Colt Case Ingersoll Garden Tractors

I think you're right @FUTZ !

The fittings are in pretty bad shape on the outside, rusted. I noticed that on some sides less rust and a letter on the bottom. Out of the many fittings I was able to clean and put together the stamping on the bottom. It says
"Stratoflex 6 2 WIR"

I got excited hoping to find the specs and true recommended hose for the type but it must be so old nothing comes up except that it's a Parker thing.

I looked a little closer at the ones I have. So they are for 1 wire hose.

I wish these machines could speak. I'd sit for hours listening to the stories this backhoe could tell. One day I'll show you all the welded patches it has. But here, for now look at this cylinder fittings. Clearly it's been outside for years.

You think that's bad? I thought so too, until I saw this one.


No wrench or pipe wrench could bite into what was left of that fitting. Some heat and chisel action got it moving.

Soon the other one's out too.

Why would there be a spring in there?

@Eugen the piping that runs the far end of the cylinder is a slip fit. The spring keeps the piping seated at the other end of the cylinder. There will be O-rings on both ends of the pipe.

Yep, the spring is right. It needs room to expand and contract a little with the change in temps.

https://manuals.ccigt.com/ServiceManual ... -50741.pdf Page 19 item #1 is the spring in question. Notice that tubing has and O-ring on each end. The tube is removed by drawing it through the threaded port.

Awesome! Thank you @Spike188 ! I'll put new o-rings them. Had no idea the tube was serviceable!

Eugen wrote: ↑Mon Apr 03, 2023 4:20 pm

thebuildist wrote: ↑Mon Apr 03, 2023 3:31 pm Any chance you can measure those thread pitches for me? I might need to manufacture a couple of those wiz-bang things.

Bob

Here you go. The thread on the inside of the sleeve is left handed, and is not 60 degrees even, it is oriented like pike teeth to bite into the hose so it does not pull out easy. The depth of that thread seems to be 0.05.

99F05F5F-0918-42C1-AD13-8BB9A01DAEE9.jpeg

You, sir, are a gentleman and a scholar!

Btw that's called a "buttress" thread.


Bob

Here's a mold of the inner biting thread using play dough.


CD4BC2B5-5C48-41E1-B0CE-CEC48DC1458D.jpeg

Got two 44" pieces of new hose and put one of the fittings on for test. Didn't go easy, had to use quite some strength to screw it on. This is promising.

Congrats on getting the re-usable fittings to work @Eugen Looks Great! - It was my experience that leaving a tiny gap (1mm - 1/16") between the end of the hose and the inside of the fitting where it bottoms out gives the hose a little room to expand when the insert is being screwed in and some lube on the inner fitting can help too...