k broke the timing belt on my 98 teg has 130000 miles, wasnt beating on it when it must have shreded some teeth off i dont think the belt was ever replaced, any way the valves are still ok and how can i find out if they are without taking the head off, any help is appreciated guys thanks


Modified by blackccoupe at 4:22 AM 8/21/2008

 

Most likely some got the Tyson uppercut. How fast were you going and what RPM?

 

First off, give her the ol' compression test.

 

so throw a new belt on and try the compression ?

 

Do a leak down test. Then you will know for sure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackccoupe &raquo;</TD></TR><TR><TD CLASS="quote">so throw a new belt on and try the compression ?</TD></TR></TABLE>

Either way you'll need a new belt. That's what I would do, you might be lucky and not have done any damage. That was the case with the LS that I bought. Rather than the belt snapping, the tensioner pulley blew out. I bought the car that way, took the head off and much to my surprise all was good.

 

k found out the timing belt shredded some of the teeth off and the cam gears are all outa whack how bad u think the head might be ?

 

that dosent make much since when a belt breaks it usually stops moving, wich would mean that the belt breaking didnt cause the broken teeth, sounds like someting happened interanlly wich caused your cams to come to a stop when your crank was still spinning, if this is the case its not going to be a pretty outcome

really the only thing that would make the cams stop like that is if the valves got raped by the pistons

this exact thing happend to my eclipse gst, thats why i sold it and got a gsr


but before we jump to conculsions, do a compression test, if you have good compression, then you know your safe, but re post all of the psi readings from the cylinders and we can go from there

 

no i htought it was broke but the belt just shreded a bunch of teeth off

 

hey man people are trying to help you out.....no one here can see your motor or knows exactly what happened. Focus on the problem. Your options:

1. Put on a new belt do a compression test, everything ok you are good to go
2. Everything not ok, you will need a new top to your motor and alot of other parts.

That's it, no one can tell you if it will be ok until you do the compression test with a new belt on. Sign off and go wrenchin

 

When you are replacing the belt, pull the cam shafts and perform a leakdown test. If the valves are bent, you will know.

 

you arent going to be able to do a compression test without the belt on i would put a new belt on and try again usually if you werent raping the engine the valves come out okay.usually maybe should be changed to you hope

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaman1212 &raquo;</TD></TR><TR><TD CLASS="quote">you arent going to be able to do a compression test without the belt on i would put a new belt on and try again usually if you werent raping the engine the valves come out okay.usually maybe should be changed to you hope </TD></TR></TABLE>

That is why I suggested a leakdown test with the camshafts removed.

 

I thought these were non interfearince (sp) motors? Meaning if the belt snaps the valves are ok.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sick4g63 &raquo;</TD></TR><TR><TD CLASS="quote">I thought these were non interfearince (sp) motors? Meaning if the belt snaps the valves are ok.</TD></TR></TABLE>

OP never specifiied the engine. B18B, B18C1, B18C5, or swap.

 

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

OP never specifiied the engine. B18B, B18C1, B18C5, or swap.</TD></TR></TABLE>

are any of these engines non interference?

 

sorry b18b ls engine guys

 

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

are any of these engines non interference?</TD></TR></TABLE>

I thought that they all were with the exception of the swap. You could get lucky and have no valve fully extended at the break position.

 

the blet just shreddd bunch of teeth off i think it is the original one at 130000

 

this is what i've gotten out of this thread...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackccoupe &raquo;</TD></TR><TR><TD CLASS="quote">the blet just shreddd bunch of teeth off i think it is the original one at 130000</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackccoupe &raquo;</TD></TR><TR><TD CLASS="quote">no i htought it was broke but the belt just shreded a bunch of teeth off</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackccoupe &raquo;</TD></TR><TR><TD CLASS="quote">it must have shreded some teeth off i dont think the belt was ever replaced, </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackccoupe &raquo;</TD></TR><TR><TD CLASS="quote">k found out the timing belt shredded some of the teeth off and the cam gears are all outa whack how bad u think the head might be ?</TD></TR></TABLE>

anything else you need to know OP before you change that belt and comp test it

 

ok the #s are 35 90 35 90 lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sick4g63 &raquo;</TD></TR><TR><TD CLASS="quote">I thought these were non interfearince (sp) motors? Meaning if the belt snaps the valves are ok.</TD></TR></TABLE>

i believe non of honda's are.

however many toyota's are.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackccoupe &raquo;</TD></TR><TR><TD CLASS="quote">ok the #s are 35 90 35 90 lol</TD></TR></TABLE>

What numbers? Please tell me that you did not perform a compression test with a broken timing belt.

 

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

What numbers? Please tell me that you did not perform a compression test with a broken timing belt.</TD></TR></TABLE>

yeah. that would be in one of the worst things ive seen on h-t. if the timing belt was on, then that sucks bc all your valves are bent, at least on one side.

 

Honda engines ARE inteference, meaning the pistons CAN hit the valves if the crank or cam shafts spin independently of the other.

Toyota engine are NOT interference engines. Most American engines are not, either. If their belt (or chain) breaks, the engine just dies. The piston at TDC and the valves fully open still won't touch.