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Joined: Jan 2008
Posts: 360
B
'Bolter
'Bolter
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Joined: Jan 2008
Posts: 360
need some help. have a frozen 51 235, was orig a powerglide but was converted to a 3 spd man. got the clutch out (boy that was fun) and now i need to get the flywheeel off to disassemble the bellhousing. are they all bolts or is it a combo of bolts and nuts/studs holding the FW? what size should they be? they appear to be 11/16 but just don't want to grab decently. are they standard thread or are they left handed? what are the small tin like bridges between the bolts?
the only info i have on this motor is a 40-54 chiltons repair book and that has been good to keep my head off the garage floor while removing the clutch!!

thanks for any help again.

big ed


"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
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Posts: 7,438
Extreme Gabster
Extreme Gabster
Joined: May 2001
Posts: 7,438
The "tin like bridges" have ears that are bent around the bolt heads. You'll need to bend them down before you can get a wrench on the bolts. The bolts are standard right hand thread.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
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'Bolter
'Bolter
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ohhh, the devil is in the details!!! thanks cletis


"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
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A
'Bolter
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bigedpa,

Use a 6 point socket to remove them. The bolts have a shallow head so it helps if you grind the end of the socket down to a flat. This allows it to bite the entire bolt head.

If you round a bolt head it will ruin your day.

Stuart

Joined: Jul 2007
Posts: 461
H
Shop Shark
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There is also a dowel pin in the crankshaft. The pin is for alignment. After you have the bolts out, you might have to thump the flywheel with hammer to loosen it on the pin and crankshaft. Be careful how you handle it- its heavy and the teeth are sharp- or they should be. You probably will have to wiggle the flywheel to get it off the crankshaft, because the fit is pretty snug.

While you are looking around the crankshaft, check the pilot bushing for wear. The inner bore should be smooth, like the bearing surface on the transmission clutch shaft.

Harvester

Joined: Feb 2008
Posts: 20
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Apprentice
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Posts: 20
Originally Posted by Harvester
While you are looking around the crankshaft, check the pilot bushing for wear. The inner bore should be smooth, like the bearing surface on the transmission clutch shaft.
Harvester

I watched a fella take a pilot bushing out of a crankshaft once.
He squirted a bunch of grease into the pilot bearing, filling the crevice behind the bushing. He found a 3/8" extension that just fit inside the bushing. Wrapping a rag around the extension and holding it close to the flywheel, he gave the end of the extension a good whack with a hammer. The hydraulic pressure popped the pilot bushing out slicker than snot.

Chris


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