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Author Topic: lister st1  (Read 317 times)

allycat

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lister st1
« on: June 04, 2020, 06:42:08 PM »
hi all having trouble removing the gear on the crankshaft as far as i can see it should just pull off have broke one puller any advice?

scott p

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Re: lister st1
« Reply #1 on: June 05, 2020, 06:37:00 AM »
Hello allycat
Yes sir those  gears are very much on there. They  pretty much are a shrink fit in that the manual calls for the gear to be soaked in boiling water before reinstalling . A strong puller is required three jaw is probably best. One thing you can try is too put a good amount of pressure on the gear with the puller then give the puller shaft head a good smack with a good sized hammer. Then apply more pressure to the puller. You can do that a few times to see if that will do anything but donít get carried away.

Another possibility once the puller has a good amount of pressure  on the gear some heat applied to the gear might start it coming off. HOWEVER too much heat and the crank will heat up as well. You donít want that.

Best bet is a good strong puller.

allycat

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Re: lister st1
« Reply #2 on: June 05, 2020, 06:42:02 PM »
thank you have got a puller on order didn't realy want to put heat on it but if needs be

scott p

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Re: lister st1
« Reply #3 on: June 05, 2020, 07:22:42 PM »
don't blame you as far as heat goes.

Willw

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Re: lister st1
« Reply #4 on: June 21, 2020, 04:47:50 PM »
I remove the bolts securing the bearing plate behind the flywheel. Flywheel, Bellhousing, Governor weight mechanism, Piston, rod and cylinder removed  of course.
Set the crankcase with crankshaft up in the press, supported outside the OD of the bearing plate. The crankcase will need to be elevated approximately 3" to allow the crankshaft and bearing plate to move downward.
Press the end of the Crankshaft only... Not the gear. I use a socket that is a bit smaller than the end of the crankshaft inside the gear, to press against.
The Crankshaft and bearing plate will come out the back of the crankcase, leaving the gear behind.
I use a 12 ton press for removal and installation of the gear.
Daily driver '97 GMC W4 tipper on WVO/Kerosene mix.
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