doinguptheboat
New Member
Hi all,
I'm having terrible trouble accessing some areas on the port engine of my boat (Merc OM636s). It seems to me to be almost impossible to get to the fresh water pump to inspect/change the impeller. I also need to get to the pump mounting bolts as I want to change the pump and alternator belts. I also have new alternators to fit, but can't seem to reach the lower mounting bolts. The whole arrangement seems crazy! I cant reach from the top, I may be able to crawl in beside the engine, but I'd have to - at the very least - remove my black water tank to stand any chance - I'd rather not! Spoke to one marine engineer with a lot of experience of these boats - he said changing impeller is the worst job he's ever done and changing alternator was the second worst!
Interested to hear if anybody has any experience with this boat/engine. I feel like I need to find a three-year-old who's handy with a spanner!
Thanks in advance
Simon
I'm having terrible trouble accessing some areas on the port engine of my boat (Merc OM636s). It seems to me to be almost impossible to get to the fresh water pump to inspect/change the impeller. I also need to get to the pump mounting bolts as I want to change the pump and alternator belts. I also have new alternators to fit, but can't seem to reach the lower mounting bolts. The whole arrangement seems crazy! I cant reach from the top, I may be able to crawl in beside the engine, but I'd have to - at the very least - remove my black water tank to stand any chance - I'd rather not! Spoke to one marine engineer with a lot of experience of these boats - he said changing impeller is the worst job he's ever done and changing alternator was the second worst!
Interested to hear if anybody has any experience with this boat/engine. I feel like I need to find a three-year-old who's handy with a spanner!
Thanks in advance
Simon

