1999 Porsche Boxster Knock on start up

Porsche Boxster Problem
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Harsue

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Knock on start up
May 8, 2015 (4 years ago)
Engine has knock on start up when cold ,if restarted within two days all is ok leave three days knock is back sounds like a big end but only knocks on start up all ok when running and high or low revs I have had new timing chains fitted as this was suggested as the fault can you help

Car: Porsche Boxster
Year: 1999
Category: Running Rough, Starting & Power Loss
Recalls: Porsche Boxster Recalls
More: Porsche Boxster Problems
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whittingehame
Fixes: 12,197
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May 8, 2015 (4 years ago)
I usually found that timing chains caused more of a rattle than a knock . Symptons you describe in my opinion would be more oil pump related .It would be interesting to check oil pressure on start up after 3 days with master gauge .But I am no expert on the Boxster .
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