Schrewsburyduo
Member II
Hi everyone -- I finally got the yanmar (2gm20f) on my new to me 32-2 to work a few days ago. It involved changing the fuel completely with fresh fuel, and bleeding. It ran no problem. But then today I wanted to try it again -- and then nothing. The motor tried and tried to start -- it would try firing, but it was really rough. It eventually ran for 1 minute, but it was protesting and only ran begrudgingly. I tried to bleed the fuel system again -- but no luck. The fuel was a bit frothy coming out of the bleed screw at the fuel pump on the motor. I am beginning to think that the primary filters designs are too old.... I never saw those types. I just changed them the other day so the cartridges are new... But the filter assembly itself seems prehistoric. They take two huge cartridges that are 10 microns each. The cartridges came with a gasket but the PO mentioned I should not use the gaskets as the cylinders are machined perfectly.... So maybe they are letting air in somehow...
I am leaning towards replacing the filters with a racor 500 fg with a 30 micron filter, which I have used before... Then bleeding the system again and pray for the best... Hopefully it's not something exotic like some copper gasket on the injectors that is letting air in.
When it ran today it was black exhaust, which prompted me to think it's air in the fuel lines.
Does anyone have any wisdom? I am used to Betamarine which ran so good and I am new to yammers -- no glow plugs, crappy engineering, expensive parts, and weird ghost problems that don't seem to go away.... I am trying to make this motor reliable -- hence the idea of the new racor. Here's a picture of the old racors. I never saw anything like this especially on a boat... I will try to upload a picture. I could use any help... I never installed a racor... have to find fittings etc. Is there anywhere I can find those at a brick and mortar store like napa parts?
Many thanks.
I am leaning towards replacing the filters with a racor 500 fg with a 30 micron filter, which I have used before... Then bleeding the system again and pray for the best... Hopefully it's not something exotic like some copper gasket on the injectors that is letting air in.
When it ran today it was black exhaust, which prompted me to think it's air in the fuel lines.
Does anyone have any wisdom? I am used to Betamarine which ran so good and I am new to yammers -- no glow plugs, crappy engineering, expensive parts, and weird ghost problems that don't seem to go away.... I am trying to make this motor reliable -- hence the idea of the new racor. Here's a picture of the old racors. I never saw anything like this especially on a boat... I will try to upload a picture. I could use any help... I never installed a racor... have to find fittings etc. Is there anywhere I can find those at a brick and mortar store like napa parts?
Many thanks.