wakeup 19
Member
- Nov 14, 2008
- 678
- Boat Info
- 1992 300 Sundancer, Quicksilver ding w/ 6hp merc 4 stroke, anchorlift windlass, extended swim platfo
- Engines
- t/ 350 merc's (carburated) alpha drives gen II
Having a hell of a summer so far.....
1992 5.7 running rough loosing power. Changed cap and rotor, no change. Pull plugs all look fine so did I compression check. #6 has no compression 0. All other are 125-150. 600 hours salt water eng that is stored in brackish river.
Rockers are moving valve doesn’t appear stuck but did hear clanking sound about a week back. Manifolds and risers new last year. May have had slight intrusion but ran great till now.
Last night backed off rockers and exhaust valve rod is bent. Riser off as well. I can blow into spark plug hole and air comes up exhaust manifold. Tapped on valve no change, if it was stuck maybe free not sure.
Don’t want to do heads on 9 year old engine but want to get opinions on next step.
I hope I didn’t miss anything. Thanks, Rob
1992 5.7 running rough loosing power. Changed cap and rotor, no change. Pull plugs all look fine so did I compression check. #6 has no compression 0. All other are 125-150. 600 hours salt water eng that is stored in brackish river.
Rockers are moving valve doesn’t appear stuck but did hear clanking sound about a week back. Manifolds and risers new last year. May have had slight intrusion but ran great till now.
Last night backed off rockers and exhaust valve rod is bent. Riser off as well. I can blow into spark plug hole and air comes up exhaust manifold. Tapped on valve no change, if it was stuck maybe free not sure.
Don’t want to do heads on 9 year old engine but want to get opinions on next step.
I hope I didn’t miss anything. Thanks, Rob