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More pony problems
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4 years 3 months ago #219281
by Sf1066
Well this poor pony must have had a tuff life before me. Among other things I found a crack above the main bearing thru where the pin goes. I assume this is not normal or repairable. But I thought I would get your opinion. Thanks.
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4 years 3 months ago #219300
by hfdzl
Is that in the bearing? Cracks in the actual block casting.also happen where the pin locates.
R2 5E3562 SP U.S.A. W.9151
R2 5E3563 SP U.S.A. W.9152
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4 years 3 months ago #219313
by Sf1066
That’s a nice fix. I was concerned with the block cracked when it warmed up the bearing could move where ever it wanted. I will get serious about finding a crank and other stuff now.
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4 years 3 months ago #219323
by bboaz
sf1066, in another thread, 9U d6 pony motor main bearings, started by me and referencing Uncle Riches fix of the pony motor bearings and end play, you will see what I did to determine the amount of flange on the inside of the bearing boss's for the bearings I made. I used the contraption pictured in the first photo to determine the thickness of the flanges on the bearings for the front and rear bearings. The second picture shows the contraption in place positioning the crankshaft so it is centered on the cylinders. I don't remember what the thickness of the flanges were but I was able to adjust the thickness of the flanges so crankshaft stayed center and still had an acceptable end play clearance. In my previous reply I said the flanges were .060 but I think that is what I started off with and once the crankshaft was centered on the cylinders, I made adjustments to this thickness. This repair was made to a D6 pony motor but I think the same thing could be used on your D2 motor.
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4 years 3 months ago #219324
by Mike Meyer
That's a really nice solution bboaz, and thanks for the extra pics that show how you centered the crankshaft, very interesting.
Mike
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