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Hi,
Good idea Dave! Removing the tension on the adjusting bolt helps in keeping the head from snapping off or bending if one doesn’t know, Leftie Lucy and Righty, it Titans! (:) Gee, I’m getting like Kitty! Wait a minute, he’s a professional writer ... I’m not! Confusing, huh?
The poster, did ask an open ended question with “change” right in the middle!
I’m glad he didn’t use a knife and then roll the new ones into place!
I’ve seen a couple lazy maintenance mechanics do it a few times and the belt manufacturers really frown on the practice!
I also adjust the compressor out to proper tension first and then the power steering pump last.
The compressor moves horizontally but it still moves away from a vertical center line.
If he does it in reverse it will over tighten the power steering pump shaft that only runs within a long plain bushing bearing.
That bushing has a spiral groove along its length, to let the fluid in. This allows the shaft to float up on some film dragged around by the shaft spinning. Fluid stacks up on the lower side of a shaft , due to gravity, but the spiral groove allows the oil to equalize top to bottom.
The fluid is not pumped under the shaft.
Too much tension and you defeat the purpose to some extent.
I adjust it until I can just barely slip the pulley itself, under the belt by using both hands on it.
The compressor pulley should definitely not spin the crankshaft. So this sets up the thinking that one belt does not need to be as tight as it’s doing a lot less work!
These pumps are built simply and inexpensively to operate quite well for long lengths of time, if you just give them some slack! (:)
Phil
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