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Subject: 9N Oil Canister

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Bob Ward    Posted 05-16-2020 at 06:28:47 [URL] [DELETE]        [Reply] [Email]  
  • 9N Oil Canister
  • I'm just finishing up rebuilding my 9N. I'm puzzled with the Canister flow thru. I understand the oil flows from the block, into the bottom of the Canister thru the tube in the middle and evidently thru two (2) holes in the tube. These two holes are only 1/32" ⏀ or smaller is this right ? Seems small to me to get any type of flow.

    Bob Ward    Posted 05-18-2020 at 17:14:40 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N Oil Canister
  • This is just a big Thank You to those who chimed in about my oil concern. Seems I was making a Mountain out of a Mole Hill, but what else is a 78 YO to do?
    Thanks again: Dean
    Tim
    Tom
    Randy
    Steve
    JMOR
    No let's put it to rest 😷 Ciao

    Steve Dabrowski    Posted 05-16-2020 at 15:16:54 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • I'm no expert, but most vehicles of these years had only by-pass filters and they are not particularly effective. At the time detergent oils were not in general use and if you really wanted a clean engine you changed the oil often, generally a thousand miles or less was standard for cars and trucks. I kind of think the filters might have just been a marketing gimmick anyway. If you ever pulled apart an old Ford flathead during the 60's or later it was sure to be filled with sludge so I really doubt the effectiveness of the filters.

    I don't worry about changing my filters on my 9 and 8N's, just the oil. Stays pretty clean if done regularly, but I don't put much time on them anyway.

    Just my 2 cents!

    JMOR    Posted 05-17-2020 at 11:07:27 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • I think the filter has a chance at some clean up, as at WOT, 6 quarts pass thru it every 5 minutes. Now, admittedly, some is likely the same quart twice and maybe some quart never makes it in that 5 minute period, but it will be different in the following 5 minutes and eventually all will be filtered.

    Steve Dabrowski    Posted 05-17-2020 at 16:08:23 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • Yes, after thinking it over I kind of admitted the same, it probably does some good anyway.

    Tom    Posted 05-16-2020 at 07:40:49 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N Oil Canister
  • The oil filtration on flathead Ford V8 and N tractor engines is a bypass system. A small amount of oil is bypassed from the engine oil flow to go to the filter and drain back into the crankcase. This bypass flow must be small so that adequate flow is supplied to the engine.

    Tim Daley(MI)    Posted 05-16-2020 at 06:43:14 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • Bob-
    I've never investigated the oil canister internal workings. OEM 9N oil lines were 1/8". FORD changed the oil line to 1/4" and added an oil line to the governor in early 1943 on the 2N resumed standard 2N production.

    FORD N-SERIES TRACTOR LUBRICATION GALLEY:

    Tim Daley(MI)

    Bob    Posted 05-16-2020 at 08:12:22 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N Oil Canister
  • Hi Tim and Tom
    Thanks for the reply. Have since found out that the hole size in the canister tube is 0.059 which is less than 1/32"
    Would it be advisable to switch to a full flow??

    Randy (PA)    Posted 05-16-2020 at 23:16:04 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • .059 is not less than 1/32. It is less than 1/16, which is .062.

    JMOR    Posted 05-16-2020 at 10:13:10 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • From pump to engine bearings is a path that would make inserting a full flow filter virtually impossible. Need an engine re-design.

    Tim Daley(MI)    Posted 05-16-2020 at 09:15:22 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • Bob-
    No, 1/32" is half of .062", or 1/16" ... plenty of passageway. Are you having problems? What does you gauge read at start up? At warm idle? OEM spec is 27 PSI at start up idle. If your gauge reads much lower when hot, engine likely tired and worn. The system has worked for over 700,000 models so I'd advise to leave it as is.

    Tim Daley(MI)

    Bob    Posted 05-16-2020 at 14:41:46 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N Oil Canister
  • Hi Tim,
    I said 1/32" or smaller. I found info that stated the holes were .059, will check them with my tip cleaner for the torch
    🤠

    Tim Daley(MI)    Posted 05-17-2020 at 07:14:48 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N Oil Canister
  • Tom-
    "...Have since found out that the hole size in the canister tube is 0.059 which is less than 1/32"..." -your words/post from above. Like I said, what, if any, issues are you having? Low or no oil pressure on gauge? Yes? Investigate why -bad gauge, plugged line. Not going to fix just by rebuilding oil pump, but you're half way to an engine rebuild when you drop the oil pan. I think you are concerning yourself over nothing and I wouldn't add any whistles and bells to a system that has worked for 80 years or more. Good questions Tom but advise you to move on.

    Tim Daley(MI)

    Tom    Posted 05-17-2020 at 18:32:39 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N Oil Canister
  • Tim,

    All I said was "The oil filtration on flathead Ford V8 and N tractor engines is a bypass system. A small amount of oil is bypassed from the engine oil flow to go to the filter and drain back into the crankcase. This bypass flow must be small so that adequate flow is supplied to the engine."
    What did I say wrong that you want me to move on and stay off this website?
    Tom

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