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08-11-2019, 06:35 PM | #1 |
Senior Member
Join Date: Nov 2013
Posts: 309
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fly wheel filling
hello 2 questions
1. prior to removal i marked the relation of fw to crank but lost the mark-- i see 5 hash lines on the inside of fw---are these for aligmnent and if so do they indicate the top? i see no corresponding mark on crank end 2. there is a redrilled for pressure plate hole in fw which ran off and broke thru to the edge--i would like to fill this with weld and re-tap a. is fw made of cast iron? i don't know how to use nickle rod- would it weld with 6013 rod? b. if it is cast iron, is it braze able? c. hole is not amenable to helicoil and i know braze is soft but better than nothing thank you |
08-11-2019, 07:44 PM | #2 |
Senior Member
Join Date: Nov 2010
Location: Sedro-Woolley, WA
Posts: 1,023
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Re: fly wheel filling
Use a Helicole. I would not braze/weld on any flywheel. You do not want to set up any stresses in the metal with your heat.
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08-11-2019, 08:24 PM | #3 |
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Join Date: Aug 2010
Posts: 260
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Re: fly wheel filling
The fw to crank can go 2 ways 180* apart. The fw is cast iron, don't use 6013 the weld can be so hard that you cant drill or tap it, this I know, don't try to braze, it would take to much heat. Find another fw! If you are determined to use this fw, use a milling machine with a 4 flute end mill to find original center, then drill & tap. You could tap this hole 3/8" 7/16"or 1/2", thread in a piece of all thread with jb weld, then drill & tap 5/16 fine
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08-12-2019, 08:19 AM | #4 |
Senior Member
Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,516
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Re: fly wheel filling
Don't bother filling the hole. If I were balancing the flywheel, the machine will pick-up on the 'light-side balance' of the flywheel and I would drill on the opposite side 180° to compensate.
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08-12-2019, 08:31 AM | #5 |
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Join Date: Nov 2013
Posts: 309
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Re: fly wheel filling
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