M18 oil lines

sorner · #1 02-02-2020, 05:39 PM

I have a M18 with remote oil filter and leaking oil lines I’ve seen these with two piece lines where the hard line and rubber line thread together, but these are all one piece and it’s leaking at where the rubber connects to the hard line (compressed fitting). I’m thinking about eliminating the filter all together with a block off plate. Is that acceptable on these engines? Or were they only for KT’s?

RLause · #2 02-02-2020, 06:55 PM

Steve, I have cut off the compressed sleeves and used regular hose clamps. 50 psi is the max pressure on those lines. If it has a filter, I wouldn't do away with it.

ol'George · #3 02-02-2020, 09:10 PM

You can use hydraulic lines with associated fittings, or you can use a block mounted oil filter and never have to deal with leaking lines again.
(my preference)
I've seen #80 cold on those engines down to #15 warm.

sorner · #4 02-02-2020, 09:13 PM

Thanks, I was thinking about doing a block mounted filter too. I'll probably just take the rubber off and get new ones made because they're stiff as a steel line, and this engine sat with gas in the crankcase for who knows how long, so I don't know they might be brittle from that. Cutting them and clamping them might be a no go.

ol'George · #5 02-03-2020, 07:29 AM

There are a couple of negatives of a block mounted filter:
You get some oil on the area under the filter when changing it,
unless you roll up a piece of metal as a trough to catch it.
And you have to cut out a little metal in the cooling shroud to allow access
to the filter.
Both of my 782's are utilizing the block filter,
and I find it no problem.

In a pinch you can use hose clamps to finish the day till a permanent
repair/decision is made.
Just be sure you keep an eye on them during use.
I admit the divorced filter is convenient during changing, for the average Joe.

FWIW, the block filter mount was on most all Vertical M-18's so availability
is out there,--(ebay/ internet)
If you go with hyd replacement lines , do pay attention to their routing so the in/out are properly connected.

Mike McKown · #6 02-03-2020, 09:55 AM

Quote:

Originally Posted by ol'George

If you go with hyd replacement lines , do pay attention to their routing so the in/out are properly connected.

The first M 18 I had I got from my BIL The remote filter had been removed but he made a drawing of how the lines were connected. I put the lines back on the engine. It ran about 20 minutes and locked up.

My neighbor did the same thing to one of his buddies Magnums. He took it apart, put it back together and crossed the lines. Engine locked up.

Not sure but I believe the filter has an anti-drainback valve in it so that stopped the oil flow.

Someone here will know if that is true.

sorner · #7 02-03-2020, 10:13 AM

If that's the case, then wouldn't a block off plate do the same thing? I just bought a block mounted oil filter plate to try out. I also bought a block off plate because I'm putting a M18 back together currently also, and it's going to be stored, so I would like to keep it closed up as much as possible, so while it's in storage it will have the block off plate on it instead of remote oil lines dangling loose.

Mike McKown · #8 02-03-2020, 10:24 AM

Maybe this will answer your question?

https://www.mytractorforum.com/threa...r-m18s.216511/

sorner · #9 02-03-2020, 10:27 AM

Well that makes perfect sense. Thank you Mike. I didn’t even think of there being a passageway for the oil to go through the plate. I have a case of the mondays.

sorner · #10 02-19-2020, 09:03 PM

I went with a block mounted filter on my M18 on the 782, I cut away just enough tin to access the filter, and I rolled the edges so I don't carve myself up when I do get in there. I like how it turned out. I just need to hit it with some black paint when it gets warmer.

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