1991 MAZDA VAN
305,000 MILES
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OZZBO
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This is a E 2200 LWB van, with the R2 Diesel motor.

The injector pump is leaking diesel from the distributor housing on the rear of the injector pump. I believe there is an O ring between the two housings (main and distributor housing)

My question is: can the O ring be replaced without removing the injector pump from the engine?
Dec 9, 2012 at 11:26 AM
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KHLOW2008
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Depending on where the leak is coming from, it most probably requires removal. Only top part of housing, hose connections are adjustment screw gaskets/O'rings can be performed on vehicle.

The injection pump has to be worked on under very clean conditions so make sure you clean up everything before attempting removal/repair.
Dec 9, 2012 at 11:31 AM