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i know you cannot hear it on the 1st video but i can in the distance.On 2nd it actualy sound not as one but 2 noises ..
I do not know the history of the engine but i have heard this sounds before.
One of my friends in LA very good 911 mechanic was chasing this problem ended up taking the engine (after rebuild),apart. Heating the pistons and only after this he found the wrist pin loose in one of the pistons.Mind you the measurements cold all was perfect..So when cold no noise only after warm engine..
Ivan
maybe some other engine re-builders here will chip in another idea
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1985 911 with original 502 191 miles...808 198 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.
Last edited by proporsche; 06-30-2024 at 11:30 AM..
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