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Hey mate. Did another check over the weekend like I said and I was amazed!! Turns out, my tranny was overfull! A mixture of fluid and water it looks like. Sort of sludgy but liquidy as well. It all sort of popped up when I took the cap off of it. Im guessing I should drain and clean out with...

Thanks for the info. I have a half closed cooling system, so no SS plate is needed. Also, there was hissing and spewing from the cap when I removed it (bad Idea I know now). The fluid I put into the heat exchanger comes out automatically in the exhaust on the side of the boat. Clear as day the...

Hi guys, Just doing a quick check to see if I've missed anything. Have twin merc 454 7.4l MPI's with Hurth 630 tranny's. 2 problems: 1, I top up the heat exchanger with the proper fluid but as the engine runs it comes out of the exhaust. Check the heat exchanger after the run and it is topped...

She is in nuetral. Engine tries to start, but doesn't. I did notice the plugs are a tad bit dry, actually completely dry. Begining to think something is up with the fuel now. Not sure why given that the previous plugs were wet and she started and ran before. Have filled the tanks up just to be...

Ok guys. Turns out the water circulating pump was finished. Have changed now. Also found the problem as to why there was no raw water being pumped, I connected the wrong hose. Intake to the outtake on the pump. Also fixed the gear cable. Unfortunately now now the engine will not start at all...

Ok guys. Had a look yesterday and turns out my timing was way off. I've since moved the distributed back a bit and bam, she starts! Frantic with excitement, i did little celebration dance only to find 3 new problems! Losing coolant, no raw water being pumped and my gear shifting cable broke...

Go you covered. Will look at today.

It might not be to be honest. But will that effect the way she is starting like the batteries are dead? will check and clean that terminal tomorrow and let you know my findings. Thanks

Stupid me, engine started before but because the run of it was harsh, partly because distributer was not lined up, could this also in any way have an effect on my situation?

Also failed to mention that there is a small puff of smoke that comes from where the red battery wire connects to the starter.

Hi all, have twin merc 454 mpi 7.4l inside engine room. Starboard starts just fine but port wants to start but doesn't. Port engine cranks over but not as it should. Almost as if the batteries are dying but they are good batteries. Even ex hanged the batteries with the starboard engine and...

H iguys, Straight to the point. Last season, shafts spun normally. Only thing on my starboard shaft I notied there was an excessive dripping that annoyed me, so I tightened the stuffing box so there was no more driping. Unfortunately, after reading other posts I found that some dripping is...

Hi all, I have a pair of drop in Mercs 7.4L MPI's 2001 models in my 390 Sea Ray 1989 EC. Just over 600 hours on each and neither has ever had a problem before. I've seen and been on board of the previous owners boat and they are emaculate as to condition and running. Both are now in my boat...

Sorry for jsut coming back all, but i have since resolved this issue. Thanks Again Guys!

Quick question, how can I build up the existing mounts? Also, where can I get a set that will allow for more clearance room?

Morning. Do you think you can send me a pdf of the #9 shop manual? Wen

Just spoke with the mechanic. He said my 2001 mercs are both LH rotation which is why i need the Hurth trannys. He also said becasue of this I would need to remount both engines in order to get the right alignment between them and the couplers on the shafts. So do not want to do this because of...

Swap..........hmmmmm, never thought of that. Will check that out also. Went over to the mechanic this weekend, busy of course so no update as yet. He hasn't even looked at the engines yet. Im also curious if there some type of extender I can purchase?? Also, seeing as these are newer engines...

Thanks guys!! Most appreciated!! Going over to the mechanic to discuss today. Will let you all know the outcome. Again thanks for your input.

Guys, needa bit of advice. I have a 1989 390 Express Sea Ray. Have been running original gas 454 Merc engines for over 20 years until of late. Got a pair of replacements Mercs that are fuel injected, I beleive somewhere between 2001 and 2005, not one thing wrong with them. Went to a mechanic to...