|Originally posted by pontiacfierokid1985:|
Like the title says need to know the pivot/hold down bolt size and thread pitch I have the Rodney dickman idler pulley installed but still getting belt squeal when it rains. I’m looking to put a longer bolt with a nit on the back side so it doesn’t come loose also will apply red lock tight
Sorry, can't help with that, because my Fiero is 1000+ miles from me, so I can't check.
What I will say though is that there are a number of other factors that can lead to belt squealing...
1 - Glazed alternator and crank pulleys
2 - Excessive load on the alternator
3 - Warped alternator bracket (Rodney sells a fix: http://rodneydickman.com/ca....php?products_id=81)
4 - Worn out alternator belt
How new is the belt that's on there? Is this a car that comes out once in a while, or did you just recently replace it?
You might also want to try a set of underdrive pulleys. I went with Rodney's dead idler pulley and the underdrive pulleys at the same time, and never had squealing ever again.