The injector pump
checked out okay, but the injectors tips were off, so the shop rebuilt them.
Now the engine has more power (about 75%). I can get the boat to 4 knots in on glassy water. Prior it was 5.5knts on glassy water.
But.... there is a lot of gray smoke. I let her run for 1/2 hour under load and no change. The smoke starts instantly on startup and increases with RPM
. I am running out of things to check or change.
I did a compression test and it was 340 PSI, so I have ruled out rings.
The prop is clean, but is not glass smooth.
The transmission was hot to the touch after running under load for 45 mins.
I checked the valve lashing and they were .05mm of too large. I adjusted to the correct amount with a warm engine.
I bypassed the fuel tank
and used new fuel and there was no change. I replaced 60% of the fuel hoses. I need to order the other hoses and new crush washers from volvo to have a complete new set.
The injector shop thought I was getting limited fuel and this would explain the lack of power. But this does not explain the gray smoke.
I rebuilt the lift
pump. I could have screwed the rebuild
up, but I do not know how to test the lift pump.
plans are to:
Go back to a Fram P8043 fuel filter
vs. the wix filter. I doubt this will do anything but it is a new variable.
Play with the timing of the injector pump. Any tips? Can a valve job or new head gasket require different timing?
Any other ideas are welcome or if you think I might have missed something.