Engine squeal and belt wobble

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ceejay

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OKC
First Name
CeeJay
Truck Year
1981
Truck Model
C10
Engine Size
305
So recently I had to adjust the timing on my 305. Well I didn't really know what the PO did to the engine, so I rotated the engine to TDC, but when I first did this I rotated it counterclockwise and I think I loosened it, so then I ended up going clockwise to get it to TDC, adjusted the timing, all is good and well. I also went ahead and replaced the belt while I was at it. Well when I first ran the engine all good, no wobbles, nothing. Well I've developed a squeal as of recently, only on acceleration. There was not a squeal before any of this. Also, I popped the hood while it was running and looks like the belt is a little wobbly around the harmonic balancer area. I'm just taking a wild guess that is why it's squealing on acceleration. What do you think I did? Could I have loosed that pulley too much? Or is there not enough tension on the belt? Like I said, I don't recall seeing the wobbling, and there definitely wasn't squealing when I first did all this.
 

82sbshortbed

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SE Texas
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Doug
Truck Year
1982, 1984
Truck Model
1500 shortbed, 1500 longbed
Engine Size
454, 305
I'd tighten the belt. Think that'll fix the squeaking problem. Mt new alt belt did that. Little more tension and it went away.
 

AuroraGirl

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Northern Wisconsin
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Taylor
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1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
it takes a lot less force rii rake tension off a belt than to put on it. Belts require a retension after "seating" into the grooves and a small amount of stretch occurs. this is why there are two belt tensions listed in the manual. for new and old belt. Ideally, dayco and gates say 3-5 minutes run time and then retension on a cool belt to spec is what they recommend with periodic adjustment
 

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