[DeTomaso] Fw: Removing Pilot Bearing - Partial Victory and Update

Tue Jul 25 17:38:31 EDT 2023

   ----- Forwarded Message ----- From: Jim Wallace <pantera_4220 at yahoo.com>To: Will Kooiman <will.kooiman at gmail.com>Sent: Tuesday, July 25, 2023 at 05:37:43 PM EDTSubject: Re: [DeTomaso] Removing Pilot Bearing - Partial Victory and Update
  Try some "heat" with a torch
    On Tuesday, July 25, 2023 at 05:36:00 PM EDT, Will Kooiman <will.kooiman at gmail.com> wrote:  

 Maybe just a better puller.

Take a look at this:  https://probearingtools.com/products/kukko-21-2-internal-bearing-extractor-5-8-to-3-4

Btw, we had the same problem in my dad's 1979 Ford Pickup, 300" 6-cylinder.  It came from the factory with a roller pilot bearing.  We killed the aluminum case, 3-speed + overdrive transmission, and decided to replace the pilot bearing as we switched to a toploader 3-speed.  We had a hell of a time getting the pilot bearing out.

That's where I learned the profanity trick - from my dad.

On 7/25/23, 5:09 PM, "DeTomaso on behalf of jderyke--- via DeTomaso" <detomaso-bounces at server.detomasolist.com <mailto:detomaso-bounces at server.detomasolist.com> on behalf of detomaso at server.detomasolist.com <mailto:detomaso at server.detomasolist.com>> wrote:

You just found a second good reason to not use a bearing where Ford had
a bushing. Your best recourse at this point is to use a Dremel and a
small new grinding stone, and with great care, grind two areas of the
outer race very thin but not all the way through to the crank. Then use
a Cape Chisel (special narrow type) and hit the race between the
ground-in thin spots. Eventually this will crack a piece out of the
race and release the press fit tension. At that point you should be
able to tease the race out.

On Tue Jul 25 2023 13:21:32 GMT-0700 (PDT), Mike & Elizabeth
<mbefthomas2 at gmail.com <mailto:mbefthomas2 at gmail.com>> wrote:
Well, I was able to get the bearing puller into my pilot bearing and
with the slide hammer, managed to pull the center of the bearing out,
but the race is still firmly planted. I've tried to remove the race
with the puller but it keeps popping out and is scoring inside of the
race and rounding the inner edge where I'm trying to get it to hold
on. There is such a narrow lip on the race on the inside, the puller
just deflects enough to let go and ends up rounding the edge and
scoring the inside of the barrel.
Not sure what to do at this point. If I need to file the inner edge of
the puller to give it a flat grip on the inner lip, I'll have to buy my
own. Trying to drill it out would take multiple large and I'm sure
very expensive bit to drill the hardened steel as the hole is now
0.92". I could try threading with a 18/16" tap but as said in a
previous response very difficult with in the hardened steel.
In the meantime I'm continuing to flood both ends of the race with
penetrating oil in hopes that will help get it free, but I'm afraid I
may have used up my bearing puller chances.
Concerned in Covington:
Mike
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-------------- next part --------------
   ----- Forwarded Message -----
   From: Jim Wallace <pantera_4220 at yahoo.com>
   To: Will Kooiman <will.kooiman at gmail.com>
   Sent: Tuesday, July 25, 2023 at 05:37:43 PM EDT
   Subject: Re: [DeTomaso] Removing Pilot Bearing - Partial Victory and
   Update
   Try some "heat" with a torch
   On Tuesday, July 25, 2023 at 05:36:00 PM EDT, Will Kooiman
   <will.kooiman at gmail.com> wrote:
   Maybe just a better puller.
   Take a look at this:
   [1]https://probearingtools.com/products/kukko-21-2-internal-bearing-ext
   ractor-5-8-to-3-4
   Btw, we had the same problem in my dad's 1979 Ford Pickup, 300"
   6-cylinder.  It came from the factory with a roller pilot bearing.  We
   killed the aluminum case, 3-speed + overdrive transmission, and decided
   to replace the pilot bearing as we switched to a toploader 3-speed.  We
   had a hell of a time getting the pilot bearing out.
   That's where I learned the profanity trick - from my dad.
   i>>?On 7/25/23, 5:09 PM, "DeTomaso on behalf of jderyke--- via
   DeTomaso" <[2]detomaso-bounces at server.detomasolist.com
   <mailto:detomaso-bounces at server.detomasolist.com> on behalf of
   [3]detomaso at server.detomasolist.com
   <mailto:detomaso at server.detomasolist.com>> wrote:
   You just found a second good reason to not use a bearing where Ford had
   a bushing. Your best recourse at this point is to use a Dremel and a
   small new grinding stone, and with great care, grind two areas of the
   outer race very thin but not all the way through to the crank. Then use
   a Cape Chisel (special narrow type) and hit the race between the
   ground-in thin spots. Eventually this will crack a piece out of the
   race and release the press fit tension. At that point you should be
   able to tease the race out.
   On Tue Jul 25 2023 13:21:32 GMT-0700 (PDT), Mike & Elizabeth
   <[4]mbefthomas2 at gmail.com <mailto:mbefthomas2 at gmail.com>> wrote:
   Well, I was able to get the bearing puller into my pilot bearing and
   with the slide hammer, managed to pull the center of the bearing out,
   but the race is still firmly planted. I've tried to remove the race
   with the puller but it keeps popping out and is scoring inside of the
   race and rounding the inner edge where I'm trying to get it to hold
   on. There is such a narrow lip on the race on the inside, the puller
   just deflects enough to let go and ends up rounding the edge and
   scoring the inside of the barrel.
   Not sure what to do at this point. If I need to file the inner edge of
   the puller to give it a flat grip on the inner lip, I'll have to buy my
   own. Trying to drill it out would take multiple large and I'm sure
   very expensive bit to drill the hardened steel as the hole is now
   0.92". I could try threading with a 18/16" tap but as said in a
   previous response very difficult with in the hardened steel.
   In the meantime I'm continuing to flood both ends of the race with
   penetrating oil in hopes that will help get it free, but I'm afraid I
   may have used up my bearing puller chances.
   Concerned in Covington:
   Mike
   _______________________________________________
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References

   1. https://probearingtools.com/products/kukko-21-2-internal-bearing-extractor-5-8-to-3-4
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   3. mailto:detomaso at server.detomasolist.com
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