Annoying belt squeek

[Alan Peters]

Ever since I blew through a snow drift about 3 feet high over the winter, I've had an annoying belt squeek when starting cold. Warms up everything is fine. I've narrowed the squeek to the belt simply by a quick spray of wd40 on the belt when the truck is running. the noise is gone after that. Then in the mornings its back. This is a second belt first one was replaced at 35K miles, trac currently has 78K miles. The belt does look worn or almost glazed. I do not have any leaks which would drip onto the belt.



Any idea's? I've heard all you need is a 3/8 ratchet. Is this correct? What's the part number on the motorcraft belt?

 

[EddieS'04]

Im using the dayco poly cog #5060860.

I was using the gates #K060860

They are both .5" shorter than oem. They bite better. Especialy on the PS pump.

I went to the dayco when I installed the underdrive pullys. The dayco has cross cuts in the grooves.

I was still getting some slipage with the gates. Especialy on hard acceleration and turning in curves.

So far all is good with the dayco.

 

[Alan Peters]

The half inch short makes sense, but the stock size/number of gates is 868. I thought the stock size is 86.5? Updated part number or error? I may go shorter.....



Also I think the motorcraft part number is JK6873EA?



Are the shorter belts harder to install? Never tackled a serp belt before.

 

[EddieS'04]

Are the shorter belts harder to install? Never tackled a serp belt before.

No, there is more than enough movement in the tensonor pully.

First time I changed it I didnt have a long enough 3/8 drive bar for leverage. Had to use a pipe on the handle.

Since then I bought a kit from habor freight. It comes with everthing for any car.

Made the second change very simple. Nice kit will come in handy in the future for any car.

 

[Richard L]

Big Al,

Are there any belt squeaks that are NOT annoying?? :grin:



If you hit a big snow drift, you might want to check the alignment of all the pulleys. It sounds like you may have bent a pulley or an accessory mounting bracket that has knocked a pully out of alignment. I would guess it's something low down on the engine.



...Rich

 

[EddieS'04]

Thinking about what RL said. Some members with gen1 tracs. Have had the rubber on the harmonic balancer go bad.