Which Perkins engine is the D1-30 circa 2015?

[GeoffV]

I am doing away with the MDI unit, button panel to make the system simple and reliable with standard instruments.

What I need to do first is the temperature and oil pressure gauges for which I need unit size holes and thread type. Hence request for original engine block.

Ta in advance for all help.

[symphony2]

It is a Japanese Perkins Shibaura engine. Your best bet is https://www.parts4engines.com

[GeoffV]

You don’t happen to know the thread sizes for temp and oil senders do you?

[symphony2]

Sorry, never needed to look!

[beeblebrox]

I changed the water temp sender several years ago from switch/alarm-only to an analogous temp sender with an additional switch from VDO. Same Engine, D1-30. Thread is M18/1,5. I needed an adapter M14->M18 as the sender from VDO was M14.

[GeoffV]

Thank you so much for the information Beeblebox. I can move ahead and order that.

Just the oil sensor thread size to go.

[beeblebrox]

Hi Geoff,

you're welcome. The replacement of the original oil pressure switch (alarm only) with a sender unit is also on one of my todo-lists - but with a lower priority :-) But if i remember it correctly (found somewhere in the net) that is NPT 1/8. SVB sells KUS senders : https://www.svb24.com/en/kus-oil-pressure-sensor-0-5-bar-10-184-ohm-with-alarm.html. And it might be that you will need an 90 degree adapter, because of little space (bigger diameter of the sender compared to the switch).

But - i am not 100% sure that this is the fact, because I haven't checked that. If you find out, it would be great to share it here :-)

Lutz

[SYJetzt]

I can confirm the 1/8NPT for the oil pressure sender on a D2-75F, which is of the same shibaura engine type family.
Fitted such a combined sensor(switch and analog sensor), connected the switch to the original input on the MDI and the analog sensor to the new instrument (0-5bar). According to VP spare part list the sensor on D1-30 and D2-75F should be the same, but worth further investigation

[GeoffV]

Did you fit the new oil sensor low down on the left hand side of the engine as you look at it in the normal place?

I recently found some info in a forum where people were fitting them to an area at the front of the engine where there is an allen bolt screwed in. I am going to look at that when I go to the boat this saturday.