View Full Version : Raw Water Pump Issue

08-11-2011, 01:41 PM
So I am trying to replace the entire raw water pump on my '95 PS190, LT1 Engine. I ordered the first pump, and the local dealer sent me one for a later model boat- the flange holes didnt line up! After convincing him that there was a specific pump for the LT1 and LTR, he reordered and I proceeded to remove the old one again, and guess what- the new one does not line up either! It is the same model pump, spoke directly with Inmar, and they verified that the pump was correct for the engine serial number. Inmar stated that if they had a "bad run" of pumps, he would have more people calling than me. I can place the old pump and new pump back to back, and only insert 2 bolts through the mounting holes. The third hole is off by about 1/4 of an inch.

Has anyone else had this problem?

Should I just rebuild the pump?-- It is leaking around the shaft seal.

08-11-2011, 01:59 PM
I just bought one from Ski DIM about 2 weeks ago, it fit perfectly. Have you checked all positions? I had to rotate mine till I found the right pattern.