Hi all --
I recently acquired an old (1983) Pearson 303 sailboat, with a 13HP Yanmar 2GMF diesel
engine (if that means anything to anybody). The engine has a Kanzaki KM2A gearbox,
and it is beginning to be rather reluctant to shift. This can get awkward when you're
trying to get onto your mooring in a four-knot current.
All the boat dudes tell me I should change the gearbox oil, at the very least, which
seems sensible and harmless.
The gearbox nameplate says use SAE 20/30 HD oil.
Now I live in Manhattan, where automotive supply stores are not abundant. I have
called up a couple, and though they have SAE 30 oil, they don't have the HD flavor.
When I mention that it's a diesel engine, they all tell me that I need the HD.
I'm desperately ignorant about this sort of thing. Can somebody enlighten me? What's
the difference between HD and non-HD? What sort of disaster would I be courting if I
used non-HD oil in this gearbox?
Thanks in advance!
I recently acquired an old (1983) Pearson 303 sailboat, with a 13HP Yanmar 2GMF diesel
engine (if that means anything to anybody). The engine has a Kanzaki KM2A gearbox,
and it is beginning to be rather reluctant to shift. This can get awkward when you're
trying to get onto your mooring in a four-knot current.
All the boat dudes tell me I should change the gearbox oil, at the very least, which
seems sensible and harmless.
The gearbox nameplate says use SAE 20/30 HD oil.
Now I live in Manhattan, where automotive supply stores are not abundant. I have
called up a couple, and though they have SAE 30 oil, they don't have the HD flavor.
When I mention that it's a diesel engine, they all tell me that I need the HD.
I'm desperately ignorant about this sort of thing. Can somebody enlighten me? What's
the difference between HD and non-HD? What sort of disaster would I be courting if I
used non-HD oil in this gearbox?
Thanks in advance!