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crankshaft pulley center bolt on B farmall

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Curt In Minneso

07-22-2007 16:22:03

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In order to use my new engine stand I bought for my B farmall project (where I need to replace bearings in the transmission and any thing else), I see I need to pull the crank shaft pulley. I assume there is a threaded hole at the center so one can pull on a bolt. I not sure I am going to get front end off to inspect it tonight but would like to buy the bolt tomorrow when I go to town. Does anybody have an idea about the size of this bolt and if it is fine threaded? I picked up a new used torque tube since the original was brazed. So I need to take the engine off anyway while replacing the transmission bearings. Thanks for your help. Curt

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rnicholas

07-23-2007 18:48:14

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Re: crankshaft pulley center bolt on B farmall in reply to Curt In Minnesota, 07-22-2007 16:22:03

Getting it back on can be as hard as taking it off. On my 100 I had a 10/1000th difference between the shaft and the pulley. That's too much to overcome with a little sandpaper and some grease. I put that sucker in the oven at 400 degrees for an hour and tapped it right on with a pipe and 3 lb hammer.

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El Toro

07-23-2007 04:00:05

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Re: crankshaft pulley center bolt on B farmall in reply to Curt In Minnesota, 07-22-2007 16:22:03

I would heat that damper pulley in an oven to about 250 degrees F prior to installing it. Don't tighten the bolts in the timing gear cover until you have the pulley on. Take a good look at the hub on the pulley for any wear from the old front seal. Here's what Bigdog made for pulling Cub pulleys. Hal

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Cedric

07-23-2007 03:00:44

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Re: crankshaft pulley center bolt on B farmall in reply to Curt In Minnesota, 07-22-2007 16:22:03

I don't know about the B, but the hole in the end of my '51 Super C is tapped �" N.C. I used a piece of threaded rod in it to draw the pulley on to the shaft when re-assembling it. Sid.

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Keith-OR

07-22-2007 21:37:35

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Re: crankshaft pulley center bolt on B farmall in reply to Curt In Minnesota, 07-22-2007 16:22:03

Curt, this is what I made to remove pulley from the boy's SC. I used a porta power with my setup, but I loaned puller to a friend and he used a hydraulic jack. He had jack that would work laying on it's side. HTH

Keith & Shawn

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HicksDale

07-22-2007 19:15:27

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Re: crankshaft pulley center bolt on B farmall in reply to Curt In Minnesota, 07-22-2007 16:22:03

Curt,

The picture by red dave is what I've done to remove the pulley. I put an old socket in first for the puller to ride against. I think there is threads in the end of the crankshaft. There was on a cub, not sure about the B.

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Curt in Minnesota

07-22-2007 21:30:20

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Re: crankshaft pulley center bolt on B farmall in reply to HicksDale, 07-22-2007 19:15:27

Dale, good to hear from you. The reverse electro plating worked well! I just got in from the shop and got it pulled. Next to take the engine off. Thanks all for the help again.

Curt

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billde

07-22-2007 19:51:06

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Re: crankshaft pulley center bolt on B farmall in reply to HicksDale, 07-22-2007 19:15:27

Seems like that was how I got the pulley back on, a fine threaded bolt screwed into the crank. Then you remove the bolt as it interfered with the hand crank.

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Red Dave

07-22-2007 16:27:47

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Re: crankshaft pulley center bolt on B farmall in reply to Curt In Minnesota, 07-22-2007 16:22:03

I don't know what you are expecting to pull on, but this is a way to get the pulley off without breaking it. There are no threads in the end of the crankshaft.

Picture and short description of pulley removal process

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curt in minnesota

07-22-2007 16:40:34

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Re: crankshaft pulley center bolt on B farmall in reply to Red Dave, 07-22-2007 16:27:47

Thanks for the reply, I made a u shaped cut-out out of a 1/2 inch steel plate to pull on. That bearing splitter would work better and I have thought about getting one but will try plate first. Again thanks for the reply.

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VAJerry

07-22-2007 19:58:13

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Re: crankshaft pulley center bolt on B farmall in reply to curt in minnesota, 07-22-2007 16:40:34

Be careful putting it back on too. Was pressing mine on the Super a loud pop I didn't like took it off and behold:

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