C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ticking Sound/Header Gaskets

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Old Jul 12, 2015 | 07:52 PM
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Default Ticking Sound/Header Gaskets

I've had this ticking sound on the passenger side of the engine for a few weeks now. I'm pretty sure it's an exhaust leak. When you first start the car there is even a small amount of smoke for a good 15 seconds on the passenger side around the headers. The ticking also increases with engine RPM. I'm assuming its the gasket that's leaking and not the header itself. I have a Fel Pro gasket kit which I used the gaskets for the throttle body and runners, but it also came with exhaust gaskets. Will this work with Hooker 2151 headers? Summit has a set of gaskets for the headers, but I'm curious as to if the ones I have will work. Thanks!
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Old Jul 12, 2015 | 09:30 PM
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Well you can go about this 2 ways, remove the bad exhaust gasket and compare the exhaust ports or you can check the internet on the Fel pro gasket set model # and see it matches your car. My Fel Pro exhaust gaskets were not a one piece design but 3 pieces on each side. Not the easiest to install.
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Old Jul 13, 2015 | 12:38 PM
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Originally Posted by HAD2HAV2
Well you can go about this 2 ways, remove the bad exhaust gasket and compare the exhaust ports or you can check the internet on the Fel pro gasket set model # and see it matches your car. My Fel Pro exhaust gaskets were not a one piece design but 3 pieces on each side. Not the easiest to install.
Turns out the gaskets I have in the kit won't work. I ended up getting the Fel Pro 1406 Gaskets.
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Old Jul 13, 2015 | 08:08 PM
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It definitely sounds like an exhaust leak. Have long have the headers been on the car? Normally the bolts will need to be re-torqued at some point after install. I'd try tightening the bolts before I did anything else.
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Old Jul 13, 2015 | 08:40 PM
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Default Ticking Sound/Header Gaskets

Originally Posted by TA
It definitely sounds like an exhaust leak. Have long have the headers been on the car? Normally the bolts will need to be re-torqued at some point after install. I'd try tightening the bolts before I did anything else.
They have been on for about 8 years. I re-torqued them but no luck. Thanks for the reply.
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Old Jul 13, 2015 | 09:15 PM
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An easy way to locate an exhaust leak - Get yourself about a 3 foot piece of heater hose or something of similar size and flexibility. With the engine running, hold one end to your ear and then probe around the exhaust manifold with the other end. It'll be very obvious when you come near the leak.
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Old Jul 13, 2015 | 09:28 PM
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Fel Pro makes a single / one side header gasket with the curls on the end to rest on the 2 outer exhaust header bolts. Just remove all the inner bolts and drop the new one in. Easier said than done I know.
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