Recent content by Pinner58

Was able to pick one up for 150.00

Just surprised to see the one area so worn

Exhaust leak is between the manifold and head.

I believe it's all stock. What would happen if the one was shaved a little

What if the numbers match up but one head had CM6. And the replacement has CM4. Are the heads interchange?

If you want to change out a cylinder head I was told you need to match up the numbers under the valve cover. Noticed the cylinder head currently on the engine also has CM6. And the replacement has CM4. What's the difference. Engine is the 7.4. 454 big block

Need help, 1997 Sundance with the 7.4 mercruiser engines. 454 big block. Have an exhaust leak. I first tried that metal patch, but filling in the worn area but still having exhaust leak. Thinking of changing out the cylinder head. First I was told that I just need to match up the six digit...

I'm having the same issue. Have a 1997. 330, Port engine run great WOT 4200 rpm. Other one, at best getting 3100.

Have a 1997 Sundacer with the 7.4 mercuries. Fuel injection, V drive. Starboardengine gets up to 3000 RPM, at WOT. Thebounce back and forth between 2800 and3000. Pulled the fuel/ water filter, had some water and junk. Replaced, same issue. Switch tank and ran off the port tank,. Portengine ran...

Don't see how a dirty bottom will only have a effect on the starboard engine only. Bottom is cleaned ever year. Will double check anyway. Both props were reconditioned before she was dropped in this year. Will check to make sure nothing grew on it

Have a 1997 Sundacer with the 7.4 mercuries. Fuel injection, V drive. Starboard engine gets up to 3000 RPM, at WOT. The bounce back and forth between 2800 and 3000. Pulled the fuel/ water filter, had some water and junk. Replaced, same issue. Switch tank and ran off the port tank,. Port...

Just the port engine is running hot . Temp on both engines reading at 170, not sure when the impellerswere last changed out, got the boat 2 1/2 years ago I will try placing my hand on the risers this weekend. Any other thought out there?

I notice the port engine is putting out a lot of steam. The exhaust water is very hot. Is this a sign of the risers being blocked or the fresh water cooler