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Serious water pump leak. 200 1990

posted by  Peetz on  Sun Feb 9 20:58 CST 2014
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last visit: Thu Oct 9 10:18 CST 2014
[RELATED]

The B21-23 engines used a pump with one more bolt hole than the B230 engines. Perhaps you've got a pump for the earlier engine?
Whatever pump has to be levered gently up against the underside of the head once the two nuts and washers are on the studs. The top of the pump body also has to be parallel with the underside of the head.
The seal on the heater tube should be placed right on the end of it, and silicone grease used on the seal and the bore in the pump. As the tube slides into the bore with the seal on it the seal will find its happy place. If you force it at all the seal will fold over and that can cause a big leak.
I mention because you said there seems to be an extra hole in the new pump.





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