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Old 11-06-07, 06:40 PM   #21
iann41
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Default key puller

I am trying to make a key puller similar to the one in the picture. The only thing is the key on my engines protrude 5mm above the dia of the crankshaft so the hole on the 10mm steel plate would have to be 43mm dia.
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Old 11-06-07, 07:48 PM   #22
buzzy bee
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Hi

Can you not drill it at 43mm?

If not cut it with the oxy, or if you don't have access ask a garage etc.

Cheers :D

Dave
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Old 11-06-07, 08:44 PM   #23
ether823
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Default Key removal

Hi folks, any idea how to get the flywheel key out of this Lister D type I bought lately. The key is so well in that I cant get anything behind it. Pete

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Old 11-06-07, 09:26 PM   #24
buzzy bee
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Hi

Can you get any kind of grip on it?

Cheers

Dave
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Old 11-06-07, 09:36 PM   #25
gardnerman
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Hi
One suggestion is to drill a hole in the end of the key and tap a thread, with a long bolt and a thick piece of steel with a hole, use the slide hammer approach.
Shocking with a hammer and some heat first might help, there is a thicker section where the key is, there is a bolt clamping the key through this (I brightened your picture to see this), don't forget to at least loosen it.
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Old 11-06-07, 09:50 PM   #26
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How about trying to weld some sort of metal bar onto the key to give you better leverage to get it out :?:
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Old 11-06-07, 10:11 PM   #27
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If thats on a Lister D then the pully wheel has a plain non tapered key in it. To remove the pully wheel just unscrew the bolt then use a puller to slide the whole thing of the crank. A little WD40 can some times help once it starts to move.
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Old 11-06-07, 10:40 PM   #28
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The key on these is just to stop the pully spinning on the shaft unlike tapered keys that wedge a pully or flywheel to stop it coming off.
I'd loosen the bolt and get some chisels in between the pully and the flywheel.
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Old 11-06-07, 11:13 PM   #29
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Hi

If the key is not tapered, then loosen the bolt, soak in deisel or penetrating solution (Wd40 or alike) and get either some bars behind it or a crowbar and lever it off, if no good use a puller, if still no joy heat is the answer!

I have tried everything to get a taper twist drill out of a taper, but it was wedged with probably tens of tons of pressure, heat freed that!

Cheers

Dave
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Old 11-06-07, 11:59 PM   #30
ether823
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Thanks gents I`ll let you know what the outcome is. Pete
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