Pulley alignment issue
Thread Starter
TECH Apprentice
Joined: Sep 2012
Posts: 347
Likes: 66
From: Tucson, AZ
Pulley alignment issue I recently noticed that the main serpentine belt on my L33 is pretty chewed up at the front edge, despite very very low miles on the set up. I used a long ruler and checked that it was straight before using. I am using all factory truck accessories.
It appears that the crank, pulley and rest of the pulleys are in alignment, except for the power steering pump, which sticks out a little over an eighth of an inch .
I bought the bracket and pump used and separate from the engine as it did not come with any accessories. Did I get the wrong year power steering pump or something or is this a common problem? thanks in advance for any help or advice!
These pics the difference between the crank and ps pulley planes vs the crank and alternator(aligned).
It appears that the crank, pulley and rest of the pulleys are in alignment, except for the power steering pump, which sticks out a little over an eighth of an inch .
I bought the bracket and pump used and separate from the engine as it did not come with any accessories. Did I get the wrong year power steering pump or something or is this a common problem? thanks in advance for any help or advice!
These pics the difference between the crank and ps pulley planes vs the crank and alternator(aligned).
Launching!
Joined: May 2014
Posts: 254
Likes: 5
From: Long Island, NY
Did you ever figure out the issue? I’m having this problem with my 5.3 LM7 with truck accessories. I’m running a slightly smaller PS pulley and it’s sticking out about 1/8” more than the crank pulley. And the pulley seems to be set all the way back onto the PS pump.
I recently noticed that the main serpentine belt on my L33 is pretty chewed up at the front edge, despite very very low miles on the set up. I used a long ruler and checked that it was straight before using. I am using all factory truck accessories.
It appears that the crank, pulley and rest of the pulleys are in alignment, except for the power steering pump, which sticks out a little over an eighth of an inch .
I bought the bracket and pump used and separate from the engine as it did not come with any accessories. Did I get the wrong year power steering pump or something or is this a common problem? thanks in advance for any help or advice!
These pics the difference between the crank and ps pulley planes vs the crank and alternator(aligned).
Attachment 730195Attachment 730194
Attachment 730193Attachment 730192
It appears that the crank, pulley and rest of the pulleys are in alignment, except for the power steering pump, which sticks out a little over an eighth of an inch .
I bought the bracket and pump used and separate from the engine as it did not come with any accessories. Did I get the wrong year power steering pump or something or is this a common problem? thanks in advance for any help or advice!
These pics the difference between the crank and ps pulley planes vs the crank and alternator(aligned).
Attachment 730195Attachment 730194
Attachment 730193Attachment 730192
Launching!
Joined: May 2014
Posts: 254
Likes: 5
From: Long Island, NY
https://www.autozone.com/p/oemtools-...archText=57031
I went with the smaller pulley which was this one (300-202 equivalent):
The truck bracket it is on did not come with the engine, but I figured any gen 3 truck PS / alternator accessory bracket would have the same spacing. The alternator seems to be at the proper spacing. I wonder if maybe the aftermarket PS pump I am using is the culprit?
I am aware. I wanted to search first.
