i have a 200 merc that keeps blowing #2 cylender it was originaly a 1983 but blowed and craked block and was built back with 1985 block and a 150 crank and ever sense it keeps blowing #2 cylinder any ideas why. the carbs were spotless and ignition timing is correct. could it be the choke solonoid couz it pulles out of #2 corb bowl.
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200 merc
- Thread starter steven
- Start date
kingsbiship
Member
Could be a bad switch box... firing at the wrong time!
2springers26
Member
steven check your PM's..kurt
boatman4021
Well-known member
Just a hunch, but check your water pump housing. I had a 200efi that kept blowing 1 cyl. Turns out, the water pump housing was warped. What was strnge about the whole thing was that it seemed to keep good water press. As the rpm's went up, the housing was letting out water so I wasn't getting the volume I needed. Blew it 3 times before I figured it out and when it happened the first time, I had just replaced the impeller. boatman
kingsbiship
Member
A bad pump will always blow #1 first... It's the farthest from the pump. He says #2, so
can't be the pump, if all else is OK!
can't be the pump, if all else is OK!