1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Coolant leak

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Old 10-09-06, 12:35 PM
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Dom
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Question Coolant leak

It looks as if I have a coolant leak around the water pump. I am about to remove the fan, air pump, alternator to get a closer look.

I'm thinking that if it comes off, for any reason, it's getting replaced.

All advice would be appreciated
Old 10-09-06, 02:31 PM
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Dom
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Well I pulled it off and I can see what appears to be the source of my leak:
.
.

.
.
So it looks like I'm looking at a pump for $56 and a gasket for $10 and 2 shims for $2.

http://www.mazdatrix.com/b9wpumps.htm

Funny thing is that there is not gasket or shims on it right now???

Also, shouldn't I be able to get it to free spin one rotation by hand, or is it suppose to require the smallest effort to keep it going?
Attached Thumbnails Coolant leak-pump-leak.jpg  

Last edited by Dom; 10-09-06 at 02:37 PM.
Old 10-09-06, 02:44 PM
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That's the weep hole, pump is toast. Indicates the bearing/seal is going/gone.
Old 10-09-06, 03:17 PM
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Dom
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Originally Posted by trochoid
That's the weep hole, pump is toast. Indicates the bearing/seal is going/gone.
Thanks a bunch, it's nice to get my diagnosis confirmed.

I'll be going to the parts store tomorrow for a replacement
Old 10-10-06, 03:06 AM
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just remember that the nuts/bolts holding it on the pump body are only torqued to about 15 ft/lbs (ie, not very tight). I run a thin bead of plain old axle grease on BOTH sides of the gasket before mating the pump to the body. Makes for a nice water seal and also a BREEZE to pull the old gasket off should you need to replace the pump in the future...
Stu Aull
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Old 10-10-06, 08:21 AM
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Interesting thing is that there was no gasket when I pulled it off. But I'm getting one when I get the new pump.
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