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Old 04-01-2021, 06:46 PM   #1
Paul Bjarnason
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Default Removal of two-piece crank pulley

In order to replace a two-piece crank pulley with a billet steel crank pulley, I want to remove the two-piece crank pulley from my '29 Tudor's crankshaft. The motor is in the car. I can't get the second part, which is the sleeve on the crankshaft not the pulley itself. I have tried heating it a bit with a heat gun and clamping on some Vice Grips, to no avail. I would appreciate suggestions -- other than taking the motor apart. I have squirted lubricant on it, but it doesn't want to budge -- it seems like it should just pull off. This is a newly rebuilt motor, which has never been run.
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Old 04-01-2021, 07:22 PM   #2
J Franklin
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Default Re: Removal of two-piece crank pulley

Why do you want to remove the set-up it has?
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Old 04-01-2021, 07:26 PM   #3
alexiskai
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Default Re: Removal of two-piece crank pulley

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Why do you want to remove the set-up it has?

Described in detail here:

https://www.fordbarn.com/forum/showthread.php?t=293979
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Old 04-01-2021, 08:12 PM   #4
Paul Bjarnason
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Default Re: Removal of two-piece crank pulley

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Why do you want to remove the set-up it has?

I don't trust the two-piece cast iron unit to hang together. Since I already have almost $10K in this rig, I think it's reasonable to invest less than $200 to ensure the crank pulley does not come apart.
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Old 04-01-2021, 08:27 PM   #5
McMimmcs
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Default Re: Removal of two-piece crank pulley

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Originally Posted by Paul Bjarnason View Post
I don't trust the two-piece cast iron unit to hang together. Since I already have almost $10K in this rig, I think it's reasonable to invest less than $200 to ensure the crank pulley does not come apart.
Why didn’t the rebuilder change it ?
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Old 04-01-2021, 09:16 PM   #6
kawagumby
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Default Re: Removal of two-piece crank pulley

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I'd try loosening the pan just at the front enough to reduce the pressure it exerts on the seal. Using a modern seal type, right?
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Old 04-02-2021, 09:31 AM   #7
nkaminar
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Default Re: Removal of two-piece crank pulley

Paul,

Try welding a collar on the end and using a puller. You may have to make the collar if you cannot find one in your junk drawer that will work.
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Old 04-02-2021, 10:57 AM   #8
kawagumby
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Default Re: Removal of two-piece crank pulley

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Paul,

Try welding a collar on the end and using a puller. You may have to make the collar if you cannot find one in your junk drawer that will work.

Along the same line of thinking...you could also carefully glue with JB Weld or similar or spot-weld the pulley and collar together ...that should do the trick to get enough force to remove. Still loosen those front pan bolts tho'. I have that split pulley setup on my engine, and I noticed as soon as I tightened the the pan to the timing cover, that inside collar was very tightly bound even tho' the seal was the centering piece - I was worried it was too tight, but it works fine with no leaks (lots of grease during assembly). The pan/timing cover recesses weren't designed for a modern seal, and the two are difficult, if not impossible, to line up as a perfect circle, so can exert some uneven pressure on the seal which likely makes a tight fit on the collar.


pulley1.jpg

Last edited by kawagumby; 04-02-2021 at 11:19 AM.
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