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  1. Q

    Clearing salt build up from block

    Hi Any good ideas around clearing the cooling passages of salt build up on an engine I now own ? It’s an 8hp Yamaha 2 stroke. Vinegar I hear may be an option ? Thanks.
  2. Q

    Baystar steering

    So I’ve cheaped out and went for a great deal on a baystar system. Despite a few pros saying I need a sea star ideally. I’ve no doubt they are correct, but the price of them is a hard one to take and thought I’d try this first. now when you read the next but I can already hear you all shouting...
  3. Q

    Seven Marine no more !!

    Such a terrible shame !! Hopefully not a sign of things to come !! https://hauloverinlet.com/discontinue-seven-marine/
  4. Q

    Gen 1 350 mpi 99’ block compatibility

    Hi guys. So a fella I know needs another block to solve an issue where his currently suffered from the casting on his block where starter mounts, has failed. It’s a vortec 99 early mpi 350. Does he need another vortec block or will earlier blocks take all his top end gear and all that ? Thanks.
  5. Q

    Scarab 21 excel and Baja 252 info

    Hi all So being over in the U.K. such things as the above two boats and also the Chase 550 I currently own, are very rare things...and such boats only make it over here by means of someone specially importing them over. So details are vague here at best. So hoping someone can answer a few...
  6. Q

    Anything I’m missing for getting my pride and joy a run after storage ?

    Hi guys. So I’m getting the wee monster a run this weekend after being stored for over a year now. Thought it best before another storage term. She was well stored and oiled etc there. I will do the usual cranking over with the lanyard pulled before firing her, just to get oil around her first...
  7. Q

    Mercury 2.5 to 3.5 2/ conversion

    Hi anyone done this ? Looks like it’s just the throttle bitterly actuator that restricts how far it opens and lets the carb breath. Noticed the throttle lever doesn’t travel as far as the 3.5 too. all else between them is identical as far as I can tell.
  8. Q

    Yamaha 225 v6 2/ water exhaust leak

    Hi all. Hoping you can help a friend out. On the first run out for a while, it was obvious that there is cooling return water leaking out the top of the mid section below powerhead to mid area. Just below the lower casing. Nothing coming out idle relief twin ports on mid section and no...
  9. Q

    Yamaha Stern Drive prop hub

    Hi. Apologies if I’m breaking the rules here. I’ve also posted similar in the other outdrive section too. Hi not at all familiar with these. Going to try and prop one well but wondering about prop suitability. Presumably these use a different hub kit than the usual mercruiser ? Defo 15 spline...
  10. Q

    Mercruiser 350 mpi issues again

    Hi. Engine is a 2003 350 mpi and B3’s. popping lean at full throttle and only getting to about 4000 rpm. New cap and rotor new plugs proved fuel supply with using remote tank and still doing it. no faults logged on rinda and fuel pressure fine sitting running at dock. thinking best case...
  11. Q

    5.7 Holly carb repower issues.

    Hi all. Hoping you can help a self confessed holly carb amateur here !! long story short and after many many things tried so far... Having a couple of issues remaining still after getting lots of issues sorted out already. I won’t go through everything but here goes 350 GM repower engine...
  12. Q

    Inbox messages not legible

    Hi. Hoping someone with more tech ability than I can tell me why I can’t read my messages. When trying to read them, it flashes really quickly between the message and the previous page. I’d need to have matrix style slow motion vision to be able to read it. Thanks
  13. Q

    150 V6 2 stroke rough in gear at idle speed

    Hi all. A friend just bought a new to him boat with a mariner magnum 150 v6. Same as the merc 150 v6 2 stroke. Will likely be an early 90’s thing. At idle it has higher rpm than it should. First thing I noticed, so it’s quite violent going into gear. At a guess it will be doing about 1200 rpm...
  14. Q

    Impressive tempest plus result

    Hi all. Just thought I’d share some findings from a prop testing run today on a friends boat. Boat is a regal 1900 fastrac bowrider Engine mercruiser 4.3 mpi Alpha 1 1.61 ratio test run as it was when purchased last year; Prop 21” 4 blade spitfire all 3 onboard and half tank of fuel rpm...
  15. Q

    Mercruiser 4.3 mpi rattle when stopped

    Evening all Any ideas what this noise is when engine is shut down ? Almost thought it was the lifters or flappers...but listening again. Not sure. Coming from top end and perhaps the rear. Hard to tell. Doesn’t do it when running all through the rpm range all ok. Just when shut down. Any...
  16. Q

    2016 merc 115 CT 2.1l trim issue

    Hi Just a quick one to ask if I’m right in thinking that there is a known issue with these engines not holding trim position and the pump passing to allow the engine to drop over a short period of time at rest, and also not hold a trim position when under load. I’ve now read a few reports of...
  17. Q

    The Enertia...yes, again !!

    So...I know I do always go on about these too much, but having just recently looked through my GPS tracker app from last year, I saw the results recorded from one of the last times I used this boat before putting her into storage, in favour of a more useable cuddy with fuel sipping outboard...
  18. Q

    Tell me about poppet valves

    So...although I’d like to think that I’ve acquired a fair bit of general know how over the years and perhaps even might say that I spent a decade as a marine engineer, (all be it at sea and with much larger marine diesels and anything else that’s on a ship)...currently still an engineer in...
  19. Q

    Power trim shuttle valve passing on recent mercs

    Hi Some May remember me posting about me suspecting that I had a relief valve opening when trimming up towards the upper limit, on my new model merc 115 2.1l CT. I didn’t think too much of it, not being used to an outboard in recent times...but was further concerned when I noticed the outboard...
  20. Q

    Really miss not being able to go boating !

    This lock down over here in the U.K. is a real nightmare. So hard not being able to go boating...especially after waiting all winter. I’m going to have to wait to hear this noise again, for a little while yet !! Miss the primeval noise of this wee thing ...
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