M109 oil pressure gauge not working

[wildbill81]

I purchased a 1967 M109 this weekend with a Continental multi-fuel with 172 hours on the meter overhauled back in 1990. After 2 days of wrenching and head-scratching and searching threads I got it running. The motor sounds good, but the oil pressure gauge does not come off the low peg. I certainly don't want to run it w/o pressure indication. Can anyone point me in the right direction, such as where it taps off, or common fixes?
Thanks

 

[glcaines]

Before you do anything, I would remove the sending unit and screw in a gauge to make sure you actually have oil pressure.

 

[wildbill81]

Can you point me to the location of the sending unit? I want to be sure I pull the correct fitting. I have a aftermarket gauge laying around I can plumb in.

 

[91W350]

Right side of the block, towards the rear, follow the wire to the connector.

 

[peashooter]

I put a mechanical oil pressure gauge on my 109 because I was getting strange readings with the stock unit. You may want to do the same as it eliminates potential for a bad electrical sender, a bad electrical gauge or poor wire connections.

 

[Bad_Carp]

After having multiple issues with the sending unit and gauge on my M109, I switched to a manual gauge. Cheap to pick up at any auto parts store, just run the tubing thru the firewall and into the new gauge. You'll always know if you have pressure.

 

[59apache]

look...
http://www.steelsoldiers.com/showth...e-gauge-quit&p=1090367&viewfull=1#post1090367

the Stewart Warner is very nice and close to original. Little bit OD on the trim ring, ready.

 

[steelandcanvas]

Can you point me to the location of the sending unit? I want to be sure I pull the correct fitting. I have a aftermarket gauge laying around I can plumb in.

Download the Deuce TM's for your trouble shooting reference. It's located on the banner, top of the page. If you still have problems, we're here to help.

 

[wildbill81]

Thanks everyone. I picked up a mech gauge and had 25psi at idle...changed the oil and filters and I'm in the 50-75psi range between 1000 and 2000 rpm. Next problem is finding out why it won't start w/o a shot of ether(I'm mixing w/ WD40 after reading some other posts).