth gear, they will make it turn half a rotation (.5).

When the 21 teeth go through the 40 tooth gear, it will make it turn .525 of a rotation. That means that for every revolution of the 21 tooth gear, the 40 tooth gear will go another 0.025 of a revolution out of sync.

This is independent of the diameter of the gears. The belt will flex, the gears will not.

Just imagine two gears being driven by a belt made of rubber bands. It really doesn’t matter how big the gears are, only the number of teeth matter.

I am still interested in these cam gears, but in order for us to use them, we will almost certainly have to replace our crank gear to match. I do not know if a replacement crank would fit or not, or what engine they could be taken from.

The only other 42 tooth cam gear I know of is from the H22 engine. So far, I have been unable to find one in the local junkyards for testing with. I have no idea if it would actually fit the cam or not, or if the belt would line up (horizontally), but the H22 belt does apparently match up to the A20 cam gear (tooth spacing wise) according to pictures elsewhere on the forum.

Mixing different cam gears and belts could also be a recipe for reduced timing belt life, it all depends on how exactly they all match up. I do not know how much is shared between different Honda engine's cam gears.

I don't mean to sound negative, I would really like this cam gear buy to work out, I am just explaining the situation in the way I see it.

[LaurenAlexS]

I agree with the analysis by SwapFile. I think that disaster awaits those trying to use the 40 tooth sprocket on an A20AX engine. A few rotations and its all over.

I just took the picture(s). I don't endorse this valve bending, head busting, belt shreading experiment.

Sorry.

[Swap_File]

..I don't endorse this valve bending, head busting, belt shreading experiment...

Maybe not THAT bad, according to this thread:
https://www.3geez.com/showthread.php?t=35768
And here is the post about the H22 belt on the A20 gear:
https://www.3geez.com/showpost.php?p=558532&postcount=8

[Acid X]

I still dont think it will work. In PHP terms:

<?php
var $volgearteeth;
var $oemgearteeth;

function enginequit() { die("Kaputnik!"); }

if ($volgearteeth != $oemgearteeth) {
enginequit();
} else {
echo "Yay!";
}

?>

....