New to me Yanmar 2210D...and I have questions! :D

[California]

Here's what I put on temporarily to verify my hunch that the oil pressure sender was bad.

I used a short brass nipple into the block with plenty of teflon tape, the mismatch from this US pipe thread to British Standard didn't seem to hurt the block. When I got the proper replacement sender it went in properly. I think using a brass fitting with plenty of tape let the brass deform instead of the block threads.

There's lots more longwinded discussion in the thread where I posted this photo - measuring the block temperature at various points, etc.
Low oil pressure? No, bad sender! (I posted that in 2009. The YM240 continues to run well today same as then).

This is a plumber's water pressure gauge, probably the cheapest form of 100 psi gauge. I already had it so I used it.

 

[Skold]

Here's what I put on temporarily to verify my hunch that the oil pressure sender was bad.

I used a short brass nipple into the block with plenty of teflon tape, the mismatch from this US pipe thread to British Standard didn't seem to hurt the block. When I got the proper replacement sender it went in properly. I think using a brass fitting with plenty of tape let the brass deform instead of the block threads.

There's lots more longwinded discussion in the thread where I posted this photo - measuring the block temperature at various points, etc.
Low oil pressure? No, bad sender! (I posted that in 2009. The YM240 continues to run well today same as then).

This is a plumber's water pressure gauge, probably the cheapest form of 100 psi gauge. I already had it so I used it.

I saw your other thread and thank you for the information! I have a T adapter and pressure gauge kit on order. Once I determine the cause, I'll decide what to do next. If the sender unit is just bad, I may leave it be and monitor via the gauge. Otherwise, I'll buy a new sender unit and keep the gauge as well. If it's really a pressure issue, then I'll have to go to the next troubleshooting step from there.

 

[Andy1969]

I saw your other thread and thank you for the information! I have a T adapter and pressure gauge kit on order. Once I determine the cause, I'll decide what to do next. If the sender unit is just bad, I may leave it be and monitor via the gauge. Otherwise, I'll buy a new sender unit and keep the gauge as well. If it's really a pressure issue, then I'll have to go to the next troubleshooting step from there.

Did you ever figure out what was going on? Bad sending unit or actually low oil pressure?

 

[Skold]

Did you ever figure out what was going on? Bad sending unit or actually low oil pressure?

Not yet. I just got the last part in yesterday and it'll probably be next week before I get to it. I'll definitely reply back when I figure it out.

 

[clemsonfor]

I know you his is against everything we preach and most advice. I also don't recommend throwing parts at something unless you have no other choice. But as cheap as the price of these sending units are at like advance Auto parts I would be tempted to just replace it. If you have to buy gauges and kits and install stuff your already going to spend more than the sending unit. Now that said if you buy all the stuff needed to confirm pressure you have it for future projects, but unless you work on a lot of junk you could go 20 years and never use that setup again.

Just something to think about. I try to think of things that make financial sense.

 

[California]

as cheap as the price of these sending units are at like advance Auto parts I would be tempted to just replace it. If you have to buy gauges and kits and install stuff your already going to spend more than the sending unit.

Just something to think about. I try to think of things that make financial sense.

Agree. For a lot of parts like this Yanmar just used whatever was common on Japanese cars of the 70's, for example the alternator and steering box are generic and are just a special run of parts sold to several brands. Oil filters etc too.

Just ask for a Datsun sender, verify it has screw threads for the wire instead of a blade (or includes that adapter), and be done with the project.

 

[rokryder]

Agree. For a lot of parts like this Yanmar just used whatever was common on Japanese cars of the 70's, for example the alternator and steering box are generic and are just a special run of parts sold to several brands. Oil filters etc too.

Just ask for a Datsun sender, verify it has screw threads for the wire instead of a blade (or includes that adapter), and be done with the project.

Steering box is generic? Do tell!

 

[California]

Steering box is generic? Do tell!

It's been several years but the trademark on the casting, and the internal race that the balls run in, maybe the whole thing, were same as Datsun 240Z (the roadster). Internal parts are available now to rebuild the YM186D steering box, but back then that was the only listing for the needed parts.

 

[rokryder]

That’s amazing!