I just installed some HKS 280s last week. Car has been running great since last thrusday. Today, I was doing some logs, and right after I left off the gas and started braking from doing a 3rd gear pull from 2500 - 7500, the car started making some Weird noises.

I get out and it sounded like it was coming from the valvetrain/cam gears. I turn the car off, and the timing belt is so loose that I was able to pull it off the gears!!

I had the car towed home, and plan on taking a look tonight.

Any ideas what would cause the timing belt to to that??? I have one of those Greddy Kevlar belts too, so it didn't break or anything.


Sucks as the car has been running great, in fact I was soo happy with how much power i gained from jumping to the 280s from 272s.

Any help is greatly appreciated.

 

timing belt tensioner?

 

do you have adjustable cam gears(?), loose tensioner, etc.

 

timing belt tensioner?

 

Yes, I have adjustable cam gears, but they are fine. That was the first thing I checked.

Can the tensioner go bad?

 

Did you rush the turning of the tensioner or took your time of 1-2 sec pause per turn?

 

Is there a possibility that the pistons meet the valves? I'm just hoping nothing major happened as this is my DD.

 

I did it somewhat slowly like the EvoMoto how-to explained.

I also turned the car over by hand (crank) two times to take the slack out. And, I've been DDing this thing for almost a week?

 

wow. your lucky it didnt break. All i could think of is that your tensioner went loose.

 

ugh, hate to hear about this...

on a lighter note it may be time to install the Danger to Manifold gauge

 

Yeah I'm gonna order a new tensioner/pulley, then hope the valves didn't kiss the pistons....

 

my tensioner gave way last year.... i shut the car off imediatly, even with that my valves hit the pistons..
heres the damage:

broken valves
head was tooo damaged to be saved
cylinder walls scored, had to be over bored
pistons destroyed
valve peices went through the turbo- trash
cam shafts destroyed due to contact with broken valve stems

my new motor is just about finished being put back togther,, but a broken tb tensioner cost me alot of money

hope you find out it was something simple and you dont run into what i did.
good luck

 

LOL.

 

lol I was hoping you'd be able to laugh at the situation

Hopefully you catch a break and everything is fine when you get it back together but if not, BR 2.0 + Stage 3 head ought to cure your blues

 

Were you able to pull the valve cover off yet? If there was any damage, it may show once you get a look at the cylinder head. That way you know what you are working with if you decide you have to replace some damaged parts or components.