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#1
07-25-2007, 05:32 PM
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Another thrust bearing problem...
On my newest build, i get .006 endplay with out caps on the block, and less than .001 when i install #4 cap.
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#2
07-25-2007, 05:59 PM
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Start sanding that thrust bearing, woopee! What crank?
__________________
Derek B. Current best: 11.97@110 1.65-60' !!! '74 ventura,  (Fired july 14/06) '74 462 4-bolt (9.5-1), SCAT, Ross, T-II w/850DP (shaker455), TH350, Conti 10'' 3800, Supercomps, Magnaflow, 3'' Pypes, 3.73's, 28x13.5-15 ET streets.1970 Beismeyer 17' flatbottom vdrive, 11.8:1 455P, ported heads, dual Qjet tunnel ram. 
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#3
07-25-2007, 06:09 PM
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Just remember to sand the right side! Luckily PDude has just the thrust bearings for sale..... I sanded one correctly, and the other.. well.. I didn't check that I was sanding the correct side....
__________________
Saving the world... One country at a time. 
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#4
07-25-2007, 06:39 PM
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Always something huh?
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#5
07-25-2007, 09:47 PM
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Tuition costs money Sarge!
See you at norwalk. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#6
07-26-2007, 02:24 AM
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Quote:
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons? ... or has built a record breaking DOHC hemi four cylinder Pontiac? ... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967) |
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#7
07-26-2007, 07:03 AM
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How tight is that cap side thrust bearing going on to the cap, as I bet that cap side bearing is spreading, is the thrust surface of the cap greater than the thrust surface in the block?
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SJM |
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#8
07-26-2007, 08:05 AM
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Don't start sanding on the thrust bearing until you determine that there is a difference in thickness on the bearing halves..,,,which I doubt there is!!!! I would suspect the cap alignment to the block.
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#9
07-28-2007, 03:19 AM
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Quote:
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#10
07-28-2007, 03:25 AM
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Quote:
What I did was use a straightedge and a flashlight to determine that the cap was offset toward the rear of the block slightly, so then knew that I needed to remove material from the rear side of the bearing on the cap, and from the front side of the bearing in the block. So I removed .003 from each place, and ended up with .005 endplay when done. I used the 400 grit wet & dry with water on a piece of glass (old picture) to remove material while frequently monitoring how much I removed with my dial calipers. Then when the size I wanted was reached, I then went to the 600 grit. Here's a pic:  
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