Messages

Hi everyone. I replaced my Sherweood raw waterpump on my M25XP a few weeks ago. Note for anyone doing that, it sits different and the brass fittings coming out of the pump and the existing hoses have to be altered somewhat. So pick up a straigh fitting and some longer lengths of replacement hose.

Anyhow, my old pump was weeping, although the engine was running at proper temp (165).  After the replacement I ran the engine a while and all seemed normal and I was getting water flow out the stern. I took the boat out a week or so later and it ran warm (180 in short order) - there appeared to be water flow out the stern, but seemed possibly light. Today I removed the impeller and checked everything out. All seemed kosher. Upon start of the engine I got no water flow out the stern. Next steps???

Thanks. I was worried about the 2 bolts, so that makes me feel better. The slight mod makes sense the way the pump and the elbows were facing seemed off. Will take a look at that Wiki, must have missed that specific one when I was digging around.

I know this topic has been discussed on the forum, but I did not notice my particular question. I purchased a 1990 C34 this June. The surveyor and I noticed some water leakage at the Sherwood pump. My engine is the M25XP. I ordered the Oberdorfer replacement. Today I finally got around to doing the swap. However, after removing the Sherwood, I noticed that only 2 of the bolts from the Sherwood thread into the Oberdorfer and onto the engine. The other 2 holes in the engine are different and I am not sure they are designed for a bolt. I think I may have not paid enough attention (and did not take a photo) before pulling the Sherwood. I know the Sherwood had clamps that held it on. Should I use those on the Oberdorfer as well?

Also, the only way the Oberdorfer fits with holes lining up, etc. is with the Oberdorfer sign upside down and the intake and outtake facing in different directions than the Sherwood did. I want to make sure the hose that went to the upper part of the Sherwood also goes to the upper part of the Oberdorfer.

Finally, because the flanges are located differently it appears my old hoses might not fit/make it. Did anyone else run into that issue?

Thanks for any help. Well aware I am a glaring novice.