, or till the next oil change....
Valve adjustment Different question
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Racer
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From: Ohio
Thread Starter
Racer
Joined: May 2013
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From: Ohio
I took a quart of oil out and put a quart of MMO in. I'm not convinced its a gummy lifter (only because of my level of luck) I think it's something more. But if it were a bad lifter, cam or spring wouldn't that affect the performance of the engine?
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Army
Not necessarily, I had a 327ci Camaro that had a tick in it for 6 months and I drove it daily until I could pull the intake and fix it. The only symptom was the annoying tick.
Do not discount the prior advice here that it might be an exhaust leak.
If it is definitely a lifter its not that big a deal to pull the intake and replace it.
Do not discount the prior advice here that it might be an exhaust leak.
If it is definitely a lifter its not that big a deal to pull the intake and replace it.
Last edited by Frankie the Fink; Jun 13, 2014 at 07:55 AM.
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Keep with the simple stuff first.
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With a small block Chevy, the simple stuff is always more likely to be the problem. Check for an exhaust leak with a cold engine, use the back of your hand as close to the manifolds as you can comfortably get to feel for the tell tail hot breeze. Exhaust ticks sound remarkably like a lifter tick.
A wiped cam lobe would not, to my way of thinking, go away with Marvel mystery oil & then come back. A bad lobe might tick & fade with rising engine temp and/or be masked by all the other noise but would eventually return louder and louder until the lack of valve movement presented itself as a performance issue.
Dan
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Racer
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From: Ohio
So I guess that could increase the likelihood that my issue is an exhaust leak. Other than stating a cold engine and feeling around the manifold for a leak is there another way to check?
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This gasket area was discussed on the NCRS discussion board some time ago and a poster recommended using a gasket sealer that withstands high temperature but I can't recall the brand, maybe someone here will remember.
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Army
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Racer
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From: Ohio
I went out and got one. Also I tightened up the exhaust manifold. When the engine is cold and until it get hot the tick is not there, when it reaches opp temp you can hear it, clearly
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The gaskets are easy. Just cut a 3/8" slot in the bottom, loosen the manifold and drop the gaskets in. No need to completely remove them.
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Army
Hmmm...usually an exhaust leak goes away when things heat up and expand and seal up gaps but you can clearly hear it cold. I'd run the car a few more days with the MMO anyway and if the tick doesn't go away, or, you ABSOLUTELY confirm its an exhaust leak you can do as MikeM says. Its a 1/2 hour job and yes, you do not have to remove the manifolds.
If you're lucky you won't have those French locks to deal with.
If you're lucky you won't have those French locks to deal with.
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