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Anzani Pilot Flywheel
Posted: Wed Apr 04, 2012 1:06 pm
by StephenRT
I need to remove the flywheel on this motor in order to replace the HT lead.
The Seagull method i.e. holding the flywheel up while hitting the crankshaft nut just won't work, the flywheel won't budge.
There are no obvious signs of rust but I have nevertheless soaked the crankshaft taper with penetrating oil.
I am thinking of making a puller secured to the flywheel using the four starting pulley threaded holes but before doing this wonder if anyone has any other ideas, apart from a bigger hammer.
Steve
Re: Anzani Pilot Flywheel
Posted: Fri Apr 06, 2012 4:18 am
by Collector Inspector
I have had the bad experience of bending the threaded section on a Pilot crank a long time ago now. Same problem as you have so made a puller along the same lines as you are contemplating. The threaded end is so long and thin it bent like a piece of wet spag. The powerhead remains in a box to this day. Make sure when you use a hammer that you indeed suport the flywheel only. Try suspending from a rafter with rope through the flywheel inspection holes then clout it as per Seagull method. Sometimes a wheel just gets ones goat for ages and patience is required.
Good luck
B
Re: Anzani Pilot Flywheel
Posted: Fri Apr 06, 2012 7:44 am
by StephenRT
Thanks for your reply Bruce. I think that the reason the Seagull method does’nt work is because there is virtually no end float on the crankshaft of the Pilot.
I did try suspending through the flywheel access holes from the garage roof but I think that there was too much give in the system for the hammer blow to be effective.
I’ve now removed the flywheel using a three legged puller which all the pundits warn you against using. I heated the flywheel boss with a heat gun first and tightened the puller just a little more than hand tight.
One whack with the hammer and the flywheel became loose with no damage done.
Steve
Re: Anzani Pilot Flywheel
Posted: Fri Apr 06, 2012 8:13 am
by Collector Inspector
Good Work Steve!
Now, the question ......... "Why did you want it off?"
Post some Pics, we love pics.
B
Re: Anzani Pilot Flywheel
Posted: Fri Apr 06, 2012 1:10 pm
by StephenRT
Bruce.
You probably know that HT lead is connected to the HT output wire from the coil by means of this brass collet with a grub screw (arrowed red) which is located within the black insulated post.
The thread in the brass collet was stripped and I needed to remove the flywheel in order to make and fit new one.
The Seagull removeable HT pickup is a a far better arrangement I think.
Steve