k my friends got a b18c-r in his teg, and i set the timing on it, spun the motor over by hand a few times to make sure its lined up just like ive done 50 times on my car. well we crank the car over and it wont start. ( i had the dizzy out 180* by accident) anyway, my buddy looks at the cam gears and they both spun out!! well he re does the timing we drive the car around the block (never went over 4k rpm) and then come back park the car. go to start it the next morning and the intake cam is off about 3 and half teeth!! well we re did the timing again a 3rd time and i went down the street, pulled into the garage and the second i got in the car just died. well the intake cam is off about 2-3 teeth again.....what the hell is going on??

-timing belt has NO slack watsoever in it
-there is no oil leaking anywhere for it to slip
-the tensioner is tighter than a virgin
-cam gears/oil pump/crank pully are all OEM still

i have no idea why it keeps doing this...were gonna try a brand new timing belt tuesday..this one has about 3000 kilometres on it that were using..

any ideas would be great

 

you sure you have the correct timing belt? LS and GSR belts are different along with the water pump......mix up the belts or pumps and you will have some weird timing issues just like that.

also make sure the belt is actually wrapping around the crank sprocket and/or the water pump. sometimes the teeth of the belt will ride up on the sprockets rather than inside the grooves.

 

I would check the belt number and make sure it’s the right one with the right water pump. -don’t tighten the belt to tight. This would create a problem you don’t want like snapping the belt or you may have stretched it.

 

yah man the motor has been running for about 3000 kilometers with this belt on. the reason we took it off was to take out the cams and we rebuilt the tranny...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2ltrtodd &raquo;</TD></TR><TR><TD CLASS="quote">yah man the motor has been running for about 3000 kilometers with this belt on. the reason we took it off was to take out the cams and we rebuilt the tranny...</TD></TR></TABLE>

maybe the woodruff keys fell out or are damaged....etc.?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">

maybe the woodruff keys fell out or are damaged....etc.?</TD></TR></TABLE>

if your talking about the ones on the cams we never took the gears off them. and if they fell out the gears would just be spinning and not even move the cam itself.

 

right....it was just an idea. The belt is loose somehow...there's no other way for it to skip teeth unless it's loose. Are you using a 22 tooth or 19 tooth waterpump and matching T-belt?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">right....it was just an idea. The belt is loose somehow...there's no other way for it to skip teeth unless it's loose. Are you using a 22 tooth or 19 tooth waterpump and matching T-belt?</TD></TR></TABLE>

the belt is so tight its nuts. its a itr motor its got 22t water pump with gsr/itr belt. b16 belt is to short. i think we got it figured out tho. the belt that was on there seems to be stretched or something....took the belt off my old gsr and took it around the block and it seems ok so far....

 

if you dont turn the motor three teeth before tensioning, this can happen.

 

k well it slipped again. thats how were doing it!! trust me, myself and the other person working on his car have done this many many times ive never seen this happen before.. gonna try a new tensioner also but this thing is TIGHT!

 

do the cams spin on the head... i had a similar problem.. the head i had was fucked the cam journals were warped causing the cam to turn then get stuck then turn and get stuck again... like a oval ina round hole is what it looked like..

 

yah the timing is fine when its cranked over by hand or at an idle but as soon as there is load on the motor from driving it, thats when ya notice the cam timing will be off...

its hard to explain in person whats happening yet alone on the net in writing hahah

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2ltrtodd &raquo;</TD></TR><TR><TD CLASS="quote">k well it slipped again. thats how were doing it!! trust me, myself and the other person working on his car have done this many many times ive never seen this happen before.. gonna try a new tensioner also but this thing is TIGHT!</TD></TR></TABLE>

Maybe the spring that tensions the tensioner fell off? Shine a light down there and check. Something isn't right....I know you say it's tight, but if it was, it wouldn't slip. You've been driving the car, so you know it runs alright, so there has to be a problem with the tensioner set up. You double checked you have the right belt? How much deflection do you have on the front and back of the belt?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">

Maybe the spring that tensions the tensioner fell off? Shine a light down there and check. Something isn't right....I know you say it's tight, but if it was, it wouldn't slip. You've been driving the car, so you know it runs alright, so there has to be a problem with the tensioner set up. You double checked you have the right belt? How much deflection do you have on the front and back of the belt?</TD></TR></TABLE>

yah everythings on there.. we tried like 2 differnt belts they are for sure the right ones we triple million checked the part numbers with our buddy at honda. trust me the belts on the right tightness. we even tried cranking it down to the point its solidly tight but decided not to run it like that since its bad for the cams/journals in the head.

gonna try a new tensioner when i get back from my business trip unless he does it before then..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">

Maybe the spring that tensions the tensioner fell off? Shine a light down there and check. Something isn't right....I know you say it's tight, but if it was, it wouldn't slip. You've been driving the car, so you know it runs alright, so there has to be a problem with the tensioner set up. You double checked you have the right belt? How much deflection do you have on the front and back of the belt?</TD></TR></TABLE>

That spring does nothing after you have tightened the tensioner down AFAIK.

When it comes back with skipped teeth, is the tensioner still where it used to be? Mark it next time.

This would be an annoying *** problem....geez.

Good luck

 

my friend had something similar but he put a longer bolt and it felt tight but it wanst really holding the tensioner they way it should. Try and oem bolt from another car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">

That spring does nothing after you have tightened the tensioner down AFAIK.

When it comes back with skipped teeth, is the tensioner still where it used to be? Mark it next time.

This would be an annoying *** problem....geez.

Good luck </TD></TR></TABLE>

it was just an idea. It has to be something unorthodox....the belt shouldn't be skipping if the tensioner was tight and the belt is tight.

 

well i set it once again and told him not to drive it until we tried a new tensioner and whatever. guess what. got a call at 2am the cars died on the other side of the city.

blew up cylinder 4.. hole in piston. valves snapped and jammed in the head sideways. head is mashed to ****. ....

 

DoH!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2ltrtodd &raquo;</TD></TR><TR><TD CLASS="quote">well i set it once again and told him not to drive it until we tried a new tensioner and whatever. guess what. got a call at 2am the cars died on the other side of the city.

blew up cylinder 4.. hole in piston. valves snapped and jammed in the head sideways. head is mashed to ****. ....</TD></TR></TABLE>

Nice...

The first problem I found was when you mentioned the dist being 180 degrees off. Impossible to install the dist 180 degrees off because the keyway is offset. There is NO WAY it would allow you to incorrectly put the dist into the end of the intake cam.

 

uhh,, sure it wouldnt. they go in 180 out pretty easily, the key floats on the distributor enough to be forced in.


i think your problem was over tensioning.. the belt was probably stretching each time.

 

I think the problem was that the journal in the head was f'ed from the dizzy being installed 180 out and from there it snagged the cam on each rotation, skipped a few teeth with load, got so out that it finally left those valves open long enough to blow up...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pomansouth01 &raquo;</TD></TR><TR><TD CLASS="quote">I think the problem was that the journal in the head was f'ed from the dizzy being installed 180 out and from there it snagged the cam on each rotation, skipped a few teeth with load, got so out that it finally left those valves open long enough to blow up...</TD></TR></TABLE>

the car never ran with it 180 out. that how i knew it was off so i fixed it. and ya i know the journals in the head were from over tightening the belt but any more loose and it would skip a rediculous amount. i dont know what the problem was and probly never will. he got a ls-v complete with turbonetics kit for 1500$. that b18r is gonna be sleeved and i got a extra head sitting at my machinests im gonna give for that.

he said he drove it for a few hours and it was running awsome and then on his way home it just died.

o and another thing i forgot to mention that i found was he was using JG race springs in the head with stock valves. i think the valves were stretched




Modified by 2ltrtodd at 11:23 AM 9/20/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2ltrtodd &raquo;</TD></TR><TR><TD CLASS="quote">the car never ran with it 180 out. that how i knew it was off so i fixed it. and ya i know the journals in the head were from over tightening the belt but any more loose and it would skip a rediculous amount. i dont know what the problem was and probly never will. he got a ls-v complete with turbonetics kit for 1500$. that b18r is gonna be sleeved and i got a extra head sitting at my machinests im gonna give for that.

he said he drove it for a few hours and it was running awsome and then on his way home it just died.

o and another thing i forgot to mention that i found was he was using JG race springs in the head with stock valves. i think the valves were stretched


Modified by 2ltrtodd at 11:23 AM 9/20/2007</TD></TR></TABLE>

When the dizzy got installed 180 out, it stretched the journal probably, leaving it egg shaped...so when it was put on right with the egg shaped journal, the cam would rub....glad to hear there is a back up plan in action and glad to hear that you had parts laying around to help out

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pomansouth01 &raquo;</TD></TR><TR><TD CLASS="quote">

When the dizzy got installed 180 out, it stretched the journal probably, leaving it egg shaped...so when it was put on right with the egg shaped journal, the cam would rub </TD></TR></TABLE>

maybe if the distributor was put in with a press.