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Proper torque procedure

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Old 01-26-2005, 01:33 PM
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Adam C
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Default Proper torque procedure

I can't seem to locate and explanation for the WSM's torque procedure.

In many cases, a three step procedure is given; i.e. 25ft lbs for the 1st step, 48lbs for the second step, and 75+4 lbs for the third step.

What is the +4 portion? This appears many times in the manual.

I'm completely stumped.

This is in reference to bolting together my lower crankcase section to the block.
Old 01-26-2005, 03:11 PM
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Vilhuer
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Could it be little odd way of saying to use between 75 lbs and 79 lbs? In other words 77 +/- 2 lbs. 77 and 79 might be more logical, rouded to nearest 5 or 10 or such, numbers when converted to Nm.
Old 01-26-2005, 06:33 PM
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Adam C
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bump
Old 01-26-2005, 07:07 PM
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Jim_H
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I would find out the answer by dialing 714-632-9288
Old 01-26-2005, 08:41 PM
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Adam C
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Hi jim,

I was going to call Mark (who sold me all the parts anyways) but I wanted to check here first so I don't pester the guy.

Besides, with all these engine rebuilds I can't believe this hasn't shown up in the forum before. I see no mention of it in the archives.
Old 01-26-2005, 08:56 PM
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GlenL
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It's as Vliheur says: Just a way to give a torque range. Set the wrench for the target number and ignore the "+" part.

Lower crank section? Get a thin-napped mini roller and use the sealant sparingly...but not too sparingly. And use the real stuff. Home Despot had a good assorment of rollers when I needed one. I put on too much and spent two months waiting for bearings to fail. Never happened.
Old 01-27-2005, 12:21 PM
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Adam C
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Thanks Glen.

I was already pondering the consequences of putting too much sealant on after looking at those tiny oil passages!
Old 01-27-2005, 12:26 PM
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heinrich
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Yes. Glen has it. The idea is, you can be a bit over but not under.



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