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kenny nunez replied to the thread Keep blowing my starter solenoid up..

A bad ground will also cause a voltage spike.

Jul 30, 2025
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kenny nunez replied to the thread Engine, Carb or Prop? need suggestions or ideas please..

I just did a search and the 1986 4.3 base timing is 6*. All your other specs are correct. Are you sure that you have a genuine Marine...

Jul 28, 2025
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kenny nunez replied to the thread MC-1 Drive Dog failure?.

Great save on the water pocket bolts. After having ruining a case many years ago I have had some success afterward by first breaking...

Jul 27, 2025
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kenny nunez reacted to alldodge's post in the thread MC-1 Drive Dog failure? with Like.

I'm not the best guy for how to weld a nut on stainless studs, I've only done steel. Machine shop should know how So far as shimming...

Jul 27, 2025
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kenny nunez replied to the thread Volvo penta trim relay issue.

If what SD suggests and the problem persists then it is possible that the brushes in the motor are stuck or the springs that tension the...

Jul 26, 2025
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kenny nunez replied to the thread '71 Starcraft 21'. I/0 Merc. Spark interrupter switch???.

Your problem is in the upper gear housing where the shift slider travels for reverse. The switch is not the problem. There is a build...

Jul 26, 2025
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kenny nunez replied to the thread Grease fitting 76 OMC 175.

The thread pitch is 1/4”X 28 for Zerk fittings. Do not worry about replacing the red plastic plug or trying to find a new one. 400-800...

Jul 25, 2025
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kenny nunez replied to the thread Mercruiser dies after getting on temp.

Before starting the engine connect a volt meter to the +side of the coil. Set it up so that it stays connected and run the engine until...

Jul 24, 2025
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kenny nunez replied to the thread Stringer boot recommendations?.

You probably have the electric shift seal which is #313080. Sierra #18-2767 What you need is #909527 Sierra #18-2768 for 400-800 drive.

Jul 24, 2025
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kenny nunez replied to the thread alpha 1 won't go into reverse.

Another place to look is the pocket that the slider travels in for reverse in the upper gear housing. Crud will build up in there and...

Jul 21, 2025
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kenny nunez replied to the thread 1972 Mercruiser 165..

If they are stern drive engines you might have a problem separating them from the intermediate housing. Those particular models tended...

Jul 21, 2025
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kenny nunez replied to the thread 1972 Mercruiser 165..

FW cooled engines are a safe bet. The OMC exhaust manifolds enter the exhaust down pipe the wrong way for Mercruiser. You will have to...

Jul 21, 2025
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kenny nunez replied to the thread 81 omc sterndrive.

Early OMC 400&800s had hydraulic shift with an oil pump in the lower gear housing. Then they went to non hydraulic. The shift...

Jul 21, 2025
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kenny nunez replied to the thread Engine issue— Mercruiser 5.0L, 305, 2 barrel mercarb.

Try running the boat with the engine cover open the same exact way to see if it continues running. Or with the bilge blower on. It...

Jul 20, 2025
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kenny nunez replied to the thread Weak spark, no start after bump in road 86 OMC 4.3.

NLA Marine205 984 4400 has a used distributor for $160.00 that has the original ignition points and condenser. Part # 0986060. This is...

Jul 19, 2025

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