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Old 11-13-2010, 06:44 PM
retlas
 
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losing engine coolant

I believe my water pump is going bad. I have a '96 Merc Cougar with a 4.6 Ltr
engine. It appears to be leaking from the front lower middle of the engine under the crank pulley. If you concur with my guess, how hard is it to replace and what should it cost for the part and how much for labor if I decide not to do it myself? Dick

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Old 11-13-2010, 08:49 PM
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Should be a piece of cake.
Drian coolant,removecooling fan,and shroud.Next remove the belt tensioner and belt, then remove the pulley bolts and then the pump. Reverse to reinstall.
The fan will be the only hard part as you will have to loosen it with a large wrench.It turns backwards (counter clockwise),you will have to turn the large hex shaft that direction to loosen it from the pump shaft.
I sometimes use an air chisel to "bump" it loose before i remove the belt so the belt holds it still and all the force can be applied to the hex to get it loose.
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Old 11-14-2010, 08:08 AM
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Originally Posted by latech
Should be a piece of cake. The fan is the hardest part,
I sometimes "bump" it loose before i remove the belt so the belt holds it still and all the force can be applied to the hex to get it loose.
X2 Been there but not really a big job if you have the proper tools.



Cole
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Old 11-14-2010, 08:21 AM
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Originally Posted by eloc431962
X2 Been there but not really a big job if you have the proper tools.



Cole
I figured the nut and bolt part would be pretty easy for him and the belt is a chinese jigsaw puzzle. The only cofusing thing that seems to trouble people in the past (that I have found) was the fan clutch issue.Most average backyard guys dont have the wrench for the hex on the fan clutch so I suggested the chisel thing as a few good wacks gets er loose.It leaves a gouge in the hex but thet are pretty meaty so no problem. The pump ...who cares your changing it anyhow so no harm done there.
Funny thing is I rarely ever change one of those. They hardly ever go bad, but I have changed a few.
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Old 11-14-2010, 08:28 AM
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Quote:
Originally Posted by latech
I figured the nut and bolt part would be pretty easy for him and the belt is a chinese jigsaw puzzle. The only cofusing thing that seems to trouble people in the past (that I have found) was the fan clutch issue.Most average backyard guys dont have the wrench for the hex on the fan clutch so I suggested the chisel thing as a few good wacks gets er loose.It leaves a gouge in the hex but thet are pretty meaty so no problem. The pump ...who cares your changing it anyhow so no harm done there.
Funny thing is I rarely ever change one of those. They hardly ever go bad, but I have changed a few.
Yea i have only done a few myself. They are no big deal once you have done one . But yea i agree most people don't have the tool to remove the nut.
The belt's can be a beotch ex-specially if the routing digram is long gone.



Cole
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Old 11-14-2010, 12:23 PM
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losing engine coolant Reply to Thread

OK, thanks for all the responses. Been a big help.
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