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  1. H

    Engine alignment...

    Can anybody tell me where I can find the P/N for an alignment tool? I want to purchase a used tool for a V-8 Mercruiser (Chevy SB), Alpha 1 outdrive, 1988. Thanks, Bob
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    Need some good sound advice...

    Well after a 5-6 week break my helper and I went to the boat. We took the valve covers off and took 1 full turn off all the rockers. Hit the key and the engine turned over ever so slowly but still had the "clicking" of a dead battery. (both batteries show 12.5 volts and we had both on at the...
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    Electric fuel pump and switch...

    I did not want to be bothersome but I can't figure out this fuel pump and switch. I have a 1987 350 Mercruiser, what color wires go to the new two pole fuel safety switch. Should be two wires to the one pole and from the other pole, what color wire goes to the starter (Carter). Thank you.
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    Question on new Merc block...

    Hi men, I am putting my block together and there is a switch of some type attached to the crank housing behind the harmonic balancer. My old engine did not have such an item. My block is a 1987 Mercruiser 350, 270 hp. This switch appears to be the female end with two or three prongs inside and...
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    oil for new motor...

    My brand new 350 long block was delivered today from Michigan Motorz. They recomend using 20W-40 weight oil. I was at 5 different places today and none carry that weight nor even know where to buy some. If I put another weight oil in the motor it can invalidate my warranty. So what chain store...
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    Sounds crazy but who knows?

    Today we attempted to start the motor we rebuilt last fall. It cranked over fine without any noises, however, it would not start. It is a 1988 Chevy 350, 260 hp, nothing special about it. All we could get was back firing and coughing thru the carb. When we assembled the motor I know we turned...
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    Leaky windows

    "My front windows leak badlt. "My front windows leak badlt. I bought a couple tubes of silicone to put behind the windows when I seat them. Now, I've been looking for a substance called 10X but cannot find any. We always put it on the seams where the caulking was after the caulking was dry, as...
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    1987 350I need wiring help

    "Can someone please post a site where I can copy a wiring diagram for a 1987 Mercruiser 350, 260 hp. I need the continuity showing the different ground areas as well as the main wiring harness. Thank you, Bob"
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    Update on my 350

    "We tore the engine down this "We tore the engine down this morning and found the upper half to be new! The heads were in excellent condition as were the valves. The head gaskets were not blown nor wore. The rockers were all in excellent condition and adjusted well. It was obvious to all that...
  10. H

    A quick question

    "Hi men, I am tearing my 1987, "Hi men, I am tearing my 1987, 350 CID Mercruiser apart. The engine is still in the boat. How do I get the bottom bolt out of the starter (it connects the starter to the block). Is there a secreat way or do I need a special wrench? I can't see lifting the entire...
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    350 CID

    "Well men, after 4 long years "Well men, after 4 long years I think we have discovered what ailes my engine. I had 4 mechanics look at it and none could figure it out until I ran into a retired race car mechanic that raced small block Chevy engines. It turns out that the loss of power and rpms...
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    Battery Info 1987 350

    "Hi men, I have a 1987 350 CID, 260 hp that needs a set of batteries. Does anyone know the "cold cranking" amps needed for each? If I remember right they should be at least 650 amps each. Also, how about regular car batteries as opposed to "deep cycle" marine batteries. Thank you, Bob"
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    Safety Switch

    "Hi all, Suddenly my 1988, 350 "Hi all, Suddenly my 1988, 350 CID, 260 hp won't crank over. Both batteries are fully charged. When I turn the key to start there is no clicking or anything at all. Last week I noticed that once or twice I had to move the shifter handle a couple of times to get...
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    Overheatingneed help with the outdrive

    "I have a 1988 350 CID that is "I have a 1988 350 CID that is still overheating. I have replaced most everything and I think the problem is barnacles and slime inside the outdrive. Does anyone have any knowledge of how to disassemble the outdrive so I can scrape the barnacles and slime out...
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    Two Questions

    "Hi everyone, I have two quest "Hi everyone, I have two questions that I hope you men can answer. 1- I'm still overheating. It's a 350 Mercruiser, 1988 with an Alpha-1 outdrive. It is not a closed system but uses raw water. I replaced the Thermostat with a new one and still have the same...
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    350 Mercruiser

    "OK, I have the cooling and ch "OK, I have the cooling and charging systems repaired thanks to you men. Now if someone can tell me about a power steering leak I'll be in good shape. The power steering system has a belt and the fluid reservoir behnd the pulley. It looks like an auto type setup...
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    My 350 Mercruiser is over heating

    "Who can give me some advice? "Who can give me some advice? I start my engine and if I leave it run at idle (700 RPMs) it heats up to over 180*. Then if I raise the RPMs to about 1500-1800 it drops right down to about 140*. Over the winter I had the empeller in the outdrive changed but it...
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    Mercruiser 350 CIDElectrical problem

    "When running my engine last w "When running my engine last weekend the gauge which shows how much the engine is charging the batteries was at a solid 13 volts. Now this weekend when I started the engine it only climbs to "just beneath" 12 volts. How do I check to find out which is bad, the...
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