crankshaft nut size

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Joined
Mar 22, 2012
Messages
23
Location
New Jersey
what size is the big front nut on the crankshaft? Trying to unsieze my engine.
E8696D24-1D45-469E-A664-E77B0FCF20A9.jpeg
nut on the crankshaft? Trying to unsieze my engine.
E8696D24-1D45-469E-A664-E77B0FCF20A9.jpeg
 

Steamer

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Jul 20, 2009
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1,971
Location
Miami, FL
46mm or 1-13/16"
 

Steamer

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Jul 20, 2009
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Miami, FL
I don’t know if all flywheels are alike but, when I recently took off my crank nut, I went underneath to jam some wood wedges to lock the flywheel in place. I noticed some holes drilled into the edge of the flywheel I assume for balancing. Well, a 7/16” x 6” long hex bolt with the head cut off fit just right and locked the flywheel against the bellhousing.

Crank Hold.jpg
 

fjc-man

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Mar 21, 2014
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Commerce City, Colorado
If you want to get the rest of that air pump check valve off the air rail, get a torch set and make that hex collar glow to get it off. Wouldn’t hurt to warm up the fittings on the nozzles before giving them a twist.
 

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