Brake drum repair

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Robert Luland
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Brake drum repair

#1

Post by Robert Luland » Sat Mar 12, 2011 9:37 pm

I got a hydraulic oem brake drum that is mint except the lug threads a striped. Anything keep me from using a Heli-Coil or cert to repair them? Does anyone have a better idea? Thanks, Bob L



RUBONE
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Re: Brake drum repair

#2

Post by RUBONE » Sat Mar 12, 2011 9:40 pm

H-D sold oversize lug bolts for that. But i see no reason that a well done heli-coil job won't work. The threads more often are ruined by running loose than overly tight!
Robbie

Robert Luland
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Re: Brake drum repair

#3

Post by Robert Luland » Sat Mar 12, 2011 9:46 pm

Was the over sized lug one that you would retap for?

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Re: Brake drum repair

#4

Post by RUBONE » Sat Mar 12, 2011 9:49 pm

Yes, it was.
Robbie

Robert Luland
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Re: Brake drum repair

#5

Post by Robert Luland » Sat Mar 12, 2011 10:27 pm

Was it a special tap or a jump to 7/16-20.

hydra74
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Re: Brake drum repair

#6

Post by hydra74 » Sat Mar 12, 2011 10:41 pm

Colony sells them with oversized thread 7/16"-20

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Re: Brake drum repair

#7

Post by john HD » Sat Mar 12, 2011 11:42 pm

bob,

you can identify the factory oversized lugs by the groove machined on the outside. makes it easy not to mix them up.

john

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Re: Brake drum repair

#8

Post by Cotten » Sun Mar 13, 2011 6:03 pm

John!

I have a handfull with the machined groove that are not oversize.
My Palmer's isn't handy, but I believe those were pre-War productions.

Honestly, I have never encountered an over-sized lug.
I would opt for a thread insert repair.

.....Cotten

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Re: Brake drum repair

#9

Post by 58Tin » Mon Mar 14, 2011 2:24 am

the part # I have for the oversize lug is 43531-35. 7/16-20 as opposed to the 3/8-20 std. size

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Re: Brake drum repair

#10

Post by PanPal » Mon Mar 14, 2011 5:31 pm

Check carefully that you do not have a crack from this lug hole. If it really is only the threads you should be fine repairing it.

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