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1988 fox, stock 5.0, upgraded hoses and rad. Pic is from the ground looking up at the water pump. You can see the balancer and pulley in the foreground.
As you can see there’s a weeping leak coming from the bottom of the water pump, NOT the weep hole. I had a pressure tester on the system when this pic was taken, the leak isn’t really noticeable when the car is hot.
Does it look like just the seal/gasket that’s been broken?
With the poor quality of most gaskets these days, not at all uncommon for rear plate to leak like that.
I have no idea if it’s the factory pump/gasket, hasn’t been touched since I got the car around 15 years ago.Originally Posted by ZR
I think those lower bolts (right where it’s leaking) only attach the backing plate to water pump. Can they be tightened with some special thin wrench?
You need to grind a wrench to slide up in between.
Likely a bad gasket, the pump looks pretty old and coolant is acidic, over time it will eat gaskets and cause leaks like that, best to swap it out, or replace the gasket. You could try tightening, IIRC those bolts are either 11/16”, which is close to 17mm, or 5/8”, which is close to 16mm.
I’ll try tightening. I’m doubtful it will work but it’s easy, so it’s worth a shot.
Sorry to bring up this topic, but I was sleeping and just woke up. Princess Auto has a 9 pc #8566549 super thin metric wrench set from Grip. Used it on my wife's Volvo C30
Not high quality , but may save your knuckles in a pinch.
Last edited by redo75; 07-14-2023 at 04:04 PM.
Pray those water pump bolts don't break when tightening or removing.
They are notorious for breaking.
Antiseize when reinstalling.
With it already leaking, can almost guarantee at least one of them seized.
-Don____________
Those are what I got! They’re a great tool to have.
Last edited by m_owing; 07-16-2023 at 09:58 AM.
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