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Join Date: Dec 2004
Location: Danville - CA
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Assembling ConRods on Crank
Quick question. How 'freely' should I expect the conrods to rotate under their own weight once torqued down onto the crank? I completed the assembly over the weekend and as I rotate the crank each rod falls in a very smooth motion under its own weight, without any one moving more quickly or slower than another. The motion though is a reasonably slow one. Wasn't sure if I should have expected these things to spin around the crank fast or slow.
I know its a tough question to answer without seeing the real deal but am curious to see what you all may have to offer. Thanks,
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Rob Montgomery '88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running Last edited by 930LDR; 06-13-2011 at 10:05 AM.. |
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06-13-2011, 09:29 AM
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Location: Central Fla
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rods
What did you use for assembly lube, and how much clear., grease will act much tighter than say 30 wt.
Mike Bruns JBRacing.com
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The two most useless things to a driver are the braking distance behind you and nine-tenths of a second ago. |
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06-13-2011, 09:33 AM
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I used Lubro Moly 3010 (blue tube) - came with the super rebuild kit I purchased from our host.. Applied 'generously' as referenced in Wayne's textbook
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Rob Montgomery '88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running Last edited by 930LDR; 06-13-2011 at 10:04 AM.. |
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06-13-2011, 09:36 AM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
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Sounds like mine
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06-13-2011, 10:36 AM
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did you also lube the sides of the rods by the big end as per the dempsey book pg 123?
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06-13-2011, 12:20 PM
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yes
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Rob Montgomery '88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running |
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06-13-2011, 03:15 PM
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Sounds appropriate to me. I recently installed rods onto a crankshaft (everything freshly machined) and all the rods fall in a fairly slow, smooth damped motion (from the assembly lube).
Dave
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Dave '75 911s Coupe |
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06-13-2011, 06:36 PM
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Sounds good... the assembly lube was definitely thicker than I would have expected.
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Rob Montgomery '88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running |
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06-13-2011, 08:22 PM
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