L185 oil pressure is low

[teachingscience]

You have all helped me with several problems getting my L185 running. Discovered that it only has 5 lbs of oil pressure. I'm assuming that the cam plug has come out. Question, does the 185 only have one plug in the front end or does it have a plug on both ends? Any other things to check with this low pressure problem you would recommend?

Thank you all for your great advice.

Charlie

 

[85Hokie]

You have all helped me with several problems getting my L185 running. Discovered that it only has 5 lbs of oil pressure. I'm assuming that the cam plug has come out. Question, does the 185 only have one plug in the front end or does it have a plug on both ends? Any other things to check with this low pressure problem you would recommend?

Thank you all for your great advice.

Charlie

One plug ......and check that, and check the gauge too!

Once started COLD - what is the PSI reading?

 

[teachingscience]

5 psi when cold

 

[85Hokie]

5 psi when cold

Little more info:

http://www.orangetractortalks.com/forums/showthread.php?t=11594

 

[North Idaho Wolfman]

85Hokie,
Actually there are 2 plugs in the cams, front and rear, in these engines.
The D750's in the B7100 only have a front plug.

It's probably because the design of the rear of the cam (fatter) that it seems to have far less instances of that cam plug coming out.
Also if the rear plug did come out there is a cover behind it that keeps it from completely falling out of the cam and there is also no place for the oil to go (trapped space), as opposed to the front where the plug can fall out and down into the oil pan and oil just shoots out into the gear case.

Some engines have one plug and some have two plugs, while they were still using plugs some got welded in, newer engines will have two, but they are set screws not plugs so they don't just fall out.

And yes you are correct in pointing to this plug as his most likely issue for his low pressure.

 

[teachingscience]

So should I just replace the front plug or should I check to see if the back one is also out. Is there a way to tell without pulling the cam? So far I'm trying to get the r front cover off. I cant find any bolts I missed but it just doesnt want to break loose. Afraid to put too much pressure on it.

 

[Daren Todd]

The front plug is medium to light duty job as far as difficulty goes. You need to remove the front axle (5 bolts on the frame) and drain and disconnect the radiator. Radiator can stay mounted to the front axle and get rolled out of the way. It helps to have a second set of hands when doing this.

Then you can get access to the bottom bolts and remove the crank case (timing) cover.

To get to the back plug, it's a major chore since the top end of the engine needs to be torn down, as well as the front of the engine.

 

[North Idaho Wolfman]

To get to the back plug, it's a major chore since the top end of the engine needs to be torn down, as well as the front of the engine.

You can actually get to the back plug without tearing the top end off, you just need to split it, the plug that covers it is behind the flywheel.