Soundguy
Old Timer
- Joined
- Mar 11, 2002
- Messages
- 52,238
- Location
- Central florida
- Tractor
- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
Deja vue.
I just got done dropping the belly pump and pulling the top cover on my 52 8n. I just parked it back in the barn a few minutes ago. Total working time for disassembly, cleaning, repair , reassembly, adding oil, and testing was about 8.5-9 hours.
Last weekend I went to move some dirt to fill in holes from the rain around the fence, and I was lifting some good 500# scoops of wet dirt.. hit a bump and blew the bottom gasket out of the pump. Found out why.. some time in its life, someone pulled the pump and put it backtogether with no gaskets.. just rtv.... And I found some string in the relief / check valve not letting it seat. That has been a problem with a leak down on my lift since I got it.. but never got around to fixing.
I decided to do the 'correct' repair, and got a new NAA piston, oring and backup washer.. honed my old cylinder ( which was surprisingly good ), resealed the cylinder, adjusted the cam pin, changed out a few cotter pins, and then resealed the pump with the correct paper gaskets, and changed the relief / check valves. Cleaned out the sump with mineral spirits, changes the pto gasket ( also rtv by prev owner ) and changesd out the side cover inspection port gaskets, and top cover gasket.
Wasn't too bad of a job.. just greasy and alot of laying on your back looking up into an empy cast iron cavity with a 65# pump sitting on your chest.. then manhandling that 853 lift cover, and getting the control rod into the valve linkage on the pump. Result was a nice new lift, that has now been holding up a stack of old tires and a rim for an hour or so.. and has shown no signs of creeping down. A very good feeling after quite a full days work. While I was in, I inspected the diffy ring gear.. looked great.. rivits are tight and no metal chips!
Soundguy
I just got done dropping the belly pump and pulling the top cover on my 52 8n. I just parked it back in the barn a few minutes ago. Total working time for disassembly, cleaning, repair , reassembly, adding oil, and testing was about 8.5-9 hours.
Last weekend I went to move some dirt to fill in holes from the rain around the fence, and I was lifting some good 500# scoops of wet dirt.. hit a bump and blew the bottom gasket out of the pump. Found out why.. some time in its life, someone pulled the pump and put it backtogether with no gaskets.. just rtv.... And I found some string in the relief / check valve not letting it seat. That has been a problem with a leak down on my lift since I got it.. but never got around to fixing.
I decided to do the 'correct' repair, and got a new NAA piston, oring and backup washer.. honed my old cylinder ( which was surprisingly good ), resealed the cylinder, adjusted the cam pin, changed out a few cotter pins, and then resealed the pump with the correct paper gaskets, and changed the relief / check valves. Cleaned out the sump with mineral spirits, changes the pto gasket ( also rtv by prev owner ) and changesd out the side cover inspection port gaskets, and top cover gasket.
Wasn't too bad of a job.. just greasy and alot of laying on your back looking up into an empy cast iron cavity with a 65# pump sitting on your chest.. then manhandling that 853 lift cover, and getting the control rod into the valve linkage on the pump. Result was a nice new lift, that has now been holding up a stack of old tires and a rim for an hour or so.. and has shown no signs of creeping down. A very good feeling after quite a full days work. While I was in, I inspected the diffy ring gear.. looked great.. rivits are tight and no metal chips!
Soundguy