 mahlmann
"3rd Year" Silver Supporting Member
Posts: 476
Loc: Sunnyvale, CA
Reg: 01-20-11
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 07-03-12 05:28 PM - Post#2244152
I thought I saw this mentioned here earlier but I'm unable to find it again.
What size tap was recommended for removing the pilot shaft bushing from a 235 crank?
Thanks folks.
Mike Ahlmann
Sunnyvale, CA
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 2blu52
"12th Year" Silver Supporting Member
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07-03-12 05:35 PM - Post#2244157
In response to mahlmann
You are correct, there was mention of using a tap to thread the inside of the pilot bushing, then turning a bolt into the end of the crank pushing the pilot bushing out. Tap size would depend on the inside diameter of the bushing. 
"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"
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56sedandelivery
Valued Contributor
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Age: 61
Loc: Everett, Wa.
Reg: 02-26-08
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07-03-12 05:40 PM - Post#2244161
In response to mahlmann
My method has been to use a CRAFTSMAN 3/8 inch extension, pack the recess with grease, insert the extension "female end" in, and use a brass hammer to drive it in. Add grease as the bushing backs out. The CRAFTSMAN extension is the right size, I don't know if other brands would also work. Butch/56sedandelivery.
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motorman
Super Senior Member
Posts: 5017
Loc: south western pa.
Reg: 01-25-00
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07-03-12 06:48 PM - Post#2244193
In response to mahlmann
I thought I saw this mentioned here earlier but I'm unable to find it again.
What size tap was recommended for removing the pilot shaft bushing from a 235 crank?
Thanks folks.
i use a 5/8-11 tap
| retired race engine builder,former NASCAR tech inspector. new corvettes owned 1959,1962,1963,1964,1965, 1966,1997,1999,2002,2005, 2008 plus 30+ other chevy cars and trucks along the way |
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 Idaho
"4th Year" Silver Supporting Member
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Loc: Upstate New York
Reg: 03-02-07
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07-03-12 06:54 PM - Post#2244195
In response to 56sedandelivery
I used a steering wheel puller to pull mine out. I first had to slightly enlarge the center of the pilot bushing with a large drill bit, then filled the pilot bushing with grease. I then began screwing the puller bolt into the pilot bushing, it cut its own threads in the bushing. The combination of the hydralic action of the grease being forced in and behind the bushing by the head of the wheel puller bolt, as well as the pulling action of the threads on the puller bolt inside the bushing, pulled it out.
| 1953 210 Chevy convertible, 1956 Gmc pickup, 1952 MGTD convertible, 1973 HD Superglide, 1972 HD Electraglide, 2002 HD Heritage Softail Springer. |
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mahlmann
"3rd Year" Silver Supporting Member
Posts: 476
Loc: Sunnyvale, CA
Reg: 01-20-11
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 07-03-12 07:02 PM - Post#2244197
In response to motorman
Those were the numbers I was looking for.
Thank you!
Mike Ahlmann
Sunnyvale, CA
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2blu52
"12th Year" Silver Supporting Member
Posts: 13059
Age: 79
Loc: Montana
Reg: 03-12-02
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07-04-12 05:54 AM - Post#2244339
In response to Idaho
I used a steering wheel puller to pull mine out. I first had to slightly enlarge the center of the pilot bushing with a large drill bit, then filled the pilot bushing with grease. I then began screwing the puller bolt into the pilot bushing, it cut its own threads in the bushing. The combination of the hydralic action of the grease being forced in and behind the bushing by the head of the wheel puller bolt, as well as the pulling action of the threads on the puller bolt inside the bushing, pulled it out.
Lucky move. I broke two pullers trying to remove mine, the old one is still in there. 
"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"
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arnieg141
Dedicated Enthusiast
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Loc: nj
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07-04-12 06:34 AM - Post#2244351
In response to 2blu52
i always used a small sharp chisle and hammer to break it never had a problem
| GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison |
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VANDENPLAS
Frequent Contributor
Posts: 1458
Age: 33
Loc: ontario canada
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07-04-12 10:40 AM - Post#2244440
In response to arnieg141
the grease method works great i have used this many times,also works good for removing gmc diff pins when they snap off in the carrier, WHO MAKE A FASTENER WITH A 5/16 HEAD AND 5" LONG GOING INTO CAST?!?!?!?!?!  freaking frak!
anyways the chisel method also works great if its a solid brass or soft steel bushing.
the best way is with a pilot bearing puller on a slide hammer,should be able to get one from your local lend a tool place.
Every mother on Earth gave birth to a child.Except my mother,she gave birth to a legend .
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mahlmann
"3rd Year" Silver Supporting Member
Posts: 476
Loc: Sunnyvale, CA
Reg: 01-20-11
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07-14-12 12:09 PM - Post#2248157
In response to motorman
Pilot shaft bearing is OUT!
Thanks for all the suggestions. The 5/8" x 11 tpi tap worked liker a champ - walked that bushing right out of there with no problems and minimal effort!
We've got a smart and helpful bunch of folks here!
Mike Ahlmann
Sunnyvale, CA
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