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  1. Q

    Mercruiser 350 mpi hydraulic locking

    Hi all. Needing some advice. This one has me stumped. A friends engine recently locked up when out. Was at high speed, slowed down and stopped it. Went to start it and it locked up. So having spent some time at it myself, we have ruled out the manifolds and risers. They have been pressure...
  2. Q

    Maybe daft idea. 5.0 to 6.2

    So looks like I have the chance at getting a 6.2. There seems to be no ancillaries with it or even the fuel system or ecu by the looks. Need to check. It was a 6.2 mpi but the seller used the stuff for new engine. What would i need over and above what my 5.0 mpi has to make her run. I’m aware...
  3. Q

    Alpha one anode broken again.

    So for the second time in 4 years my anode situated behind the prop thrust washer on exhaust outlet has fallen to pieces and came loose. It’s happened twice now. The anode isn’t in bad shape really. Just that it’s gone thin exactly in the same place as last time. Where the two stainless bolts...
  4. Q

    Thoughts on my T Stat.

    Mercruiser 5.0 MPI t stat original and never been changed. Paint still on the seals of the housing. The t stat is by all indications operating, but I’m beginning to think the engine runs too cool. On plane cruising it will sit around 152o. Prolonged slow displacement speed it will raise and...
  5. Q

    Puzzled around a 350 mpi. Someone tell me.

    So recently I got egg on my face on another post about something or other to do with another owners Merc 350 mpi. He said his manual stated the top of the Rev range was 5200. I argued that it should be 5000. Turns out that the exception to the rule is with one type of this model of 350 mpi. The...
  6. Q

    Quick puzzling question about 350 mpi

    So recently I got egg on my face on another post about something or other to do with another owners Merc 350 mpi. He said his manual stated the top of the Rev range was 5200. I argued that it should be 5000. Turns out that the exception to the rule is with one type of this model of 350 mpi. The...
  7. Q

    Taking water on....sometimes

    Hi all ill keep it brief and hoping the collective might think of something I haven’t. Merc Alpha 1 drive and 5.0 Mpi occasionaly last year I suspected the boat was taking on water. I’d run the bilge pump each visit to check before lifting the hatch for the usual pre run checks. Sometimes the...
  8. Q

    Mercruiser mpi no start

    Hi guys Most if you will have heard me banging on countless times about why the merc mpi won’t start, but turns over seemingly fine. So just to prove a point this week (not saying it’s the case for all, but worth considering), on a lovely spring day and on a whim without the boat being touched...
  9. Q

    350 mag mpi issues

    so guys it’s now about time for me to deal with my friends engine issues. I’m decent enough with my own current and precious engines. Mpi 5.0 and all variants of GM engines before that in carb form. This 350 mpi with Bravo 3 is a new challenge. First issue (previously touched on last year) the...
  10. Q

    Yamaha 115 v4 powerhead wanted

    don’t suppose anyone has a good complete of the above ? Really struggling to get one here and rebuild parts are as dear as a running engine. Thanks.
  11. Q

    Wee video of the boat last year.

    Wee clip of the boat passing a friends Doral on our way home from the islands. Not sure what pace she saw here, but the big Doral is just shy of 50mph gps wot here. More trim required you think ? Haha. The Enertia prop allows so much lift. Great prop. https://youtu.be/KMNabCi3i9I
  12. Q

    Etech 25hp limp mode

    Hi a friend has just inherited a 25 etec engine that was rarely used and not running well. After replacing the impeller and thermostat, servicing etc before even running it, he tested it on his 13ft dory. It didn’t go well. Seems to be limiting power and maybe only achieving half throttle or...
  13. Q

    350 mag MPI drain plugs

    right guys....the nice chap that I am means that I usually end up taking on maintenance duties on all my friends and family boats. New to my friend is a maxum 2400 scr with a 2003 350 mag mpi. Mom going to winterise it this weekend and only had a quick look at it without getting down and dirty...
  14. Q

    350 mag mpi overheat

    hi so last week my friend (not mechanically minded) took one last run in his boat. After 20 mins he called me asking if a burning rubber smell is anything to worry about ! i asked him to check temperature. Was ok at that instant. Masked him to open engine hatch and check the belt. At that...
  15. Q

    Wee picture of the boat.

    Only been out the water a week...missing her already. Wee picture of her at full chat passing a Chaparral camera boat which was doing 50...as if it was sitting still...haha.
  16. Q

    Mercruiser MPI shift interrupt

    Hi after a favour guys... would somome possibly be able to send me a video of their merc 350/5.0 MPI (or identical set up) shift interrupt micro switch being activated as it’s shifted into gear please ? Mine was causing problems in the season and activating when at WOT. Its now apparent that...
  17. Q

    ‘85 Yamaha V4 115 rebuild

    So, a few questions and some advice needed... the time has come for me to eventually dig in and make a start on rebuilding my recently acquired classic boat project and engine. Engine is as stated and briefly I’ll state that the reason for rebuild is that it took in water contaminated 2 stroke...
  18. Q

    Yamaha v4 115 130 s stroke Manual

    Hi guys hoping one of you have a link to a worshop manual for my ‘85 Yamaha V4 ? I need to rebuild and can only find one in German. Thanks
  19. Q

    To rebuild or not to rebuild

    ok so I’ve recently acquired a stunning and rare original CVX16 roger Clark glastron with the original yam 115 v4. Normally bomb proof but the last short term careless owner allowed the oil tank to get filled with water after letting the bilge fill way too high with rain water. He ran it until...
  20. Q

    Winter project Glastron CVX

    Just me boasting how lucky I am to have got a hold of a stunning Glastron CVX16 roger Clark UK version. Needs a polish and some engine work but all original and in tact. Anyome any experience with these ? What are they like to drive ?
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