GT1800 Hydro refresh for our friends!

[ebinmaine 67,487]

10 hours ago, TractorEd said:

You’re a real blessing to Tom and Ali.  And to all that get to see your hard work!

😇

 

 

Thank you Ed!!

[ebinmaine 67,487]

We still have a leak...

 

After partial disassembly we can see a lot of fluid near the hard metal pipe at the front of the transmission.  That pipe leads to the oil filter.  

 

 

[Handy Don 12,217]

12 hours ago, ebinmaine said:

That crowfoot socket @JCM mentioned? Use it to try tightening the hose fitting to the elbow?

Edited July 30 by Handy Don

[cleat 5,957]

12 hours ago, ebinmaine said:

We still have a leak...

 

After partial disassembly we can see a lot of fluid near the hard metal pipe at the front of the transmission.  That pipe leads to the oil filter.  

 

 

 

That fitting has an O ring under the nut right at the transmission and is a flare type fitting  on the other side of the 90 degree fitting.

Determining which side of the 90 will help in diagnosing the leak.

 

[ebinmaine 67,487]

Trina found that the pipe was cracked right at the flare fitting. 

 

 

 

 

 

[cleat 5,957]

That looks like it might leak all right.

[Handy Don 12,217]

3 hours ago, ebinmaine said:

Trina found that the pipe was cracked right at the flare fitting. 

Good sleuthing! Just follow the fluid....

 

Since you have good access, I’d recommend replacing with a hard tube. I used copper-nickel brake line which has more than adequate strength, won’t rust, and can be worked with simple bending and flare tools. Not a good idea to try bending without tools--it kinks easily.

I needed a couple of practice flares to get a good sense of how much tube to leave in the flare tool to have enough for the flarel. I also got new flare sleeves and flare nuts, of course, the nuts are possibly re-usable but why chance it.

[ebinmaine 67,487]

5 hours ago, Handy Don said:

I also got new flare sleeves and flare nuts, of course, the nuts are possibly re-usable but why chance it.

 

What part is the "flare sleeve"?

 

This whole assembly is very rusty. 

I don't think the nuts would even be savable. 

[cleat 5,957]

That is a low pressure return line so nothing too special as far as pressure is concerned so thin wall tubing would work.

 

There are a few on ebay.

 

Just be sure to get the right one as they are at least two different styles.

 

This one is likely like yours and has a 90 degree fitting on the filter housing.

 

The other style puts another bend in the line and uses a straight fitting at the filter housing.

 

In theory you could use either as long as you had the right fitting but there is one catch.

The one with the straight fitting also mounts the filter back just a bit (1/2 or 3/4" I don't remember exactly).

Again not a big deal but you would need to drill another set of holes in the gas tank/fender support if your does not have the extra set of holes already (which I doubt you do).

 

So far as I know, the other end of the tube that connects to the axle is the same on them all so you just need to make sure the filter end is correct.

 

Edited August 2 by cleat

[ebinmaine 67,487]

IF.  

I can get the right fittings is there any reason not to use a flexible hose?

 

 

[cleat 5,957]

I don't see why not.

There should be very little pressure.

[Handy Don 12,217]

1 hour ago, ebinmaine said:

IF.  

I can get the right fittings is there any reason not to use a flexible hose

Based on pressure, no reason.

Convenience? Flexible hoses are two to three times as thick and don’t turn as sharply. Routing through narrow twisty places and supporting against vibration and friction is the tricky part.

 

Buying one in good condition that is already bent to the shape you need is a good thought.

This one seems to have the same number of bends as the “cracked” one. Dimensions do matter, as @cleat notes.

 

I assumed (perhaps mistakenly) that you’d go ahead and make your own replacement. My work to extend the hydraulics on the 520 chassis required several new connections so fabricating was the only option and I’ve gained confidence in this area!

 

5 hours ago, ebinmaine said:

What part is the "flare sleeve"?

At each end of a metal hydraulic line using JIC-type connections, there is a sleeve that fits between the tubing and the tube nut--it supports the malleable flared end of the tube against the hard tapered end of the male fitting and against the turning compression friction of the tube nut. I lifted this illustration from a vendor webpage:

Edited August 2 by Handy Don

[ebinmaine 67,487]

14 minutes ago, Handy Don said:

I assumed (perhaps mistakenly) that you’d go ahead and make your own replacement

 

Still might. I have a tubing bender but lack skill and practice. 

 

We're exploring options based on convenience, cost,  and availability of parts. 

 

 

15 minutes ago, Handy Don said:

each end of a metal hydraulic line using JIC-type connections, there is a sleeve that fits between the tubing and the tube nut--it supports the malleable flared end of the tube against the hard tapered end of the male fitting and against the turning compression friction of the tube nut.

 So this is a little more involved than a vehicle brake line. 

 No sleeves in those. 

[Handy Don 12,217]

25 minutes ago, ebinmaine said:

So this is a little more involved than a vehicle brake line. 

 No sleeves in those. 

Yep, the brake lines I’ve touched used a different type of fitting and a “double flare” on the end of the tube. The male threaded part fits over the end of the tube and presses the double flare into the female fitting. Those were “AN” fittings with tighter tolerances than the JIC fittings.

[ebinmaine 67,487]

7 hours ago, Handy Don said:

Yep, the brake lines I’ve touched used a different type of fitting and a “double flare” on the end of the tube. The male threaded part fits over the end of the tube and presses the double flare into the female fitting. Those were “AN” fittings with tighter tolerances than the JIC fittings.

 

 

Component Repair and Supply LLC. Gorham Maine.

 

That guy remembered me from the one single other time that I've been in there maybe? 3 years ago? When I was looking into getting the old 1970 Charger Hydro running that did not work out.

 

I explained what I was up to. Showed him what I had to work with. Told him I was open to suggestions. He said you could go either hard line or small diameter hose but with the scant space available the hard line might be easier to handle.

I bought enough tubing to make the piece I want at least twice. Maybe three times. That way if I screw it up I can just start over and not worry about it.

 

 

[Bill D 1,920]

16 hours ago, ebinmaine said:

 

 

Component Repair and Supply LLC. Gorham Maine.

 

That guy remembered me from the one single other time that I've been in there maybe? 3 years ago? When I was looking into getting the old 1970 Charger Hydro running that did not work out.

 

I explained what I was up to. Showed him what I had to work with. Told him I was open to suggestions. He said you could go either hard line or small diameter hose but with the scant space available the hard line might be easier to handle.

I bought enough tubing to make the piece I want at least twice. Maybe three times. That way if I screw it up I can just start over and not worry about it.

 

 

I'm all for learning how to make things when possible, but wouldn't it be faster to just purchase a replacement line?  Your friend probably needs his tractor back soon if he mows with it 

[ebinmaine 67,487]

29 minutes ago, Bill D said:

I'm all for learning how to make things when possible, but wouldn't it be faster to just purchase a replacement line?  Your friend probably needs his tractor back soon if he mows with it 

 

Nope. They have a push mower.  The tractor is obviously better.... but not a necessity. 

 

I could get one mail order but that's a minimum 3 to 5 days shipping to get here too.  

 

 

 

[ebinmaine 67,487]

On 8/2/2024 at 8:12 AM, cleat said:

There are a few on ebay.

I'm finding a few of the 520 type with the wrong bend.  

Where are you finding the correct pipe?

 

[cleat 5,957]

32 minutes ago, ebinmaine said:

I'm finding a few of the 520 type with the wrong bend.  

Where are you finding the correct pipe?

 

You are correct, There are none currently listed.

I thought I saw one or two a few days ago.

 

I would send you one if I had one.

 

You can use the other style by drilling two holes in the fender bracket but you would still need the straight fitting for the filter housing.

 

 

 

[ebinmaine 67,487]

8 minutes ago, cleat said:

You are correct, There are none currently listed.

I thought I saw one or two a few days ago.

 

I would send you one if I had one.

 

You can use the other style by drilling two holes in the fender bracket but you would still need the straight fitting for the filter housing.

 

 

 

 

 

No worries Cleat.  Thanks. 

 

A to Z Tractor in PA shows one. 

 

I'll order that.  

 

 

 

I ask because it turns out I don't have the tooling to create two tight 90⁰ bends close to one another. 

I could have the above mentioned Hydraulics shop do it but I'd rather just get the right part.  

 

 

 

[ebinmaine 67,487]

On 8/2/2024 at 8:12 AM, cleat said:

There are a few on ebay.

@cleat

 

I got the pipe from Lincoln at A to Z Tractor  based on what part numbers I could find various places online. 

 

Here's a screenshot of your GT1600 Hydro project showing the pipe we need. 

 

 

 

 

The one we got is pre-bent to a form where the yellow line is so it interferes with the brake mechanism. 

 

 

 

Do you have a correct part number or any other suggestions? 

 

 

[ebinmaine 67,487]

When I let Lincoln at A to Z Tractor know what we had going on here he immediately sent another pipe right out.  

 

Here's the two side by side:

 

 

And all installed. 

 

 

 

 

[ebinmaine 67,487]

All back together. 

Runs. Drives. No leaks. 

 

We'll run it. Cool it. Repeat. 

Then send it home.  

 

 

[SylvanLakeWH 25,557]