Engine noise now and then

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Aug 13, 2004 | 02:44 AM

vttedrm

Thread Starter

Safety Car

Joined: Jan 2004

Posts: 3,529

Likes: 1

From: Sherwood Park Alberta

Engine noise now and then

I've got his ticking noise coming from my engine but only after I reach about 2000 rpm. Idling you don't hear anything. And at 3000 rpm it's like a train on the tracks."..tic tic tic / tic tic tic / tic tic tic.../.

Logic says it can't be drivetrain since it only starts over a certain rpm? Any ideas? It's so dam* annoying!

Thanks.

Last edited by vttedrm; Aug 13, 2004 at 02:49 AM.

Aug 13, 2004 | 09:19 AM

Steve's74

Burning Brakes

Joined: Feb 2004

Posts: 958

Likes: 1

From: In the Beautiful Shenandoah Valley of VA

Sounds like either an exhaust tick or a hydraulic lifter ticking. It's possible that a rocker arm nut has backed off enough that the lifter can no longer compensate, adjustment may be needed.

Aug 13, 2004 | 09:22 AM

Boofers

Drifting

Joined: Nov 2002

Posts: 1,665

Likes: 1

From: Ontario

Quote:

Originally Posted by Steve's74

Sounds like either an exhaust tick or a hydraulic lifter ticking. It's possible that a rocker arm nut has backed off enough that the lifter can no longer compensate, adjustment may be needed.

that it could be an exhaust leak. Check your header gaskets for a blow-by.

Aug 14, 2004 | 02:28 AM

vttedrm

Thread Starter

Safety Car

Joined: Jan 2004

Posts: 3,529

Likes: 1

From: Sherwood Park Alberta

The exhaust system is about 2 months old (real duals with headers). Wouldn't it tic at idle also if it was an exhaust leak? I've tightened the bolts. It does seem to come from underneath the car. Thanks guys. I'll check both options.

Aug 16, 2004 | 10:12 AM

Boofers

Drifting

Joined: Nov 2002

Posts: 1,665

Likes: 1

From: Ontario

Quote:

Originally Posted by vttedrm

Wouldn't it tic at idle also if it was an exhaust leak? I've tightened the bolts. It does seem to come from underneath the car. Thanks guys. I'll check both options.

I have experienced blown header gaskets at the manifold as well as at the collector. I tried tightening the bolts and it didn't fix it until I replaced the gaskets. As soon as I pulled the bad gasket out I saw right away where the leak was. I found the gaskets that came with my headers did not last that long. Now I have Ultraseal gaskets on, time will tell how long they last...

As for the lack of tick at idle I had the same thing, it was like it only ticked when the engine was under load. Not ticking at idle probably means its not valvetrain related which is good. Changing gaskets is easy, a good thing to rule out before you dig into your engine.

I have had my dual stainless exhaust for just over a year now. I had exhaust leaks where the cat met the pipe. I could hear it, I could see the black residue on the pipe and I could feel the exhaust leak with my fingers with the engine running. I had to tighten the clamps. Good Luck!

Aug 16, 2004 | 10:28 AM

PRESSURERAT

Pro

Joined: Oct 2003

Posts: 565

Likes: 0

From: I'm bleeding, making me the victor!

I had my car do something very similar once........I was used to the sound of leaking headers and was sure that's what the problem was. It was dark out and curiosity got the best of me, so I opened the hood to have a look. What I found was a bad plug wire arc-ing to a header bolt. I was running a high energy ignition system at the time. Man was it ever loud!

Aug 17, 2004 | 02:22 AM

vttedrm

Thread Starter

Safety Car

Joined: Jan 2004

Posts: 3,529

Likes: 1

From: Sherwood Park Alberta

Thanks for the help guys. This forum is great! I'll pick up some gaskets and check it out. I'll look into the plugs as well.

Thanks again.

Aug 17, 2004 | 01:21 PM

stingraymaniac

Le Mans Master

Joined: Jun 2003

Posts: 5,135

Likes: 71

From: Umeå Sweden

mine was like that last weekend when i had been at the track dragracing
really loud ticking noise around 2000 rpms and up.
turned out too be a header gasket.