supagidget
Seaman Apprentice
- Joined
- Jun 13, 2011
- Messages
- 36
I have a 1968 Evinrude 40 hp Big Twin on a 1965 16ft Aluminum Boat. I bought the boat, motor and trailer, all original, as a package.
I had the carbs cleaned when I bought the boat and everything else looked fine.
I took the boat out one day and it overheated bad. Prior to overheating I was idling for 20-30 mins. My theory is that the old motors were not made to idle for long periods of time because they do not circulate a lot of water in idle, at least mine doesn't.
After overheating I had the impeller and head gasket replaced. The coils and condensers where checked and repaired as needed, apparently it was only firing on one cylinder at times.
The first time I got on the water after the impeller was replaced it overheated again. after about 10-15 min at a high idle (no wake zone) I opened her up. Just after she planed, at 1/2 throttle, she powered down and would not start.
Someone told me that I need to replace the powerhead and that it would cost $1,000.00. Is that what it should cost? Is it worth it?
Would a faulty gasket, say base gasket, cause the second overheat?
Is there something I should look into before replacing the powerhead?
Thanks for any help?
Ashley
I had the carbs cleaned when I bought the boat and everything else looked fine.
I took the boat out one day and it overheated bad. Prior to overheating I was idling for 20-30 mins. My theory is that the old motors were not made to idle for long periods of time because they do not circulate a lot of water in idle, at least mine doesn't.
After overheating I had the impeller and head gasket replaced. The coils and condensers where checked and repaired as needed, apparently it was only firing on one cylinder at times.
The first time I got on the water after the impeller was replaced it overheated again. after about 10-15 min at a high idle (no wake zone) I opened her up. Just after she planed, at 1/2 throttle, she powered down and would not start.
Someone told me that I need to replace the powerhead and that it would cost $1,000.00. Is that what it should cost? Is it worth it?
Would a faulty gasket, say base gasket, cause the second overheat?
Is there something I should look into before replacing the powerhead?
Thanks for any help?
Ashley