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This morning I started up my 996 and I had a small ticking noise coming from the driver side of the motor when running. It sounded like a small lifter tap, like when there is not enough oil in the motor. My oil level is fine, however when I reved the motor is got faster as I reved. I had an issue sort of like this years back. I had a fab speed muffler come apart inside and make a ticking noise.

Any help from you Loren would be greatly appreciated

Thanks,

Tony

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:welcome:

Possibly a sticking lifter if it changes with RPM changes.

Otherwise it is likely exhaust related.

Does a stickey lifter cure itself? It's a 2000 with 12,500 miles that isn't driven daily. Could this be the cause?

Thanks Loren,

Tony

Edited by badapag
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It's all good Loren :) Came home today with temp in mid 80", fired her up, no noise. I guess I really never listen for it. It stood out this morning, although we have been having some 50 degree mornings in the summer which is a bit odd.

All is well :renntech:

Thanks for the welcome

Tony

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  • 1 month later...

Loren,

After tracking my '02 C4S, I noticed a ticking sound also...almost sounded like something like a muffler bracket was loose. As I rev the engine, the noise goes away. It sounds like the engine, not a bracket. Oil was just changed; 0w40 Mobil 1.

Thanks

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  • 1 month later...

I hope you are right. My 99 C2 996 man. had a ticking noise when warm - thought to be lifters- lifters rt. bank replaced - no change- turned out to be #5 gudgen pin failing - discovered by cutting fuel to cylinders in turn to cut load. Rare but known amongst Porsche specialists. Car had done 73klms.

Tear down revealed other gudgeons not far behind.

#5 cylinder ovality was way outside tolerance (but oil consumption only 250ml every 7000klms!)- needed new cylinder, could not be bored to too thin - off to LN Engineering for their nickies upgrade. This all started late June. Yet to get car back. Couldn't put std. gudgeons back in. Fitting X51 sump. Oil changed inside recommedations. Tracked twice. Fragile things these M96 engines. Upgrading with LN intermediate shaft , billet cam tensioner (big wear on original at only 73klms, or 42k miles!), full flow oil system (IMHO oil system or oil quality has failed the engine in my case - original fill brand), higher quality gudgeons( gudgeon failure - you are kidding me...), JE 3.6ltr pistons, but stock rods. Motor will be new front to back.

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