I pulled the manual tensioner off of my old H23 block and put it on my H22 block, which is now an H23 VTEC. I noticed when I tried to install the cam timing belt, it wouldn't fit b/c it seemed too small.

I whipped out my dial caliper and measured the pulley the H22 belt rode on and the new H23 pulley and the H22 one was 55mm in diameter and the H23 one is 62! Since I'm essentially doing the manual tensioner conversion onto an H22 block, where am I going wrong? What did you VTEC guys do?

 

first thing I would say is you did not swap alll the necessary parts.

 

Well I started w/ the H22 block, and just added the H23 crank. So I have the H22 cam gears (obviously), H22 oil pump, H22 crank pulley, and the H23 manual tensioner pulley, which is a good deal larger than the H22 unit.

That's everything that touches that belt; how could I have missed something?

 

And 2point6's write-up shows that you use the H23 manual tensioner pulley.......so I just don't get it.

 

you sure you routed the timing belt correctly....

 

yup. I went and tried it again, and it just won't fit. With the tensioner completely relaxed, it still is just a few mm's too short for the belt to fit over the last cam gear. I checked back over 2point6's writeup and can't find a thing wrong w/ the way I did it.

 

yes, you do use H23 pulley. the belt was a tight fit on the one I just did the other day also. you do have to stretch it just a teeny bit, but once on pulleys, has just enough slack for manual tensioner to do its job.

BTW, what's your reason for swapping to manual tensioner anyway? Did you install different cams and/or valvetrain?

 

Explain about the tight fit.

I swapped it out b/c I built an H23 VTEC from an H22 block, and had both of their timing belt components just sitting there, so I said why not upgrade?


Modified by LudeyKrus at 1:05 PM 1/28/2004

 

we had a pretty hard time getting my belt on as well..It was really tight, but we eventually wiggled the thing on. I'd like info on this too

 

Mine was tight too, I just fought with it a bit, then once it was on, it had a little slack. Seems to be the way it goes...

 

Damn I plan on doing the same to my h23 vtec when its all together so keep us informed.

The manuel tensioner has 2 different pulleys corect? So did you use both of them from the h23 or just the one closest to the block? I know you can use the h22 one on the outside of the inside pulley with the use of a couple washers to make some clearance for it right?

I dont know man good luck.

 

yep its normal like that, you gotta stretch her over the cam gears for it to fit. Its like you said, the idler pulley on the h23 is bigger than the h22 by a tiny bit.

 

I used both H23 pulleys; the H22 outside pulley just has a built-in spacer, so I just used the H23 since it was easier.

Anyone got any tips on "stretching" the belt to get it on, w/o destroying it? I've tried prying the tensioner pulley, and working it at the cam gears....nothin's worked so far.

 

i would send 2point6 a pm

 

1. are you using the H22a timing gear on the crank?
2. built in spacer...I'm not sure what you mean

 

I don't know if this helps you at all but I had it online

 

Yes, i'm using the H22 timing gear on the crank. I had to for the belt to fit.

The outside pulley, the one for the balancer shaft, has a spacer on the inside of it to hold it off of the cam timing pulley. I'm gonna try only putting the belt on halfway on each pulley so maybe it'll have a little more slack to work w/.

 

GOT IT! Whew, I went and just pulled the belt so that it only sat about 1/4-1/2 the way on each pulley, and that gave enough slack to slip it on the last cam gear.

And thanks for that pic Satan, I had gotten it from you on an older post and used it to put some things together.

 

make sure u have it lined up right, they're a bitch

 

Yeah, I got it so it's all lined up.

On the bottom right balancer shaft, the little notch to match up the pulley to is kind of at a 7-o-clock position, right?

 

just remove 12mm bolt on back of block and use screwdriver or small drift punch to set rear balance shaft to correct position. It has a 4:1 ratio so trying to just line it up to the mark could still be wrong. When drift punch or screwdriver goes all way through shaft, it is set to TDC.

 

Cool beans; I found a nice diagram on it too.

The next and last thing: the left balancer shaft; the online manual I used said to point the mark on the pulley to the mark on the block, and showed the pulley being pointed to the left side of the block.

My balancer shaft has no marks except for a groove on the shaft near the block; I pointed it to the left little notch thing like the diagram showed, but there was what looked like a little arrow molded into the block at 12-o clock above the pulley; which one should I point it to?

 

you line the groove on the shaft inline with the mark that is in the 12 o'clock position on the front of the block.

Hope this helps...

 

So how does your h23 vtecs run? Mine is about finished and I it will have all stock H23 internals (9.8:1CR)......Do you guys think it'll be stronger than the stock H22?

 

Lilburn, eh? We should meet up someday, when both of our cars are running.

I haven't got it running yet. I have too much school work goin on right now to work on the car, and I gotta get ahold of my friend's engine hoist again to get it back in.