I have an Izusu 3lb1 diesel
(95 hours total time since new) on the genset and it has been sitting for several years while doing a major refit
. When I put the boat back into service
last January, I changed all the fluids and filters and the motor
fired right up. I let it run for about 30 seconds since I had the water
intake disconnected and shut it down. Fast forward to this January and I want to bring the genset on line and it will not start.
After doing all the normal trouble shooting (fuel), I pulled the injectors and had them tested (perfect) and then pulled the pumps (perfect) so I was left at looking at the compression
. I pulled the intake manifold off and when I cranked the engine
, I had exhaust
coming out of the top of the engine
around the rocker arms. This left me with the only conclusion my little brain could contrive and that is stuck rings so then engine had no compression
on any of the cylinders.
The first thing I did was to pour marvel mystery oil
into the cylinder heads (via glow plug
holes) and roll it over by hand and let it sit. Came back the next day and tried to start the engine and not luck...same problem. A friend recommended using Rislone oil
which I poured into the glow plug
holes and then rolled the engine by hand and let sit over night. Next day, same result. I poured the entire can into the engine and then spun the engine over several times...each time waiting until I had full oil pressure. Put the engine back together and same results.
I am left with two more things to try and then I am out of airspeed and out of ideas. First, dilute a mixture of Rislone (this product has the viscosity of honey) and Marvel mystery oil together and pour into the cylinder. Put the glow plug back in and then try to hand crank the engine to the TDC and try to hydraulically pressure the mixture around the rings. The second thing (which I am not fond of) is getting the piston to TDC and then tapping on the top of the piston with a bronze or aluminum
rod and try to shake the rings free. I that doesn't work, it is tear down time.
Any thing you guys can think of would be a great help.