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Old Yesterday, 11:54 AM   #1
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Join Date: Aug 2023
Location: Netherlands
Posts: 244
Coolant leak, waterpump?

Chasing down the coolant leak. A little recap for those who haven't followed: Last winter I replaced the metal coolant pipes from the back to the front (base to S version) as well as all pipes and hoses on the front of the car. Filled the car etc, now it has a leak. Funny part, not on any of the parts I replaced;

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The drips mainly hang where the green circle is, sometimes a few drips from the T-junction on the hose. You can't see on this pictures, but this elbow is angled down slightly, so I guess it is the gasket of this elbow and not the connection of the hose (which would drip the other direction).

The hose you see is the one coming from the heater core and the expansion tank. It remained in place during my work, but the big hose towards the radiators might have pushed and jiggled it a bit.

As far as I can tell now, this elbow is actually part of the waterpump, correct? I have no reason to assume an issue with the waterpump itself, no play on the shaft, spins smoothly etc. So what to do? Replace the gasket and call it a day?

I don't intend to run the engine for more than another few k miles, so not in the mood to throw money on it with the future in mind haha.

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Old Today, 02:15 AM   #2
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Join Date: Oct 2022
Location: NJ
Posts: 240
I’m going to make a suggestion here, which would be to have a water pump on hand when you do so. The shaft seal is much more likely to fail than the gasket itself.

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