Recent content by alex3012red

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    in the process of changing out my 5.0 merc. vortec for a 5.7 vortec truck engine

    Ive went thru a lot of post on differences, i think i got it, my question is does the 5.0 cam work on the 5.7, both are vortec, just thought i asked, since iam taking the heads out to change the gasket. i can do the cam if it works. thanks in advance
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    97 maxum 1900sr 4.3 or 99 bayliner 2050 ls 5.0?

    looking for my next boat, came across these 2, the 97 maxum with a merc. 4.3 , turn key condition. i would rated at 8 out of 10 condition overall,asking 5k (offered 4k), on the other hand the 99 2050 with the 5.0 has closed coolling but is not a turn key boat, batt. dead, weathered seats and...
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    need advise, on replacing a 02 vortec 5.0 with 5.7

    i have a cruiser 23' with a mercruiser 5.0 vortec engine 2 barren carb, bottom end is shot (2 windows on block) top end is good, my question is if i put a 5.7 vortec engine from a truck, suv, besides the plugs, can i still use the 2 barrel carb/intake? or it wouldn't be enough for the 5.7? do i...
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    mercruiser 3.0l overheated, then back to normal! well kind off please help..

    Hi to all first of all, haven't been on here in a while, haven't been using boat much, sat for 12 months. never had problems at all till now. 300hrs on motor saltwater used all of its life, took it out yesterday, as usual started right up, put it in the water let it idle for about 25 min. temp...
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    enginge swap 470 to 4.3?

    finally getting rid of the 3.7, repowering with a mercruiser 4.3 complete with outdrive, i currently have the 3.7's wich has a diff ratio, is there any other things i need to replace. both engines are 88's, with alpha gen 1 outdrives. anybody done this swap? i do have plenty of room for the...
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    Bought wrong manifold, carb wont fit?

    i have a 3.0 mercruiser 1992, bought the exhaust manifold, to make the story short can't return, carb is a merc carb, and it won't fit the holes as this manifold is for a rochester carb. Does anybody sell an adapter? or any suggestions don't want to spend a fortune on a carb I just had the merc...
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    Yes water in my oil!

    93 merc. 3.0 done a head job, new valves,gasket, put it in the water ran fine next day had a little water on #4 cyl., enough to have a bad idle,and to start making my oil milky on top end.my question is the water coming from the riser did not replace that or manifold, how can i check them for...
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    1988 merc. 470 help needed 3.7 Temp to hi.

    I have a 470 that was rebuilt,(new bearings .010, pistons are std,rebuilt head, new seals with reedy sleeve on water pump shaft. cleaned out 4" heat exchanger.(took ends off looked o.k) pressure washed it. new thermostat 160 deg. new impeller. no leaks either oil or antifreeze on cooling system...
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    4.3lx ignition problem please help!

    I have a 4.3 LX thunderbolt ignition ,just rebuilt, sounds great out of water. when you put it under load the rpm read over 4800 and the engine starts to cut up. but the engine doesn't sound like it close to that rpm. it's more like 35 to 3800 rpm. from get go it's fine as long as the rpm stay...
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    Need Help with 4.3lx Rpm readings too high

    rebuilt engine, put back on the boat and sounds perfect, But took it out on the water and the rpms seem to read a lot higher than they really are, and when it reads 5000 rpm, it start to cut off, and the engine is not close to 5k its more like 3k rpm.I could only cruise 4800 rpm(It's more like...
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    Infamous 470 3.7lx safe operating temp.

    I just finished rebuilding a 470, and started right up, got 180 deg. temp idling, and comes down to 165 170 rev to 2000 and up rpm. has new impeller, timing is set at 4 deg. I have not taking her out on the water, this is just with the hose. Does it sound right 180, should i be concerned. 88...
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    Anybody have a wiring diagram on 4.3lx 92'

    Need some help on putting wires were they belong, the ones on the dist. and shift interrupt, and a couple of ground. I just don't want to find out the expensive way. thanks
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    Engine swap 3.7 for a 3.0lx? Has anybody done it?

    I have a bad crank on my 3.7, for my 88 IMP 22fish (3000 lbs).I have a 3.0lx 93' turn key ready. will it work on the same outdrive Iam not sure of the ratio. but it's a alpha 1. will my boat plane. Has anybody done a similar swap.
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    Need help! Water coming thru steering arm

    I have a 92' bayliner 24'52 classic, w/mercruiser 5.0 lx alpha gen II. I noticed that water was entering the hull thru the steering arm only when i rev the engine. Boat is in the marina (salt water), i also looked at the outdrive and the mercruiser sticker on the transom plate above the water...
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    92' merc. 5.0 2brrl carb to 4brrl.? HP

    Trying to get more hp out of my 5.0 has anybody done the change. I have a bayliner 24'52 w/a 5.0 and alpha leg. its a heavy boat for the engine I've read on bolting on a 5.7. I'll try that when my 5.0 goes out. will it burn alot more fuel, I just want quicker plane time. and maybe a couple of...
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