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Can someone measure a 3 main flywheel?

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rjackson

Freshman Member
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I need to know the diameter of a 3 main or early 5 main flywheel. If someone has one handy could you measure the diameter including the ring gear? TIA
 
flywheel.jpg

12 1/8" to the outer edge of teeth.
10 3/4" where the ring gear slides on.
(This is a 1622 flywheel from a late MGA)
HTH
 
Early 5-main here measures the same.
 
Yes everything was the same diameter, with the MGAs, 3 main MGB and early MGB 5 mains, the diameter changed with the 4 syncro gearbox in 68. Note, while the diameter was the same on all the 3 main and early 5 mains, how they bolted to the crankshaft was not, some registered over the end of the crank and some did not.
 
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