Lightning

Lower pulley torque value?

Old Jul 31, 2001 | 08:32 PM
  #1  
JeffsLightning's Avatar
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Lower pulley torque value?

Does anyone know what the torque amount is on the lower stock blower pulley bolt. It's the allen bolt that holds the pulley/cage to the crank. Thanks Jeff
 
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Old Jul 31, 2001 | 08:46 PM
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LIGHTNINROD's Avatar
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From: Warner Robins, Ga, CSA
Don't know...

but it's a bunch! I couldn't break it loose when changing to a PSP pulley so a friend had to do it for me. Must be 150+?

Dan
 
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Old Jul 31, 2001 | 10:48 PM
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According to my Ford Manual, it's a four step process. This indicates a torque to yield bolt. Are you using a new bolt?

My Ford manual says the following for the crankshaft pulley.

Step 1: torque to 66 lbs.
Step 2: Loosen 360 degrees
Step 3: Torque to 35-39 lbs
Step 4: tighten another 85-90 degrees

It also says under the Lightning section "tighten auxillary crankshaft pulley to 75 lbs".

It doesn't specifically call the aux. pulley the blower drive pulley.

I believe you must follow the first proceedure if you remove the large center bolt that holds the pulley(s) on the crank.

Hope this helps.
 
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Old Jul 31, 2001 | 10:59 PM
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Question

Jay,

If it's a torque to yield bolt aren't you suppose to not reuse them?
I'm not sure.
 
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Old Jul 31, 2001 | 11:52 PM
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Jay Lincoln's Avatar
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From: La Habra, CA
That is correct. Do not reuse torque to yield bolts. They will not read correctly.
 
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