Spike
Senior Member
- Joined
- Dec 13, 2010
- Messages
- 143
- Location
- USA
- Vessel Name
- Chasing 80
- Vessel Make
- Chris Craft Constellation 460
I have Covington DD 6-71 ti's on our Chris Craft. On our last cruise last fall I noticed some unburned fuel in the water from the exhaust of the starboard engine while at the dock after a 6 hour run. Didn't do anything to investigate at the time as we were preparing the boat for winter in the water in Scottsboro Alabama. Winterizing consisted of plugging in the block heaters to keep the ER warm while we were away.
We returned to the boat for a week in January for some projects and fired up the engines one day just to circulate the oil a bit and check them. The port fired as normal but the starboard cranked more than normal and then surged quite a bit before smoothing out. Still had the fuel in the water. All other fluid levels are normal. It's been about 500 hours since the engines were last "tuned up".
I plan to get someone to look at the issue as soon as it's practical given the current situation with lock-downs going on. In the meantime I'd like to get some thoughts on the problem.
My theory is a bad injector that's just leaking fuel and not misting it into a cylinder. I assume this would cause the cylinder to not fire and just dump fuel during the exhaust cycle. Does this sound right? Other possibilities??
Also, is it an issue to run the engine while this is going on? If I can't get someone to look into it where we are I'm thinking of running a couple of days down to Aqua Yacht and have it serviced there. It's about the closest full service marina to where we are in Goose Pond. Haven't tried Diesel Don yet so don't know what his work status currently is.
Thanks in advance!
We returned to the boat for a week in January for some projects and fired up the engines one day just to circulate the oil a bit and check them. The port fired as normal but the starboard cranked more than normal and then surged quite a bit before smoothing out. Still had the fuel in the water. All other fluid levels are normal. It's been about 500 hours since the engines were last "tuned up".
I plan to get someone to look at the issue as soon as it's practical given the current situation with lock-downs going on. In the meantime I'd like to get some thoughts on the problem.
My theory is a bad injector that's just leaking fuel and not misting it into a cylinder. I assume this would cause the cylinder to not fire and just dump fuel during the exhaust cycle. Does this sound right? Other possibilities??
Also, is it an issue to run the engine while this is going on? If I can't get someone to look into it where we are I'm thinking of running a couple of days down to Aqua Yacht and have it serviced there. It's about the closest full service marina to where we are in Goose Pond. Haven't tried Diesel Don yet so don't know what his work status currently is.
Thanks in advance!