Valve noise on #8
Thread Starter
Instructor
Joined: Jul 2003
Posts: 217
Likes: 1
From: Atlanta GA
Valve noise on #8
After rebuilding my '93 LT-1 I had a slight ticking from the # 8 lifter. I assumed (bad word) that I just had a little bit of adjusting to do on the rocker arm. Curiously the ticking would go away after the car warmed up.
The noise has gotten worse now that I have about 9,000 mile on it. The ticking is louder and there is a putt-putt sound coming from that side of the engine until it warms up.
Do I just have a valve adjustment issue, a collapsed lifter, or did I burn a valve. And yes, I know I should have fixed it sooner.
BTW, everything except the crank, rods and block were replaced during the rebuild.
Thanks,
Larry...
The noise has gotten worse now that I have about 9,000 mile on it. The ticking is louder and there is a putt-putt sound coming from that side of the engine until it warms up.
Do I just have a valve adjustment issue, a collapsed lifter, or did I burn a valve. And yes, I know I should have fixed it sooner.
BTW, everything except the crank, rods and block were replaced during the rebuild.
Thanks,
Larry...
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
First thing is to pull that cover and have a look see. Guys have recently reported on other forums of noises like yours that turned out to be diaster caught JUST IN TIME.
If you don't SEE anything, then check the preload. If it's OKAY too, time to break out the tools. Valvetrain failures can be unforgiving -- Read that $$$
Hope this helps.
Jake
If you don't SEE anything, then check the preload. If it's OKAY too, time to break out the tools. Valvetrain failures can be unforgiving -- Read that $$$
Hope this helps.
Jake
Thread Starter
Instructor
Joined: Jul 2003
Posts: 217
Likes: 1
From: Atlanta GA
First thing is to pull that cover and have a look see. Guys have recently reported on other forums of noises like yours that turned out to be diaster caught JUST IN TIME.
If you don't SEE anything, then check the preload. If it's OKAY too, time to break out the tools. Valvetrain failures can be unforgiving -- Read that $$$
Hope this helps.
Jake
If you don't SEE anything, then check the preload. If it's OKAY too, time to break out the tools. Valvetrain failures can be unforgiving -- Read that $$$
Hope this helps.
Jake
Larry...
Melting Slicks
Joined: Sep 2008
Posts: 2,376
Likes: 111
From: Cherokee National Forest TN
Worn valve guides will sound exactly like a lifter going bad.
While you have the valve cover off rotate the engine to get both valves on the cylinder in question in a closed position.
Use a large screwdriver inside the valve cover gasket rail & apply/release pressure to the spring retainer. Watch for movement @ the valve stem.
While you have the valve cover off rotate the engine to get both valves on the cylinder in question in a closed position.
Use a large screwdriver inside the valve cover gasket rail & apply/release pressure to the spring retainer. Watch for movement @ the valve stem.
