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    Coil recommendation? 3.7

    Took the boat out a again after having fuel delivery issues. Ran fine for about 20 min. Pulled over to the shore to try a different prop. Went to restart and I got plenty of fuel but no spark. It has pertronix and the original coil has a stripped stud so I put an epoxy filled msd marine coil on...
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    almost sank... didnt forget plug

    I figured ide share one of my SHT i performed while on the water. My friend had just bought a new to him boat and we check everything out and decided were got to go. So we get to the lake and i install the plug. we launch the boat, everything is going fine until i look back and see water...
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    mallory exhaust parts

    Im lookimg at a mallory elbow for my 470. Who makes their parts? There a lot cheaper then other brands. If anyone has any experience with their products can you provide some feedback?
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    New starter not fitting

    I bought a new marine starter for my 4.3 and it doesnt fit. Motor is a 89 and I bought a large body motor starter for mid 80s to 92 is what it says. Is it possible I need smaller starter. It doesnt set all the way against flywheel cover. Misses bolt holes by 1/4 or so. Will the newer mini...
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    470 not getting fuel

    Took my boat out for the first time today and engine ran great for about 30 min then sputtered and died. Checked everything out and it is not getting fuel. Check valve works in tank and fuel filter its new. Pulled off the pump (carter with bottom bowl) and the bowl filter its ok. When I move...
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    4.3 leaking manifolds

    So i just cant catch a break... I got another boat with a 89 4.3 merc in it and i noticed the manifolds leaking. I was told it didn't idle that good(sat for 2 years before this summer). I got it to idle nice, but when it warms up and idles for more then 20sec or so it starts to idle low and...
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    Mercruiser exhaust shutter

    Ive got a merc 470 and before I take the boat out for the first time I want to make sure the shutter is in good working order. I just had drive and bellows off and didnt notice pieces of the shutter in the exhaust. When its idiling most water/exhaust comes out side holes. Some comes out prop...
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    My Garage fab 470 alternator bracket

    Alternator conversion round 2. Figured ide post a pic of the bracket i made for my 470 alternator conversion. maybe it will give someone ideas if they want to make one on a budget. I originally had the low mount cast aluminum conversion which is junk( pulley starting to separate and bracket...
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    Mercruiser 170 timing cover

    Ive got a 86 mercruiser 170(470) motor im doing the cam seals on. i havent pulled the timing cover yet. I was wondering why they say you need to remove the front engine mount to do this? i looked at it and unless the alignment dowels are over an inch long ive got clearance all the way around it...
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    mercruiser 170 wont stop cranking

    when I went to try to crank over the motor and i got nothing. found out the slave solenoid was bad. bought a brand new one and it started cranking again. BUT something weird started to happen. When i crank the motor it would continue to crank for a second or two after i release the key(ignition...
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    86 larson 170 merc trim issues

    Im trying to get my 86 larson ski boat running again. Its got a mercruiser 170 with alpha one outdrive. First i need to know what color wires go to the trim gauge sending unit. Ive got a green and tan tied off together. There the only two wires really left that are close to the gauge(been a long...
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    New pump... new problem?

    So i installed a new water pump on my 85 mercury xr2 150. Old one was toast. before it would barley make pressure at idle. now its at about 10-15 psi at idle-2500k or so( readings are on a hose out of water). NOW, its weeping out of what i think is the poppet valve(starboard side bottom of...
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    cannot place order

    I tried placing an order and used the promo code for the sale this weekend and it says transaction has been completed but cannot be processed due to different number of items in cart and total items or somthing? Nobody is there when i tried calling so i was wondering if anyone else had this problem?
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    Weird spark rectifier problem merc 150...

    Im working on a mercury 150 outboard(1985) and im stumped. It sat for 2 years(ran fine before it sat). My buddy gave his boat to a relative and the guy did some work to it(spark plugs,ignition switch) and got it started and it wouldnt rev above idle(idles fine) and doesnt charge. I thought i had...
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