N Board Forum - Expanded Thread Page

Subject: valve job cost

[Back] [Return to Top of Forum]

paul appleton    Posted 10-09-2019 at 07:05:54 [URL] [DELETE]        [Reply] [Email]  
  • valve job cost
  • Anyone have an idea of what I could tie up in a valve job on an old 9N? I live in the West Ok./East Ar. region. I've got 700 bucks tied up in this machine and don't know if I want to cut my losses or continue. In addition, it will need brakes, wiring and paint, all of which I will do myself so no labor costs are involved. This tractor, I will probably keep just to have something nice sitting in the workshop I've rebuilt an Allis B before but find the 9N is a completely different and more complicated animal. Beginning to wonder if I have bitten off more than I can chew.

    lyle hamilton    Posted 10-11-2019 at 21:22:34 [URL] [DELETE]        [Reply] [Email]  
  • Re: valve job cost
  • I noticed, no one mentioned anything about head gasket or loose cracked head. Doesn't any one here find it unusual he has nothing at each hole.....
    Paul, pull head, look in each bore, you have water in oil ? These things are stupid easy machines that run forever no matter what you hear

    paul appleton    Posted 10-12-2019 at 09:12:22 [URL] [DELETE]        [Reply] [Email]  
  • Re: valve job cost
  • Pulling the head will be the next thing I do. There was no water in oil. The biggest problem I have is not being much of a mechanic. Just enjoy playing with stuff. Though I was born during the days of the flat head I never had the need to get into one. I have no intention of taking it into a head shop because I bought this thing for myself to play with. I just don't see many local people who have much knowledge of this motor. I went into a parts store the other day and asked for a flat head spring compressor and the guy gave me a weird look then immediately jumped into the computer to see what he could find out on the internet. I'll post the results when I get the head removed. Thanks for the reply.

    TheOldHokie    Posted 10-12-2019 at 11:03:51 [URL] [DELETE]        [Reply] [No Email]  
  • Re: valve job cost
  • You do realize that the valves in a flathead engine are in the block? For a valve job you take the block to the shop not the head.


    paul appleton    Posted 10-12-2019 at 12:51:13 [URL] [DELETE]        [Reply] [Email]  
  • Re: valve job cost
  • Hi Hokie,
    Chuckle. I only said I wasn't much of a mechanic, I never said I couldn't see. Just bein' a wise guy. I appreciate all the comments I get from you guys. Folks like you got me through an Allis rework and I'm sure you'll help me get through this one as well.
    With each post I get more info and I read the N board daily. Who knows, you may make a so-so mechanic out of me yet, if I'm lucky to live long enough.

    Dave H    Posted 10-11-2019 at 08:10:27 [URL] [DELETE]        [Reply] [No Email]  
  • Re: valve job cost
  • I think you should do a compression test first and see what is up.

    Maybe you don't need a "valve job."

    If need be you can always take the head off and knock the valves out and see what the status is.

    Give it a try>

    paul appleton    Posted 10-11-2019 at 12:41:57 [URL] [DELETE]        [Reply] [Email]  
  • Re: valve job cost
  • I did pull plugs one at a time and put a finger in the hole while turning it over. I could never feel pressure change. Absolutely no suckin' or blowin'. Very little resistance turning engine over and I assumed the valves would be the easiest to look at first. Not having a pressure gauge I obviously couldn't get a reading if there was one. I will, however, find a gauge and see if I can get a reading. Thanks for the comeback.

    Ultradog MN    Posted 10-09-2019 at 19:54:34 [URL] [DELETE]        [Reply] [No Email]  
  • Re: valve job cost
  • The advantage to an Allis B is that it had a valve in head engine vs the Flat head Ns. A simple valve job on a B meant you brought the head in and it came back fresh.
    A flat head means you have to bring the whole engine in and they'll sell you a sleeve and piston job, and a crank grind and bearings, plus boil the block, maybe line bore and deck the thing. Then there's surfacing the head oh, and a valve job too.
    Pretty soon your $700 tractor is a $2700 tractor and you don't have paint or wires or tires on it yet.
    Buyer beware.

    paul appleton    Posted 10-10-2019 at 08:14:34 [URL] [DELETE]        [Reply] [Email]  
  • Re: valve job cost
  • That is sure a different perspective. Anyone need parts for a 9N? Thanks for the reply Ultradog.

    JMOR    Posted 10-09-2019 at 22:32:03 [URL] [DELETE]        [Reply] [No Email]  
  • Re: valve job cost
  • Probably true for those without the backbone to say no!

    Ultradog MN    Posted 10-10-2019 at 04:36:35 [URL] [DELETE]        [Reply] [No Email]  
  • Re: valve job cost
  • And over the years we've both seen it happen many times - partly due to the encouragement from tractor forums.

    paul appleton    Posted 10-09-2019 at 10:44:45 [URL] [DELETE]        [Reply] [Email]  
  • Re: valve job cost
  • Thanks for the info Hokie. I might keep this one and have some fun finding what makes it tick.

    TheOldHokie    Posted 10-09-2019 at 09:26:20 [URL] [DELETE]        [Reply] [No Email]  
  • Re: valve job cost
  • New valves, guides, and springs will run you about $160. Probably another $100 for a machine shop to recut and/or replace damaged seats. I'll call that $250 to $300 to do it right.

    Old tractors like to nickle and dime you to death so that likely won't be the end of it.


    [Back] [Return to Top of Forum]