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    Timing on 81 Johnson 140

    Well I just checked the timing on my johnson 140 and in forward idle it’s supposed to be 4-6 degrees “throttle pickup”. I was at 16!! It was warmed up and in a tub of water. When I moved the timer base rubber stop forward till it hit, I was getting 4 degrees. How do I adjust this so the timer...
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    Timing V4 Joe Reeves method???

    I replaced my timing base recently on my 81 Johnson 140 j140tlcim as I wasn’t getting full spark. I started my engine and it’s running super high rpm. I figure i need to time it. The joe reeves method seems easy and straight forward. In his method he mentions “disabling fast start”....how do I...
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    Trick to getting cables in air silencer????

    I’m having a really hard time getting my cables to go back on and work properly. Feels super tight and jammed and won’t throttle when in reverse. When I take the cable out of the air silencer “cable slots”, everything works fine. What’s the truck to get these cables back in and working...
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    Took lower unit off and prop spins freely?? Out of gear???

    Hey everyone, I took my lower unit off my 81 Johnson 140 j140tlcim to replace water pump. I put it in reverse before removing but I just realized with the lower unit off the prop spins freely as if it’s in neutral. Did I accidentally shift it out of reverse??? If so how do I put it back in...
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    Telltale Pisser on 81 Johnson 140????

    Where’s the pee hole??? Can someone send me a pic. I looked at the parts diagram but it’s not a specific location. My old 77 evinrude didn’t have one but I’m pretty sure this 81 140 does. I checked everywhere on the engine, and starting to wonder if previous owner just stuck a bolt in its place...
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    Spark issue I can’t solve!!! HELP!!!

    I initially thought it was the power pack as a whole side of my 81 Johnson 140 would have no spark. I would move the power pack to the opposite side and that side wouldn’t have spark. I replaced the power pack with a new one and still had the issue. I ended up today replacing the timing base and...
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    No spark Johnson 140!!!! HELP!!

    I have a 81 Johnson 140. One whole side of the engine had no spark. I swapped the power packs and the no spark followed to the side with the bad power pack. Replaced it with a new one and thought I’d be good. NOPE! Then I bought another new one for the other side and still the same problem. It...
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    Milky oil SHOOTING out of valve covers!!!

    Video below. It’s a mercruiser 260/v8. Some people told me it’s a cracked block and I need a new engine. Others have said it’s just a head gasket. Any ideas before I spend the money on rebuilding a new block??? Dipstick is milky oil/water to the top as well. Hopefully someone has seen what is...
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    Differences between 86 and 96 marine 350

    My 1986 260/v8 block cracked and I recently got my hands on a free 1996 5.7 350 marine short block. I thought everything would be interchangeable and I could take stuff off my old engine and put it on my new while doing a rebuild on the new short block. I know I got this new engine for free but...
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    Mercruiser 5.7 rebuild

    I just got my hands on a 5.7 GM marine short block as my mercruiser 260 just cracked the block. I am planning on doing a full rebuild top and bottom end on this new block. I cant seem to find any rebuild kits that are specifically for a marine engine. Will just a regular chevy 350 engine rebuild...
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    engine block cracked, sbc 350 swap???

    I recently posted here and come to find out my mercruiser 260/v8's block has cracked. I have the opportunity to get a sbc 350 for cheap. Whats needed to do the swap?? Can I take all externals off my mercruiser and swap them onto the sbc?? Is it a direct interchangeable fit? Ive read about freeze...
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    oil/water mix everywhere!!

    hey guys first post. I have a 1986 Wellcraft 230 with a mercruiser 260/V8 that i just purchased. First thing i did was take it out and noticed slight over heating so i replaced the thermostat and the impeller. Took it out today for a couple of hours and temperature was fine the whole time...
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