CAPTKEV85
Petty Officer 1st Class
- Joined
- Mar 12, 2008
- Messages
- 229
Hey Everyone, Last week I had posted that I'm possibly purchasing a 1989 carver santego 30 with fresh water cooled 5.7 gi volvo penta dps. Its an older friend of mine that is selling the boat to me so today I went through the motors to make sure they run. The hour meter says 993hrs. These motors you can eat off of them that's how well maintained they are or maybe not. So since they have been winterized by a marina, today I fired them up since sitting all year. The marina mechanic asked told me "you know they are winterized". I said ok I'm not buying a boat with out running them and a sea trial. . I noticed right away that the port motor had a skip while cranking. It caught my attention but I thought maybe the fogging oil fouled the plugs. These motors are fuel injected. I Increased the throttle to try and clear it out. when I brought it back to idle it stalled. restarted it and noticed at idle the motor seems low in rpms with a little shake to it. So I started the starboard motor and kicked right over with no issues at all and it idles around 600rpms.
Now I decided to pull the plugs to check condition and #5 seemed wet. I put a new plug in and and tried it again. Still Misfire. Now with the motor running around 2000 rpms one at a time I pulled the plug wires off and reconnected them. #5 did not change at all when I pulled the wire. Spark was traveling from the cap to wire as I was connecting it. So now I'm getting concerned. I took the #5 plug wire from the starboard motor and tried it on the port. Still no change. Also the injector is clicking so I'm assuming its working.
So now I'm thinking a possible compression issue. Tomorrow I'm going to start the motor again get some heat in it and do a compression test on that cylinder. Does any one know the compression specs on this motor? and is there anything else I should look at or diagnos? thanks.
Also I noticed a possible gimbal bearing noise on starboard motor when turn the drive or trim up or down. Is it the same procedure like a Mercuiser gimbal?
thanks again everyone.
Now I decided to pull the plugs to check condition and #5 seemed wet. I put a new plug in and and tried it again. Still Misfire. Now with the motor running around 2000 rpms one at a time I pulled the plug wires off and reconnected them. #5 did not change at all when I pulled the wire. Spark was traveling from the cap to wire as I was connecting it. So now I'm getting concerned. I took the #5 plug wire from the starboard motor and tried it on the port. Still no change. Also the injector is clicking so I'm assuming its working.
So now I'm thinking a possible compression issue. Tomorrow I'm going to start the motor again get some heat in it and do a compression test on that cylinder. Does any one know the compression specs on this motor? and is there anything else I should look at or diagnos? thanks.
Also I noticed a possible gimbal bearing noise on starboard motor when turn the drive or trim up or down. Is it the same procedure like a Mercuiser gimbal?
thanks again everyone.