Alright I've gone through 3 timing belts since I've ran my set up. I have Ef-1 valve springs and retainers and custom turbo cams. the cams have a high lift (.48") and a short duration at the top of the peak lift the lobe drops off. I'm unsure what I'm asking, but I want to see if anyone might have the same problem or have any suggestions on what to do.

The first belt broke after about 4000 miles, b16 bottom end and b16 head. b16 belt broke at 5000rpms

The second belt broke after about 2000 miles, ls bottom end and b16 head, due to slack, gsr belt gsr water pump, broke at 4000rpms

The third belt stripped 26 teeth off, after about 5000 miles, ls bottom end and b16 head. ls belt ls water pump, broke at 2000 rpms!!!! shifting into 2nd gear.

all have been honda factory belts. I'm tired of breaking belts and bending valves. I have tried researching and pretty much found nothing similar to my problem.
Thanks for looking

 

sounds like you may not be tensioning the belts properly

 

try get the Greddy or Toda timing belt. maybe that help. But make sure you have the timing belt put on correctly.

 

oem works just as well, toda and greddy and especially power enterprises is just overrated

 

every timing belt has been put on tight and right. except the ls bottom end with the gsr belt and pump...that one just wouldn't get real tight and broke due to the slack. I thought about getting the toda, PE, and greddy belt but I thought they were just stronger and less prone to snap. I'm ripping off teeth on the belt

 

It has to be improper tension there's no way you should break so many belts,you have to be doing something wrong.

 

What else could really make the belt snap or rub off teeth if there's no slack? The timing belt probably has about a half turn or less on both sides of the timing belt.

 

are you putting the thin plate at the crank gear on backwards?

 

it has to be the tensioner or the way you are installing the belt.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kamin &raquo;</TD></TR><TR><TD CLASS="quote">it has to be the tensioner or the way you are installing the belt. </TD></TR></TABLE>

exactlly what I'm thinking

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrettyLude &raquo;</TD></TR><TR><TD CLASS="quote">
are you putting the thin plate at the crank gear on backwards?</TD></TR></TABLE>

I've made sure those weren't the problem after the first time. I bought brand new honda ones and looked through the honda manual to make sure after the first one broke.

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

it has to be the tensioner or the way you are installing the belt.</TD></TR></TABLE>

If it's the way i'm installing it why would it the third time rub off 26 teeth? And if my tensioner slipped off or something like that I could understand.

Could this all be just coincidence and nothing could have changed any of these event?


Modified by inline976 at 10:51 PM 12/21/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inline976 &raquo;</TD></TR><TR><TD CLASS="quote">I
If it's the way i'm installing it why would it the third time rub off 26 teeth? And if my tensioner slipped off or something like that I could understand.

Could this all be just coincidence and nothing could have changed any of these event?
</TD></TR></TABLE>

im not bashing your technical ability, or your knowledge. but no. 3 times cannot be a coincidence. that would be against the mother of all odds. like being in a plane hit by lightning, crashing while winning the lottery and getting a BJ from cathrine zeta jones.

did you ever replace the tensioner? and the spring?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inline976 &raquo;</TD></TR><TR><TD CLASS="quote">every timing belt has been put on tight and right.
</TD></TR></TABLE>
keep in mind that TIGHT isnt always right.
factory procedure for the belt, as you probably know is, to set it up @ TDC, tighten the tensioner, rotate 3 teeth counterclockwise, loosen and re-tighten the tensioner.
you should never make it tighter than this, because honda designed this procedure for a reason. metals expand as they get hotter, and rubber contracts... therefore, if your belt is "tight" when the motor is cold, then it'll be SUPER tight when it's hot.
there should be a certain amount of slack on the belt.

if you are doing the OE procedure for the belt, then disregard this message. it's just that i've seen too many problems from overtensioning the belt.

 

HHmmmmm I wonder if I have been tighting it too tight.....but I use the honda procedure. But I use an alan key to pull up the tensioner to make the belt a bit tighter.

I've been talkin to rocket about the problem too. Suggested it maybe the cam gears. I gonna take a closer look at everything and hopefully figure out my problem

Thanks for everyone's input

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inline976 &raquo;</TD></TR><TR><TD CLASS="quote"> But I use an alan key to pull up the tensioner to make the belt a bit tighter.
</TD></TR></TABLE>
that's a big no no.

 

where you putting the allen key?
i hope your not pulling up on the contact surface of the tensioner....if you scratch that, its going to tear up the belt

 

I'm pulling up in the part where the spring goes.
Could have sworn I've seen post about makin the timng belt tight as possible. well it's good do know now. hopefully this is my last broken timing belt

 

yeah, it is possible to make it TOO tight

 

Thank you Honda-Tech