this is a 1991 omc cobra 3.0 4 cyl. I saw the paint was pelling on the exhast pipe under the riser so i took the riser off and the flapper was gone i ran a camera threw (all clear) then i put the rubber hose on the riser when i looked at it well you all know how the exhaust inside flares out and...
I need some input i have a 1982 3.0 merc i/o turn the key and fires up next time you have to wind the fool out of it to get it to start it does this hot or cold i have 145+/- on all cyl. new starter plugs/wires dist.cap coil fuel pump,carb rebuilt (no change)oil pres is 40/45 its onlyhas...
Everybody thank you for helping me in the past .Now i would like to know about this exhaust shutter wile my riser is off ( 1991 3.0 cobra) i pulled the rubber off the tube and all I found was a little rod with no holes for screws or rivits does this mean my boat did not come with one this is the...
I have a 1991 3.0 cobra. It runs good comp is 160 +/- on all 4cyl getting water in #4 . i pumped 15psi into the head and block its still holding after 8hrs and when i crank it runs great for about 10min and then fouls the plug.Pull plug and water on #4 .Could it be the manifold or what ?
I have a 3.0 cobra and the model # 's are gone stiker is there no #'s i need a manifold i have the block #'s 14096613--341/89 made in mexico casting # on manifold is 986518 model and ser. # on transom in back of motor for out drive is 986028--t00280692 mine has no end caps only a90 that screws...
