Banjo Housing Repair

[Ken/Alabama]

Any way to repair a couple of stripped bolt holes in a banjo housing. ?

[1939 pickup truck]

Hi Ken,
This should help stir the pot to get better responces, better advise reply..

a) drill & tap to next size up
b) Helicoil kit
c) Weld in threaded stud & use a nut
d) chewing gum ..... ; < )

[ford38v8]

Ken, are you sure they are stripped? Those threads are tight by design.

[Ken/Alabama]

Originally Posted by ford38v8

Ken, are you sure they are stripped? Those threads are tight by design.

Yes. Most defiantly stripped. Threads are gone.i can pull the bolt out by hand.

[cmbrucew]

HI Ken
I have one bolt that is stripped, so I applied #2 Permatex and put it back like it was.
It is above the oil level, I had forgetten about it until you mentioned yours.
Bruce

[Karl Wolf]

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The center section is not a commonly ruined part,
you should be able to get one cheap, maybe free.
I'll look in my pile, if you're interested.
I'm near SF, Ca.

Karl

[Ken/Alabama]

Originally Posted by Karl Wolf

The center section is not a commonly ruined part,
you should be able to get one cheap, maybe free.
I'll look in my pile, if you're interested.
I'm near SF, Ca.

Karl

i have a couple of spares laying around. I just didn't want to toss it out if it could be saved.

[Sal]

I would install heli-coils and save the center section.

[JonC]

I second Heli coil

[mobebk]

I did a helicoil on my stripped bolt on my banjo and it still leaks. I think I need to pull it apart and rtv now

[Pete]

Originally Posted by mobebk

I did a helicoil on my stripped bolt on my banjo and it still leaks. I think I need to pull it apart and rtv now

You can try a copper washer under the head of the leaker.
These are used on later Ford 8 inch and 9 inch rear ends.

[19Fordy]

I wonder if you could clean up the holes nice and clean, install the helicoil using epoxy.
Let it harden overnight and then install the bolt using epoxy on the threads. Perhaps Locktite makes a special epoxy sealant for "no leak allowed" situations. As mentioned earlier, those banjo bolts are made to provide a very tight "sealed" fit. Here's a good article that describes adhesive sealants and other types of thread inserts besides Helicoils.
http://file.lasersaur.com/docs-third...ign_Manual.pdf

[Lawrie]

Why not tap it out to a larger bolt,7/16 or maybe metric,
But I would try a helicoil first.
Lawrie

[Bassman/NZ]

The trouble with a helicoil is that they are regular threads, not the special Ford "tight" threads, and so they will leak. Permatex thread sealer may keep them leak free, plus Pete's idea of a copper washer.

[flatmotor40]

Make a threaded plug and weld it in after you make it a press fit or do the helicoil used it on aircraft all the time.To make a plug you can turn nuts in lathe to get proper dia.

[JonC]

OK I guess I can tell you how dumb I am, before I knew better I made studs that were long enough to go through the banjo section on most all the holes on a quickchange I built. I used copper washers and permatex and never had a leak.

[Admiral]

What are these "special" Ford threads? On my car I cleaned the center section's holes with a standard tap, I wire-wheeled all the bolts and then just reused them. It's 100 percent dry -- zero leaks or drips. Did I get lucky?

[19Fordy]

Yes, you got lucky. Those threads are close tolerance for a different class of fit.