LUBRAFINER SP. SP.

lenray · Nov 19, 2015

I have an old tractor that has one of these on it. Changing the oil and installing a new filter in the LUBRAFINER sp.
QUESTION------Do I add oil to this or does the oil come up from the engine and thru the Lubrafiner. Thank you

Janicholson · Nov 19, 2015

We need to know the exact tractor/engine to answer. Some oild filters are called bypass filters and fill from a small orifice. Some are full flow, and all oil passes through them. If it is a stand alone filter with two hoses, it is likely a bypass type and will fill. Jim

mite-help · Nov 19, 2015

I think we used to fill them a little. also be aware of bleeder valve on top. open with engine running, shut when oil starts to run out-recheck oil level--

Bob · Nov 19, 2015

The typical Luber-Finer is a bypass filter that has a small orifice in the inlet fitting to allow a limited oil flow from the main engine oil gallery through it's filter, after which it is "wasted" back into the sump/crankcase.

So yes, it will get (slowly) filled back up at startup.

If mounted upright, it certainly doesn't hurt to fill it with oil before securing the lid. Or are we talking about a newer one with a spin-on filter?

In any case, unless you know the total crankcase refill capacity and start with that much in the crankcase, the oil lever will be DOWN after the engine runs long enough to fully fill the filter and canister.

lenray · Nov 19, 2015

It is a 1964 M R S--Mississippi Road Service with the Detroit 4 71

Den N Ms · Nov 19, 2015

Lenray,That is a bypass filter,just crack the plug on top loose after startup and bleed the air out.Then recheck and top off the crankcase with oil.
I like those Mississippi Road Service tractors,cool stout looking tractors.

Guido. · Nov 19, 2015

Hello lennray,

The Luberfiner should have a plug on the dome. Just leave it a little loose, put oil in the engine to the dipstick mark. Start the engine, and when the oil starts to come out, tighten the plug. Stop the engine. Wait at least 10 minutes and add oil to the full mark...............DONE!

Guido.

lenray · Nov 19, 2015

Thanks Bob and all others---great info. much appreciated.

Tim in OR · Nov 20, 2015

When I worked in the truck shop, all the trucks had Luberfiners. The guy that showed me how to service them told me to take the plug out till the oil came out. I didn't think that was a good idea, so I loosened it till oil came out around the threads. Later He admitted that the guy that taught him told him the same thing and he fell for it. They had to clean oil off the wall and ceiling.
Tim in OR

LUBRAFINER SP. SP.

lenray

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Janicholson

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mite-help

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Bob

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lenray

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Den N Ms

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Guido.

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lenray

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Tim in OR

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