Colt Case Ingersoll Garden Tractors

Was in the mood to do something different today so I heated these guys up with the propane torch and added some material to make it thicker. The plan is to throw them in the lathe and turn to size for interference fit and cold/hot pressing in the head.

Eugen wrote: ↑Thu Feb 02, 2023 8:50 pm Was in the mood to do something different today so I heated these guys up with the propane torch and added some material to make it thicker. The plan is to throw them in the lathe and turn to size for interference fit and cold/hot pressing in the head.


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You may have to ream them out after pressing in the head . The weld will contract and shrink the bore .

DavidBarkey wrote: ↑Thu Feb 02, 2023 9:14 pm You may have to ream them out after pressing in the head . The weld will contract and shrink the bore .

For sure!
Dim dim dim,
I scream
Spit the Jim Beam
I'm ready to ream
Weld with a light beam
Have no seam
Work like a team!

That's my morning rap.

Eugen wrote: ↑Fri Feb 03, 2023 7:56 am

DavidBarkey wrote: ↑Thu Feb 02, 2023 9:14 pm You may have to ream them out after pressing in the head . The weld will contract and shrink the bore .

For sure!
Dim dim dim,
I scream
Spit the Jim Beam
I'm ready to ream
Weld with a light beam
Have no seam
Work like a team!

That's my morning rap.

Noel

Eugen wrote: ↑Fri Feb 03, 2023 7:56 am

DavidBarkey wrote: ↑Thu Feb 02, 2023 9:14 pm You may have to ream them out after pressing in the head . The weld will contract and shrink the bore .

For sure!
Dim dim dim,
I scream
Spit the Jim Beam
I'm ready to ream
Weld with a light beam
Have no seam
Work like a team!

That's my morning rap.

I’m glad you were just rapping. I was worried you were having a stroke!

After doing it once I noticed the "new" lathe chuck was not centred somehow and the turning was not right. So weld again, put the old chuck in, turn again. Kinda ready for the press. I'm debating whether to use jb weld too or not.

Oven heating the head and icy cold guides turned 3 mil larger diameter than the holes in the head. Didn't go in easy, hope it's a sign they don't come loose easily. Left a tiny collar of larger diameter on the inner end, because on the other side there's a snap ring. Hopefully that blocks the guides in the head from both sides.

Reamed too.





I'd be a lot happier with new bronze sleeves in the guides. Maybe next time.


Forgot if I said already, but I measured the bore. It's standard at the edge of wear tolerance. If the head and valves turn out to be working well I will entertain the idea of going for a 001 over rebuild.

@Eugen I will have to drop over when it is running in something . Curious to hear the difference between flat head and ohv Kohlers under load .

DavidBarkey wrote: ↑Sun Feb 05, 2023 2:53 pm @Eugen I will have to drop over when it is running in something . Curious to hear the difference between flat head and ohv Kohlers under load .

Great idea!

With the valve guides firmly grafted into the head, I was wondering what state the seats are in. What do you know, one of the seats started turning in the head together with the seat cutter. Bad seat! -- says I. Proceeded to peen it, and then done that to the other for good measure. Cutting then went better, of course.


Next would be the valves.