OK, one for the "been there, seen this, done that" brigade.
My blue 605 has a weeping waterpump. It leaks a steady fine dribble from the weephole - I've confirmed this as the source. This pump is apparently only a few years old.
Normally, the things which cause a waterpump to weep (seal failure) are sitting still for years (not the case here), or massive coolant pressurisation (compression test good, no mayonnaise). The car currently has no thermostat - I believe this was removed in efforts to sneakily reduce the weepage.
Do PRV thermostats fail "safely" (as in, do they more commony fail open)? Or can they freeze shut?
There are some aspects of the waterpump which hearken to the 2.5 - it's not the same unit but looks to have similarities. Has anyone ever pulled one down and renewed the seal?
Thanks, Adam.
PRV Waterpump Leakage
Moderator: RichardW
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Re: PRV Waterpump Leakage
Which 2.5?
Have a few spare water pumps (both versions) of my sort of 2.5
John
Have a few spare water pumps (both versions) of my sort of 2.5
John
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Re: PRV Waterpump Leakage
Hi Addo
Looked out a new 2.5 water pump from the heap last night.
Centre operating part looks identical.
Just much less of the outer casing casting than in your V6 photo.
I could not see how the pulley wheel and impellor were fixed to the shaft.
They appear to be just a tight fit.
Interested because on the two types of 2.5 pump only the pulley wheel varies in belt width and diameter.
Will try and find a used one to pull apart.
John
Looked out a new 2.5 water pump from the heap last night.
Centre operating part looks identical.
Just much less of the outer casing casting than in your V6 photo.
I could not see how the pulley wheel and impellor were fixed to the shaft.
They appear to be just a tight fit.
Interested because on the two types of 2.5 pump only the pulley wheel varies in belt width and diameter.
Will try and find a used one to pull apart.
John
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