Quote:
Originally Posted by Ivanerrol
Here's one I did.
You really need the area and the little channel the seal fits in thoroughly cleaned before installing a new seal and the pump.
MB actually advises not to use any sealant on the O ring. I use sealant but very, very sparingly.
Most ongoing leak issues were caused by el cheapo pumps not being machined properly.
Use only Laso or Graf pumps.
Changing a M103 pump is a frustrating job. You only want to do it once.
Elcheapo pumps use inferior plastic impellers.
When the pump itself leaks there is evidence such as :
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Yes, the original pump I had installed 2 years ago was a Laso. I did not see any signs of the drain hole weeping, but it was still under warranty so I had them send out another one. Ans yes, this is a job you do not want to do twice. Unfortunately for me I ended up removing and installing the WP 5 times until I finally took the Laso off, put on the spare one I had and used sealant on it. No more leaks. Sent the Laso back and got another one, used sealant on that and now I'm good to go. This is something I do not want to have to worry about during the summer