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Stripped rear caliper bleeder hole

  • Thread starter Thread starter seano
  • Start date Start date
S

seano

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The rear caliper outer bleeder hole on my '80 850g has pretty badly stripped threads. If I can't chase the threads, does anyone have any other ideas? Can I drill a larger hole and tap for a larger bleeder, or just start looking for another caliper?
 
I'm sure you can drill and tap for a larger screw but I wonder if the hassle is worth it. I would think you can find a used one easily enough and I'll bet there are guys here waiting to sell you one :)

Nice thing about these old crocks, there are still lots of parts around.

Good luck with it and let us know what you end up doing.

Spyug
 
seano said:
The rear caliper outer bleeder hole on my '80 850g has pretty badly stripped threads. If I can't chase the threads, does anyone have any other ideas? Can I drill a larger hole and tap for a larger bleeder, or just start looking for another caliper?
Click to expand...

I might have a spare rear caliper that will need rebuilding.
You could try going to another bleeder valve from something else, or you can drill it, and press in an aluminum slug, then drill and tap it again.
 
In the past, I've re-drilled many bleeders for friends who gorilla tightened them only to strip them later, they even sell kits at most auto part stores that come with the new tap, I've got a selection of used bleeders, some may be larger, pm me if you go this route, I'll mail a couple for you to try, let me know what size yours is initially, I'll see what taps match up to the bleeders I have, maybe the next size up will do.
 
Thanks Brent. For now I'm gonna try going up a size by drilling and tapping a new hole if I can't clean up these threads. Thanks Old School, I'll certainly pm you if I need a larger bleeder.
 
You can just tap a thread in there any size and whack a bolt in to seal it off. You can bleed the rear caliper very easily on just the one bleed screw.
 
Get it helicoiled and it will never give grief again.Pretty cheap and metric sets are commonly available.
 
Bottoming tap right??? So as not to mess up the meshing of the tip into the taper at the botom of the calipers hole..right?? Ive never had to do one. That tip seats in the taper to seal the screw off right?
 
Last edited:
Yes Chuck - right, right, and right. I was able to clean up the threads w/out having to drill a new larger hole.
 
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