I am in Mazatlan Mexico
and had the Yanmar
shop just do a 1000 hour check on our 2GM20F. It's been about 5 or 6 years since I dropped it in. I needed a mixing elbow also. Mine was not bad on the outside, but had a LOT of corrosion
on the inside. As we are heading further south I decided to replace it. The shop guy just undid the 4 bolts holding the manifold on and removed all 3 parts
at once. Took it to the hop and with a bit of heat had no problem with the nut!
You need a new gasket
, but for the small $ you save a LOT of time and heartache!
As long as you have that off, you might as well check out a lot of the other stuff!
We had the injectors sent off for cleaning
and calibration at a local lab.
We also had the heat exchanger
taken out and cleaned, the water
pump, the fuel
filters, and the valves adjusted. We also had a strobe check the actual engine
speed to compare to the tach. The tacks are not real accurate and can not be adjusted
, so I am making a table for mine so I can read the tach and tell the true speed.
It now sounds like a new machine!