On 4/30/2011 10:35 PM, Ross Kuhns wrote:
Thanks for keeping us informed Bruce; wow, never seen it on a miata before.
Was it the original pump? what year?
Not sure, but looks oem. Vehicle is a 1994. I had the timing belt done in Spring 2001. Might have been replaced then. I can't find the original paperwork.
How was the maint. history? (coolant had been changed regularily)

Maintenance relatively up to date, except apparently coolant changes :(
Got to crack the whip on the owner, eh, myself...

Irony of this is that my other car, a 2002 WRX, is starting to weep coolant - got to get that one fixed. I'll pay someone for that. Like the miata, that means timing belt, although, from what I heard, the subaru boxer engines, are interference engines. I don't have time to mess with that on a daily driver.

-Bruce
Congrats on fixing it,


Ross


On Apr 30, 2011, at 9:39 PM, Bruce Labitt wrote:

Partial post-mortem on my overheating issue.

Pulled the water-pump.  Impeller blades were no longer visible :-P
They had rusted/rotted off.  There was nothing much there to pump/push water.  
Sure surprised me.  So it really WAS the water pump.

New pump in.  New pump clearly has an impeller!  Putting everything back 
together again.  Need an o-ring for the thermostat housing to head junction.  
After all the work, (not really hard) I am NOT going to reuse the old o-ring!

-Bruce


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