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What is this on my engine? (with pictures)

P

Pilottonny

Well Known Member
I will be hanging the engine soon. At the moment I am checking what I can connect/install on the engine before it is hung. Obvioulsy some of these coonections are for oil cooler and oil-pressure, but what is what?

First picture: what is this stud for, in the middle of the picture, with the castellated nut on it? (RH side)


f_P2150659m_0abeac4.jpg


Second picture: What is the connection for, in the next picture, plugged with the square brass plug on the left of the oil filter?

f_P2150663m_93e4ac3.jpg


Third picture: What are these for on the next picture:
  • Between the Oilfilter and the SD8 alternator (orrange), is this the pick-up for a mechanical Tach?
  • What is the connection on the oil filter housing for? The one with the white plastic temp. plug in.
  • What is the connection for, at the bottom of the picture, with the brass, square plug in it? (bteween where the magnetos used to be)
f_P2150662m_0b2a7c0.jpg



In the fourth picture, the two plugs, at 90? of each, are the oil-pressure ports, I assume. Use either one of these, right? I suppose rear facing one will be best, because of less interference with the engine mount?


f_P2150664m_65146eb.jpg


As always, thanks a lot for your reply.

Kind regards,

Tonny.
 
What is it.

Tonny, I am not a mechanic but I am pretty sure the first photo is the oil pressure adjustment. I am sure u will get more response. Good luck.
Doug Preston
Rv-10
N372RV
 
Picture 1 is the oil pressure relief adjustment.
Pictures 2 & 4 are oil cooler ports. 2 is "from cooler". 4 is "to cooler".
Picture 3 is the mechanical tach drive.
Picture 4 is the oil pressure pick-up port. Either will work.
 
Last edited:
First: Oil pressure relief valve.. used to adjust oil pressure..

Second: Oil return port (from oil cooler)

Third: a) Yes b) Oil temp probe goes there c) Oil port (to oil cooler)

Fourth: Yes.. and one facing back is easier to use.
 
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Tonny, with the engine, you probably have a 'Lyco Operator's Manual'. For the stage you are embarking on now it is a mine of information. It may be worth a read. It has a whole bunch of other stuff which you may/may not already know.

It gets fun from here, Steve.
 
pre-oiler

This sort of ties in with a question I have, How/where does one plumb the oil lines to/from a pre-oiler pump?


Bevan
 
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