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#1
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200HP Mariner Problem
My 1994 Mariner 200 FI started running a little rough Saturday. Nothing
major, but then my last motor started out as nothing major too, and I still haven't got it running right. The first symptom I noticed was the tach wasn't working. I still seemed to have plenty of hols shot, but that motor is way under propped so it would take a pretty bad problem to be really noticable. When I went over another boat's wake and smaicked against the water the tach started working again. I felt under the dash to see if it was a loose wire and if wiggling the wires would duplicate the problem, but it did not. Another time I noticed the tach out I cut throttle and then brought it back up again and the tach started working. Shortly after that I started to notice a miss. I would be cruising at around 50 in the 5000RPM range and it would have a slight loss of power like a cylinder quit firing and then start back up again. What would you suggest? Fouled plugs? Bad Pack? Bad Coil? This engine has run fantastic everytime out until saturday. When I finished up for the day and idled into the harbor it seemed to be idling a little rougher than normal. Also, it seemed to be blowing more smoke than normal when I first started out in the morning. I figured that was just from the 5:30am start and it being a little cooler than usual at about 52F outside. -- Bob La Londe Yuma, Az http://www.YumaBassMan.com Promote Your Fishing, Boating, or Guide Site for Free Simply add it to our index page. No reciprocal link required. (Requested, but not required) |
#2
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200HP Mariner Problem
One of the stupidest things we ever bought was a motor with a 400V
alternator running in salt air with its unprotected, soft iron core sticking out against a bunch of whirling permanent magnets......just like 1939...... My 175HP Merc Sport Jet V-6 went through 3 sets of OEM coils before I got wise and bought an aftermarket from someone I never heard of. Fed up with Platinum Mercury Service, I bought the flywheel puller to get the magnets off it so I could change it, myself (after set 3), GREASED the exposed ends of the core so it wouldn't corrode up into a shorted core and have only used the puller ONCE..... If you wrap a few turns of cheap, enameled wire around a core and coat it with plastic, you can charge 5000 times its manufacturing cost and some boater will pay it. I'm convinced that is why they are "built to fail".......dammit....(d^ On Mon, 03 Nov 2003 14:38:24 GMT, "Bob La Londe" wrote: My 1994 Mariner 200 FI started running a little rough Saturday. Nothing major, but then my last motor started out as nothing major too, and I still haven't got it running right. The first symptom I noticed was the tach wasn't working. I still seemed to have plenty of hols shot, but that motor is way under propped so it would take a pretty bad problem to be really noticable. When I went over another boat's wake and smaicked against the water the tach started working again. I felt under the dash to see if it was a loose wire and if wiggling the wires would duplicate the problem, but it did not. Another time I noticed the tach out I cut throttle and then brought it back up again and the tach started working. Shortly after that I started to notice a miss. I would be cruising at around 50 in the 5000RPM range and it would have a slight loss of power like a cylinder quit firing and then start back up again. What would you suggest? Fouled plugs? Bad Pack? Bad Coil? This engine has run fantastic everytime out until saturday. When I finished up for the day and idled into the harbor it seemed to be idling a little rougher than normal. Also, it seemed to be blowing more smoke than normal when I first started out in the morning. I figured that was just from the 5:30am start and it being a little cooler than usual at about 52F outside. -- Bob La Londe Yuma, Az http://www.YumaBassMan.com Promote Your Fishing, Boating, or Guide Site for Free Simply add it to our index page. No reciprocal link required. (Requested, but not required) Larry W4CSC "Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!" |
#3
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200HP Mariner Problem
One of the stupidest things we ever bought was a motor with a 400V
alternator running in salt air with its unprotected, soft iron core sticking out against a bunch of whirling permanent magnets......just like 1939...... My 175HP Merc Sport Jet V-6 went through 3 sets of OEM coils before I got wise and bought an aftermarket from someone I never heard of. Fed up with Platinum Mercury Service, I bought the flywheel puller to get the magnets off it so I could change it, myself (after set 3), GREASED the exposed ends of the core so it wouldn't corrode up into a shorted core and have only used the puller ONCE..... If you wrap a few turns of cheap, enameled wire around a core and coat it with plastic, you can charge 5000 times its manufacturing cost and some boater will pay it. I'm convinced that is why they are "built to fail".......dammit....(d^ On Mon, 03 Nov 2003 14:38:24 GMT, "Bob La Londe" wrote: My 1994 Mariner 200 FI started running a little rough Saturday. Nothing major, but then my last motor started out as nothing major too, and I still haven't got it running right. The first symptom I noticed was the tach wasn't working. I still seemed to have plenty of hols shot, but that motor is way under propped so it would take a pretty bad problem to be really noticable. When I went over another boat's wake and smaicked against the water the tach started working again. I felt under the dash to see if it was a loose wire and if wiggling the wires would duplicate the problem, but it did not. Another time I noticed the tach out I cut throttle and then brought it back up again and the tach started working. Shortly after that I started to notice a miss. I would be cruising at around 50 in the 5000RPM range and it would have a slight loss of power like a cylinder quit firing and then start back up again. What would you suggest? Fouled plugs? Bad Pack? Bad Coil? This engine has run fantastic everytime out until saturday. When I finished up for the day and idled into the harbor it seemed to be idling a little rougher than normal. Also, it seemed to be blowing more smoke than normal when I first started out in the morning. I figured that was just from the 5:30am start and it being a little cooler than usual at about 52F outside. -- Bob La Londe Yuma, Az http://www.YumaBassMan.com Promote Your Fishing, Boating, or Guide Site for Free Simply add it to our index page. No reciprocal link required. (Requested, but not required) Larry W4CSC "Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!" |
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