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Joined: Feb 2007
Posts: 188
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2007
Posts: 188 |
Trying to remove the kingpins from a 38 straight axle. I removed the kingpin lock pins and pounded out one side pretty easily. The problem one is another matter. I started out using a brass punch/drift with a regular ball peen hammer. After several hard licks, I could tell nothing was budging. I then used some pentrating oil and stepped up to a heavier hammer. No luck. I soaked the pin several times over several days and went back at it tonight with a large shop hammer. Still no movement, but the brass punch is showing the battle scares. Is there a better solution to this problem, that I am apparently overlooking?
By the way, this supposedly unmolested straight axle had two different spindles, both use the same diameter and length kingpin, but different bushings. The problem kingping has the correct spindle. Any insite appreciated.
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Joined: Dec 2001
Posts: 775
ChatMaster - 750
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ChatMaster - 750
Joined: Dec 2001
Posts: 775 |
The knuckles should have been the same. Try using a gear puller to drive the pin out. Have you removed both the top and bottom plugs?
Brian
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Joined: Feb 2007
Posts: 188
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2007
Posts: 188 |
Yes, the plugs were removed. The spindles/knuckles look the same, but the bushing outer diameter is smaller on one spindle and the plug was smaller for that one.
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Joined: Jan 2002
Posts: 2,299 Likes: 8
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Jan 2002
Posts: 2,299 Likes: 8 |
Use a torch to heat the end of I-axle. The spindle with the smaller bushing is a orignal and the larger one has been replaced with a later design spindle.
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Joined: Feb 2007
Posts: 188
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2007
Posts: 188 |
Pump Jockey, What king pin kit do you ask for when using the small bushing spindle? I bought what was supposed to be a 38 kit and it will not fit the small bushing spindle. Am I correct, isn't this supposed to be a "floating" bushing?
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The original knuckle fit 1937-39 str. axle cars. The 1940 Str axle car had a new knckle. It eventually replaced the 1937-39. When this happened a new bushing is mentioned, There is no clear explanatios in the book.Either pin should fit in the I beam the same. I would suspect one is rusted in. Not unusual....torch time. There is only one king pin set listed in the parts books from 1939 up through 1954. Thats about all I can come up with.
The bushings are full floating.
Last edited by Chev Nut; 06/27/07 10:39 PM.
Gene Schneider
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Joined: Jun 2007
Posts: 40
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jun 2007
Posts: 40 |
Here is a tip from long ago experience on king pin removal.
I noticed some one suggested a Jack under the axle another a hot wrench.
Let the jack down on a solid block of wood or metal, as the hydraulic jack absorbes a lot of the inertia. Place it as close to the pin to allow for it to move, so the axle will not absorb additional inertia.
It worked a long time ago!
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