throw out or water pump?

I have noticed a noise in my YJ that I thougth was the throw out bearing
as it goes away when the clutch is pressed(while sitting in the seat),
but by listening in the engine bay the squeak sounds like it is up front
around the water pump. I have not had some one else press the clutch
while I listened up front to make sure it was the same. What do you
think?

--
o_o_o_o
/| ,[_____],
|¯¯¯L --O|||||||O-
()_)¯()_) ¯¯¯¯¯ )_)

I would be checking the harmonic balancer I think. If it has separated
it could be starting to tag the timing cover. There is a little back
and forth play in the crank.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
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aGraham wrote:
>
> I have noticed a noise in my YJ that I thougth was the throw out bearing
> as it goes away when the clutch is pressed(while sitting in the seat),
> but by listening in the engine bay the squeak sounds like it is up front
> around the water pump. I have not had some one else press the clutch
> while I listened up front to make sure it was the same. What do you
> think?
>
> --
> o_o_o_o
> /| ,[_____],
> |¯¯¯L --O|||||||O-
> ()_)¯()_) ¯¯¯¯¯ )_)

When you press on the clutch, you are not only depressing the clutch, you
are also pushing the crankshaft as far forward as it will go. If the thrust
bearing is worn, this can be pretty far. This could be the crank pulley
rubbing the timing cover. You can test this theory by trying to move the
crank pulley in and out, with the engine stopped of course.

Solid materials are good conductors of sound. It could still be the clutch
or throwout bearing, with the sound traveling forwards to where you can hear
it by the water pump.

Earle

"aGraham" > wrote in message
...
> I have noticed a noise in my YJ that I thougth was the throw out bearing
> as it goes away when the clutch is pressed(while sitting in the seat),
> but by listening in the engine bay the squeak sounds like it is up front
> around the water pump. I have not had some one else press the clutch
> while I listened up front to make sure it was the same. What do you
> think?
>
> --
> o_o_o_o
> /| ,[_____],
> |¯¯¯L --O|||||||O-
> ()_)¯()_) ¯¯¯¯¯ )_)


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A bad main thrust bearing will allow the crank to slide forward
against the timing chain cover. I wouldn't worry about it, just don't
let it go dry again like when you had to clutch it for prolonged times
crawling over rocks.
God Bless America, Bill O|||||||O
http://www.billhughes.com/

aGraham wrote:
>
> I have noticed a noise in my YJ that I thougth was the throw out bearing
> as it goes away when the clutch is pressed(while sitting in the seat),
> but by listening in the engine bay the squeak sounds like it is up front
> around the water pump. I have not had some one else press the clutch
> while I listened up front to make sure it was the same. What do you
> think?
>
> --
> o_o_o_o
> /| ,[_____],
> |¯¯¯L --O|||||||O-
> ()_)¯()_) ¯¯¯¯¯ )_)