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    Adjusting maximum advance timing at high RPM

    Boat-1985 4.3 GM262ci MCM205 4bbl My Thunderbolt ignition system took a dump on me so I installed the Delco Voyager EST Marine Electronic distributor kit. I have my base timing set at -4 based off of their charts, which I am assuming means 4 degrees before top dead center, 4 degrees to the...
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    Wont start, back fires a lot, after installing new ignition system. LOST!?!?!!

    1985 VIP Mercruiser MCM 205 GM 4.3 V6 Ok here it is, I just replaced the old Thunderbolt ignition system after troubleshooting it FOREVER, narrowed it down to a faulty system. So I bought the 4.3L Delco Voyager EST Marine Electronic Distributor Kit from Michigan Motorz (new distributor and...
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    Electronic Ignition Conversion kit........

    I have a 1985 VIP Mercruiser MCM205 4.3 GM V6, after painful and annoying troubleshooting, it calls for a Ignition amplifier replacement. Instead of purchasing a used one for hundreds of dollars I am going do the 4.3L Delco Voyager EST Marine Electronic Distributor Kit...
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    Need an New Ignition Amplifier? No Spark...........

    I have a 1985 Mercrusier MCM 205 4.3 with the Thunderbolt IV Ignition. The problem started on the water last summer. Turned off the boat, and when I tried to start it back up it just cranked and cranked. Let it sit for a lil and it started back up, that day no more problems. Next time on the...
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    Reverse works fine out of water but Not in the water?

    My problem is that Forward and reverse work fine with muffs on and running in the driveway, doesn't die when shifting it from N to D or N to R, but when I launch the boat the damn thing always dies putting it in reverse! But once I have been on the lake for a couple hours reverse works just...
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    Exhaust bellow keeps tearing, exhaust too hot?

    I've got a 1985 Vip with a 4.3L mercruiser MCM205 alpha one I think. About one year ago I replace both my exhaust bellow and my driveshaft bellow along with my impeller, those flapper things, and a lot of other rubber on the engine. I live in AZ so rubber doesnt last for s**t out here. My...
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    Slips out of gear when turning at high speeds??

    So i was out boating today and my boat seems to be slipping out of gear when i turn at high speeds. I noticed it when i am pulling a tuber or skier. And i noticed it once not pulling a skier or tuber but when i hit a big wave and got a little air born. Right when I'm about half turn the boat...
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    No reverse just revs, forward works fine

    I bought an old fixer upper 1985 VIP 19' 4.3L mercruiser mcm205 262cid. I took it on the lake today to find out that reverse never engages only forward does, so drove around a little but then pulled it out the water. I recently replaced the impeller and gaskets. Adjusted the two throttle cable...
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    Correct engine temp.?

    I was running my boat with the ear muff things today and they slipped off for about a minute or two. I quickly turned off the boat and looked at where the water enters the stern drive and saw a little smoke leaving it. I put the ear muffs back on turned the water on quickly. So now my...
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    Engine stalls in forward but not in reverse??

    I've searched and searched all the forms and can not find any help. I have a VIP 1985 4.3 mercruiser mcm205 and after replacing the water pump impelller and gaskets on the outdrive i found out that if i gas it real quick in forward it dies. I can slowly give it gas to get it going but no...
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