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oil pressure gauge

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Dan Mitchell Tu

07-02-2005 19:25:52

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I just installed an oil pressure gauge on a 1952 MM V,..simply to see if oil pressure would register,..it does not,..even running at high rpms. Would one tend to think an oil line to the oil pressure gauge is clogged if no reading is shown or would low oil pressure be the case...? Also,..when the engine is running,..i'm getting a 'blow-back' of white smoke or something coming out of the oil spout where oil is added. any ideas..?

Dan

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RJ-AZ

07-03-2005 15:59:31

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-02-2005 19:25:52

The handiest diagnotic tool I own is a oil pressure guage on a 3 foot hose that I can screw directly into an engine oil port. Takes all the guess work out of it. Some old tractors will only carry 10 to 15 psi at an idle and still be OK.

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New Name ?

07-03-2005 06:33:38

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-02-2005 19:25:52

That's a ton of typing with your full name and where you live. And you've got a lot of good questions too that everyone here likes to help out with. Might I suggest something a little shorter and niftier, like maybe "Tupelo Dan" ... I think that'd fit you perfect. Seen Elvis lately in any local restaurants, etc.?

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Dan Mitchell Tupelo, Ms

07-03-2005 15:21:35

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Re: oil pressure gauge in reply to New Name ?, 07-03-2005 06:33:38

why would i want to disguise my name..? I've got nothing to hide. Besides, i feel being on a more personal basis with the people who help me with questions reaps a better insight as to the info i search for.....yeah, i saw Elvis in WalMart yesterday...he was stocking up on peanut butter and bananas ;-)

Dan

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New Name

07-04-2005 04:10:36

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-03-2005 15:21:35

Lighten up a bit Dan, it's pretty obvious that you're a newbie here, a guy's gotta be able to take a little kidding without a formal rationalization of everything you do! Most people here do use nicknames, not to hide their identity by the way, it just seems a bit friendlier I think. Seeing as how you don't mind typing long handles, maybe put your middle name in there as well so we don't get confused.

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Dan Mitchell Tupelo, Ms

07-05-2005 17:31:39

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Re: oil pressure gauge in reply to New Name, 07-04-2005 04:10:36

i'm not so much of a newbie as i've been gathering information from guys here for several months. I may be new in tractor restoration, thus the reason why i come here. These fellows have been intrumental in assisting me with info and i am very grateful,...they don't care what my name is. I'm usually a cut up myself when it comes to humor...but i figured i would keep it on a professional level as to show respect to the many helpful and knowledgable people here....no hard feelins

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frankiee

07-03-2005 04:47:48

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-02-2005 19:25:52

If it has been sitting for a while then the rings could be stuck and might work free with running. That could cause the blowby.
If it has been sitting the oil pressure releif valve could be stuck. That is a valve that controls the max. oil pressure. Under spring pressure it will open a varing amount, bypassing the filter and back to source.
I was selling a car engine from a scrap yard once and the engine ran like a new one every day.
My employer put the engine in to the customers car and it ran horrible with noises and no oil pressure. He got me to check it out and It ran great with lots of oil pressure. He took a look at it and could not beleive it. We figured when I took the engine out a piece of crud dilodged and held the relief valve open when he had it going. Then it disolved or worked its way free and the engine ran like new again.
I am sometimes hesitant about recomending putting new detergent oil in a old engine but sometimes that is what it takes to break that old stuff out of the way. Change the oil shortly after.
Has the engine been sitting for a long time?

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Jerry/MT

07-02-2005 20:51:29

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-02-2005 19:25:52

It's possible to have a clogged oil line. Is there any pounding noise coming from the crankshaft area? If it is, then you probably have no oil pressure and you will probably need to rebuild the lower end of the engine. The smoke out of the oil filler is indicative of "blow by" and if it's severe, it generally means that one or more cylinders need to have their rings replaced, at a minimum.

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Dan Mitchell Tupelo, Ms

07-03-2005 05:23:19

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Re: oil pressure gauge in reply to Jerry/MT, 07-02-2005 20:51:29

hi Jerry,...i don't hear any pounding noises from the cranshaft area. You might be right about the cylinder rings needing replacing,..after all it is an old tractor and in it's lifetime, probably seen a lot of hours spent in the garden. There is a complete engine rebuild kit available, right..?

Dan

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txgrn

07-03-2005 06:22:45

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-03-2005 05:23:19

Just heard from a guy that decided his tractor needed to be overhauled..... total hours 11,000. Another was bragging how he had 19,000 and no engine wrenches. Then there was a Deere for sale the other day, 30 years old and the owner advertised: "35,000 original hours".

How much garden tilling do you think has to be done before you put that much time on your tractor and wear it out?

My motto is don't fix it if..... ..

Unless you just want something to do and have too much cash on your hands. Grin.

But if it needs it, it needs it.

Mark

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Dan Mitchell Tupelo, Ms

07-03-2005 07:03:14

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Re: oil pressure gauge in reply to txgrn, 07-03-2005 06:22:45

Thanks a heap for all your knowledge and thanks for taking the time to answer.

Dan

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txgrn

07-04-2005 05:56:16

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-03-2005 07:03:14

Yeah, but I didn't solve your problem.....wish I could have.

Mark

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Dan Mitchell Tupelo, Ms

07-04-2005 07:30:11

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Re: oil pressure gauge in reply to txgrn, 07-04-2005 05:56:16

maybe not,..but you certianly gave me some ideas...thanks for that

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txgrn

07-04-2005 05:56:10

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-03-2005 07:03:14

Yeah, but I didn't solve your problem.....wish I could have.

Mark

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txgrn

07-03-2005 04:18:31

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Re: oil pressure gauge in reply to Jerry/MT, 07-02-2005 20:51:29

Couple of thoughts.

Bought a non-running tractor one time for a non-running price thank goodness. Got it home and got it spinning (not running, just spinning). No oil pressure. Checked for clogs....none. Checked the engine bearings found reason... very bad mains.
You could have a clog or you could have a worn out engine.

Several places to look

Remove the plugs or injectors, whichever.

If it has an oil filter remove it. Spin the engine with the starter and oil should run out the filter hole. If so the pump is working. Put it back.

Pull the valve cover and spin the engine for awhile to get oil to the valve train...the last thing to get lubed in the oil delivery chain. Got it good. No then engine bearings could be worn out (mains, rod inserts, cam).

If you had it you have a clog to your/in your gauge or a bad gauge. Just back up the line and find it. If you get back to the block a piece of baling wire may clear the hole. Leave the port open and spin the engine and see if it will/can pump oil out the hole.

Set your air compressor to 30 psig and shoot air into the gauge. Does it measure 30 psig?

On the blowby, it is common on engines having wear. The wear doesn't have to be severe and the engine can run for a very long time after it develops blowby. If everything is ok and you aren't burning oil at an unbearable rate don't worry about it.

If you had a vent pipe, like 3/4" in dia (Ford and JD have em) you could put a piece of garden hose over it and route it to your intake manifold with a hose barb and run it back thru the engine. That's what today's PCV systems do on auto's.

HTH

Mark

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Dan Mitchell Tupelo, Ms

07-03-2005 05:32:58

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Re: oil pressure gauge in reply to txgrn, 07-03-2005 04:18:31

thanks Mark,

sounds like you know what your'e talking about.

Dan

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txgrn

07-03-2005 06:17:11

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-03-2005 05:32:58

Just applying logic my man. This is what I'd do If I were you. That's why I like to talk about mechanisms on here. Things are designed to work a certain way. Once we understand how, all we have to do is turn stones over till something isn't right.

But I have been mechanin for some 50 years.

Mark

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Pitch

07-03-2005 04:04:15

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Re: oil pressure gauge in reply to Jerry/MT, 07-02-2005 20:51:29

White smoke from the breather is somewhat normal on a cold engine that does not get run a lot. It is mostly steam being boiled out of the oil. Great amounts of it would indicate blowby and ring problems but some is normal and should go away after 10 or 15 minutes. Your biggest and most immediate problem is lack of oil pressure. I would definetly remove and clean all the external oil lines, if that doesn't help you are probably looking at pump problems or excessive bearing clearance problems.

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Dan Mitchell Tupelo, Ms

07-03-2005 05:37:22

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Re: oil pressure gauge in reply to Pitch, 07-03-2005 04:04:15

Thanks Pitch,..makes sense, yep. It's not a lot of thick, boiling smoke,...just a faint bit that does disapate after a few minutes. I've got this tractor running well at this point but would you recommend an engine rebuild...? I beleive there is a kit available for a MM V, is'nt there..?

Dan

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skipper

07-03-2005 15:38:00

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Re: oil pressure gauge in reply to Dan Mitchell Tupelo, Ms, 07-03-2005 05:37:22

Dan,
It seems a little odd that there is no oil pressure without any other indications of a worn out engine. Are you sure: The oil pressure gauge works? The line does not have a kink? It is hooked in the right place? The oil filter wasn't plugged? Next, I probably would pull the rocker cover or something else to see how much oil was getting through. A little white smoke wouldn't scare me too much, but if there was any puffing or a stream I would get a little more cold feet. Good Luck
Skipper

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Dan Mitchell Tupelo, Ms

07-05-2005 17:20:35

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Re: oil pressure gauge in reply to skipper, 07-03-2005 15:38:00

hey Skipper...i think i found the problem...the oil canister that has the internal oil filter inside was clogged up with sludge. I've cleaned it out well but haven't tried checking it running yet, as i'm in the process of cleaning, sandblasting and grinding rust off,..trying to get ready for primer and paint. I'm in the market for an intake/exhaust manifold and a couple of extra plow feet...got any info..?

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