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Subject: Oh well, another issue

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Kimberly    Posted 03-13-2021 at 14:44:41 [URL] [DELETE]        [Reply] [Email]  
  • Oh well, another issue
  • I installed the hydraulic pump yesterday to find that one of the bolts would not tighten. I figured another stripped threads that I needed to repair. I remove the pump today to get started on the thread repair to only find the sides of the bolt hole gone in that area. My guess is that it cracked when something hit the bottom of the pump; which was repaired by someone; perhaps Dad. I will probably find the pieces in the bottom of the bucket of hydraulic oil that I drained from the tractor. The only thing I know to do is to try and use a slightly longer bolt; I did measure to see, and don't get too heavy-handed with the torquing. This is not something I am going to be able to repair.

    Kimberly    Posted 03-15-2021 at 15:32:51 [URL] [DELETE]        [Reply] [Email]  
  • Another question on hyd pump install
  • Four of the bolts goes into open bolt holes. Do I need to use a sealant on the threads on those four bolts to prevent fluid seepage by the threads?

    Kimberly    Posted 03-14-2021 at 21:31:13 [URL] [DELETE]        [Reply] [No Email]  
  • OK, maybe I have to loosen the bolts
  • I saw at another forum that I should have tightened 15 to 18 lb-ft of torque. However, it was mentioned to insert the pto shaft before tightening the bolts. So I guess that means I have to loosen the bolts and then insert the pto shaft and then torque again. 15-18 seems a bit low to me for this application.

    Bruce(OR)    Posted 03-15-2021 at 08:10:24 [URL] [DELETE]        [Reply] [No Email]  
  • Re: OK, maybe I have to loosen the bolts
  • That other forum should have also mentioned running the tractor very briefly to center the shaft.
    Whu? Run it with no fluid?
    No one here has probably ever done that. Except me. Those torque values that you have given all seem to be on the low side to me. Keeping the pump loose allows the shaft to center. Running it dry seemed a bit extreme to me, but then again, 1950's tech.

    Kimberly    Posted 03-15-2021 at 13:24:08 [URL] [DELETE]        [Reply] [Email]  
  • Re: OK, maybe I have to loosen the bolts
  • I read in another manual 18-21 lb-ft. Still seems low to me. My Ford manual FO-4 states to just tighten securely. It also stated to install the pump with the bolts loose, install the pto shaft. Then it said to rotate the engine several revolutions to centre the pump. So it shouldn't hurt anything to install the battery and hit the starter and let it turn over a few times.

    I have the FO-4 manual, don't know why I didn't read about the pump R&R.

    Kimberly    Posted 03-13-2021 at 16:43:40 [URL] [DELETE]        [Reply] [Email]  
  • Re: Oh well, another issue : UPDATE
  • I stole a bolt from another location; will have to see about a replacement later. The correct bolt for the pump is 1 3/8 and the bolt I stole was 1 5/8. That gave me enough to thread it and torque to 25 lb-ft. I think I will leave it at that. I might get some oil seepage at that bolt over time.

    What is the correct torque for this location? I took all bolts to 25 lb-ft. Should I do 30 on the others or am I good to go?

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