Flywheel bolt spacing, unequal



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Flywheel bolt spacing, unequal

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12-20-2017, 08:57 AM

AC Ventura AC Ventura is offline

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Join Date: Feb 2016

Location: North of London, UK

Cobra Make, Engine: AC Cars Limited, 302 EFI

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Flywheel bolt spacing, unequal

Hi Guys,

Okay I'm just about to test attach to my all new, all aluminium 427 FE, the flywheel, clutch and trans for the first time. The engine is neutral/internally balanced so therefore the flywheel is plain and has no bolt on weight.
I've noticed that the spacing for the bolts that attach the flywheel are on the same PCD but not equally spaced. Is this simply to index the flywheel, just in case the engine was externally balanced and needed the weight? Does having the bolts unequally spaced, when using a plain flywheel, not cause vibration? I must say there's a small drilling on the back side, which maybe is to counterbalance it ??
Also if anybody has a torque setting for the clutch pressure plate bolts (Mr Gasket #911 5/16") I'd be most grateful. I believe the flywheel itself is 75 ft/lbs

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