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#551692 - 07/07/14 2:48 pm main timing pinion T140E  
Joined: Jul 2010
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MalRed Offline
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Herts UK
Fitting this back tonight. It seems an extremely tight fit over the crankshaft end. Is it normally this tight? I see reference to 'drifting' it on, mid drifting or quite severe?? Any tips / advice welcome. Cheers.

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#551742 - 07/07/14 8:20 pm Re: main timing pinion T140E [Re: MalRed]  
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NickL Online content
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Aus
Warm it up in a tin with some oil in it or with a heat gun, about 80 deg c.
it should be a good fit.



#551753 - 07/07/14 8:46 pm Re: main timing pinion T140E [Re: MalRed]  
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Pete R - R.I.P. Offline
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Vic. Australia
According to the manual, it should have a maximum of 0.0005" interference fit.
It can be as loose as 0.0003" clearance, and still be OK.
Measure it. If it's too tight,you could polish the bore with a roll of emery paper to loosen it some.

#552059 - 07/09/14 2:42 pm Re: main timing pinion T140E [Re: NickL]  
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MalRed Offline
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Herts UK
Thanks. NEVER do work at night after a busy days work. Took your good advice and heated it up, picked it up with mole grips on the collar, it slipped on a treat. As it was cooling and gripping the crankshaft i looked at and saw I had put it on the wrong way round, idiot.
So now I have the flat side hard up against the case, no room for a puller, tried heating it up to pull off but the crank acts as a heat sink now so no budge!

I think I am faced with setting up the dremel, cutting through by the slot so I work towards the woodruff key.

I can't think of any other fix unless you guys can

#552061 - 07/09/14 2:57 pm Re: main timing pinion T140E [Re: MalRed]  
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limeyrider Offline
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gastonia .. NC
Can you use a gas torch with narrow flame to heat directly on the hub to quickly heat it without the crankshaft sucking away the heat?.
Good luck.

James.

#552062 - 07/09/14 3:03 pm Re: main timing pinion T140E [Re: MalRed]  
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kevin large Offline
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devon
HOW FAR TOGETHER IS THE MOTOR IF ITS JUST THE CASES TOGETHER AND NO BARRELS SEPERATE THE CASES SUPPORT THE TIMING SIDE CASE ON BLOCKS OF WOOD PUT SOMETHING SOFT UNDER THE CRANK TO CATCH IT GET A GOOD BLOW TORCH HEAT THE PINION QUICKLY AND TAP THE END OF THE CRANK THROUGH THE PINION USE A PIECE OF ALLOY TO PROTECT THE END OF THE CRANK

#552074 - 07/09/14 4:53 pm Re: main timing pinion T140E [Re: limeyrider]  
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MalRed Offline
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Herts UK
Good idea, i will pursue that one

#552076 - 07/09/14 4:54 pm Re: main timing pinion T140E [Re: kevin large]  
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MalRed Offline
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Herts UK
Totally, barrels on, cyl head on.

#552215 - 07/10/14 5:08 pm Re: main timing pinion T140E [Re: MalRed]  
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MalRed Offline
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Herts UK
Any tips on sourcing a new pinion, don't see many out there. T140E main crank pinion gear.

#552237 - 07/10/14 7:37 pm Re: main timing pinion T140E [Re: MalRed]  
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NickL Online content
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Aus
Try LP Williams



#554202 - 07/22/14 4:48 am Re: main timing pinion T140E [Re: MalRed]  
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MalRed Offline
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Herts UK
All done, my amazing engineer Roger at Full Bore Watford, welded a nut to a washer, the washer to a tube, then the tube to the offending pinion. He effectively created a 'puller' and off she came. I will try to upload a pic next.


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