Something's Missing

sybaris2

Seaman Apprentice
Joined
Apr 21, 2006
Messages
37
Got boat back on Friday after getting coupler replaced.
After getting her warmed up took her for a spin. Struggled to get up to 30mph and felt like a car with a bad plug or two. Eventually got up to about 40. Didn't miss as much but still not right. Took her down to idle and drove around the lake a bit. Within 20 minutes got a long beep alarm. Shut it down and checked gear lube bottle. All good. Started her up and in about 5 minutes got the single beep alarm again. Took her home.
Took her out Saturday, same symptoms.
Checked sparkplug wires and firing order. All good.
Mechanic said to bring her back. I'd like to but I don't have a truck and he's an hour away so will try to fix myself.
Any suggestions much appreciated.

---------------
2005 Crownline 220EX
5.0L MPI 260
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Pull the plugs and have a look at them, do a compression check. As it's an MPI engine, beyond that, you're going to need the Diacom diagnostic software.

Chris...
 
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