1989 460 Cobra
I overheated the motor because of a impeller problem.
We did a compression test and all was well. Then we did a full tune up (plugs, points, condenser, cap etc.) The engine is running very well.
The problem is there is no top end power. We can get the boat to about 3400 rpm and the risers are hot to the touch.
I suspect there is a problem with the exhaust seals (flapper). I believe the overheat caused them to melt and dislodge from their place and clog the exhaust.
I believe the seals that I have are these ones. https://i.ebayimg.com/images/g/eRkAA...uAU/s-l300.gif
Can these melt and fall into the Y-pipe or outdrive? The part where the bushing and shaft go through just looks like solid rubber and could easily let go.
I overheated the motor because of a impeller problem.
We did a compression test and all was well. Then we did a full tune up (plugs, points, condenser, cap etc.) The engine is running very well.
The problem is there is no top end power. We can get the boat to about 3400 rpm and the risers are hot to the touch.
I suspect there is a problem with the exhaust seals (flapper). I believe the overheat caused them to melt and dislodge from their place and clog the exhaust.
I believe the seals that I have are these ones. https://i.ebayimg.com/images/g/eRkAA...uAU/s-l300.gif
Can these melt and fall into the Y-pipe or outdrive? The part where the bushing and shaft go through just looks like solid rubber and could easily let go.
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