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Subject: do a ring job on 1950 8N

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frank clinage    Posted 08-05-2019 at 11:00:53 [URL] [DELETE]        [Reply] [Email]  
  • do a ring job on 1950 8N
  • Im sorry but Im new here I purchased a 1950 8N and it run great but smoke a lot was going to do a ring job on it someone told me I could just drop the oil pan and pull out the piston and just put rings on them and insert them back in engine ? but I what rings do you buy or are all the same ..

    John in Mich    Posted 08-06-2019 at 14:44:02 [URL] [DELETE]        [Reply] [No Email]  
  • Re: do a ring job on 1950 8N
  • Just to clear up your process; both the pan and the head have to be removed.
    Remove the connecting rod bearing caps and keep them in the same order as pulled to put back on the same rods.
    There is likely a ID ridge at the top of the cylinder that should be removed with a ridge cutting tool.
    Be sure all ring groves in the piston are clean. They may have accumulated some carbon deposits. Crosshatch hone the cylinder very lightly.
    Use a ring compressor to reinstall the pistons in the same orientation that they were removed.
    This is just an outline. As said, have the manuals.

    Tim Daley(MI)    Posted 08-05-2019 at 13:00:01 [URL] [DELETE]        [Reply] [No Email]  
  • Re: do a ring job on 1950 8N
  • HiYa Frank and welcome aboard! First, Gibbs Rule #6 -Never apologize; it's a sign of weakness. Seriously though no need to say your sorry as we were all newbies at one time ourselves. I commend you for wanting to tackle the job yourself but I'd advise against listening to fellas who may mean well but like to cut corners from their shade tree mechanic experience. First order of business is to invest in the essential manuals to help better your understanding of the Ford N's. The I&T FO4 Manual, the Original 8N Operator Manual, and the 39-53 Master Parts Catalog are worth their weight in gold for servicing your N. You can get copies of all those at My mantra is the Dr. Demming approach -"DO THE JOB RIGHT THE FIRST TIME". Next is you need to determine if the smoke is from water or oil or both. White indicates water, black indicates oil. Start the engine cold and note what the oil pressure reading is. It is normal around 27 PSI. Run it good and hot for at least a half hour, the longer the better. Once hot check the oil level at idle and see where the pressure is now. 10-20 PSI is OK, showing some wear, but not bad. If oil drops below 10 PSI or worse below 5 PSI you need a major engine overhaul. The we can discuss where to go from there.


    Tim Daley(MI)

    frank w clinage    Posted 08-06-2019 at 06:07:51 [URL] [DELETE]        [Reply] [Email]  
  • Re: do a ring job on 1950 8N
  • Yes I've order the manuals .. Because of limited income I will do the work myself .. I'm not a mechanic but if I take it apart I can put it back. Thank for all the information. The smoke is gray and smell like burn oil the radiator did have a lot junk in it but clean it out .. I know this sounds stupid but have watch a lot of video I think I can do it but any help is really a blessing thanks again

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