'63 F560G with Loader - hydraulic leak

[phill_mi]

Thanks for all the helpful information. I spent most of the morning changing out the water pump on the TO-30. I plan to go back out and try to get the other end of the pipe lose (from what appears to be a standard black pipe 3/4 NPTF to 1/2 NPTF Reducer) on the 560 loader. Then I can take the pipe to Bond for advice or to my work workshop if I can locate a tap and die set and a reamer. The tees (both old and new) have the tapered seat and it looks to me like the pipe at one time had a tapper on the inside edge of the end of the pipe which is messed up now. I really appreciate all the help which I have printed out to take with me for discussion with Bond or a parts house.

[phill_mi]

I just noticed that the new tee that I got, Gates G60184-0606, has NPSM threads, and the link Sam posted indicated that connecting NPSM onto NPT would result in leaking, so me thinks this is a problem. The pipe certainly has tapered threads. The part that Ricky linked to is NPT so I will get that part ordered (or do a little more research).

[ricky racer]

I just noticed that the new tee that I got, Gates G60184-0606, has NPSM threads, and the link Sam posted indicated that connecting NPSM onto NPT would result in leaking, so me thinks this is a problem. The pipe certainly has tapered threads. The part that Ricky linked to is NPT so I will get that part ordered (or do a little more research).

Phil,did you ever get this resolved?

[phill_mi]

Thanks for asking. No and I am so frustrated and not sure what to do next. I am getting to a point on my C60 project where I need the loader to function to move parts of the Cub between the barn and the heated garage to proceed with that project.

I realized that the Gates part was the wrong fitting to connect to a NPT pipe, as it is NPSM on all three connections. So I ordered a NPT tee with a NPSM branch from the link you had shared and it arrived last week and was installed on Wednesday.
https://shop.hoseandfittings.com/catalog/Interchanges/Steel_Fitting_Interchange_With/9456/9456X6X6X6.html?_session_id=5cd0bd4693764477ae5bf3ef06f3307c

I do not have, and have not found a 3/8 pipe threader that I can borrow. There is a set at Harbor Freight at a reasonable price, but without any handles to mount the die in. So I used a file on the end of the pipe. I also found a cone shaped grinding stone that I mounted in a drill to dress up the 30 degree bevel on the ID of the pipe end. Then I installed the 9456 tee and the two end pipe connects just don't seem to get tight. And when I power up the loader and put down pressure on the loader a fountain of oil comes streaming out.

So I was debating what to do this morning. Plan A get the 3/8 threader (without handle) from HF and try to dress the threads using vise-grips as a handle. Or remove the pipe and take to local rural parts store to see if they can make a hose to replace it (or suggest anther solution). I can only get to that particular store on Saturdays, and time for that is getting away from me for today. (And as I wait for parts for the C60, I am contemplating whether I have a oil pressure problem and what to do with my Fergie TO-30.)
Thanks for any encouragement. Phill

[ricky racer]

Are there any fabrication shops near you? They would likely have a pipe threader and would rethread your pipe for you. Any local plumbers would surely do it for you too. To bad I'm not closer, I have a pipe threader you could use...

[phill_mi]

I will keep searching and see if I can track down a plumber that I worked with a few months back at work. He was a subcontractor of the general contractor, both of which are gone now. And what would you use to shape that interior bevel? I tried the large cone in this kit:
https://www.amazon.com/Ingersoll-Rand-9800-Die-Grinder-Stones/dp/B000E8ZE7C/ref=sr_1_4?crid=1THWMI8FA8FYD&keywords=stone+grinder+bits&qid=1676756634&s=hi&sprefix=stone+grinder+bits%2Ctools%2C114&sr=1-4

[ricky racer]

I will keep searching and see if I can track down a plumber that I worked with a few months back at work. He was a subcontractor of the general contractor, both of which are gone now. And what would you use to shape that interior bevel? I tried the large cone in this kit:
https://www.amazon.com/Ingersoll-Rand-9800-Die-Grinder-Stones/dp/B000E8ZE7C/ref=sr_1_4?crid=1THWMI8FA8FYD&keywords=stone+grinder+bits&qid=1676756634&s=hi&sprefix=stone+grinder+bits%2Ctools%2C114&sr=1-4

Maybe that's something the plumber can help you with...

[phill_mi]

I located and borrowed 3/8 pipe threading tools and worked on the long pipe going to the tee last weekend. I think it held but as suspected the pipe to the other side of the tee leaked. It will be harder to fix as it is u shaped with very short legs that are only a few inches between threads and bend. I had planned to work on that problem today, along with my new C60 head bolts from TM, but norovirus changed those plans for now.

[ricky racer]

It's always something....

[SONNY]

I always use thread sealant on the fittings to help seal them up. some guys frown on its use but its been good to me many times! You can get liquid sealer or teflon tape. I use both and they have worked for me.

[phill_mi]

I rethreaded the pipe on the forward side of the tee and assembled the loader. That seems to have resolved the problem, at least in regard to the gusher that happened with the slightest down pressure. I did notice a very small infrequent drip when I had the front of the tractor lifted into the air with maximum down pressure. I will try to resolve that as well, but at least the loader is functional now, without shooting a stream of oil across the barn. I really appreciate all the assistance in resolving this problem! Phill