Here are some pictures with white crayon applied to the crank pulley. Before and after running.
There is also two pictures of the belt to show condition and seeking any input on “glazing”
Belt removed : noise gone
Belt on with any degree of tightness squeals like a pig..
Take a look at these pic, anyone think the belt is riding to low in the groove?
This is the belt as it sits on the crank pulley.
The pulley without belt ( although rides in groove furthest from block
Belt...
Those of you pointing out that the alternator is likely not the cause are correct.
I Put a $10 Facebook alt on and I still had the same problem. There is no way. The alt is the problem.
Alt belt appears new, it’s only 18 months old.
Removed all belts except alt belt and i still hear the...
On the first one bearing had noticble play and the pilot bolt got hit enough to burn me.
The second one felt smooth but I could see wobble in the fan
3rd one. I didn’t investigate much last the super loud noise.
The alternators all say ac del o on the case but came in plain cardboard box. At...
thanks for the replies.
Belt howls with the slightest tension, belt is ready to fall off.
It’s not rubbing in anything except maybe itself internally
I’ll install a used one and report back
I have a nice 85C 10 2 Wheel Drive with a 350 engine. Recently noticed a squealing noise on start up. Within a few days it became constant and LOUD
Determined the alternator bearings to be bad.
Replacement alternator made worse noise. And fan/pulley were out of round
Replacement alternator #2...
Well, damn. I guess when spring comes I’ll be putting the “extra” ones in. The brake shows I removed didn’t have them and the manual didn’t clearly show them either. Meh, live and learn.
these are lever pivots for the rear drums. My question is why did spring kit come with 2? I ordered a kit for each side so now I have a total of four. The manual indicated only one per side…
And also, what are these guys for?
Here are some pictures straight from my 1985 C/K truck book. This response may be a little late to help you out, but hopefully the next guy can use it as a reference.