Large Scale Central

Rebuilding my Oil Pull 'Pup'

Way back about '96 or '97 I built a 1/3 size tractor based on a Rumely Oil Pull. These things are commonly called ‘pups’. Like most folks I used a lot of lawn tractor parts. Unlike many, I completely scratchbuild the frame from odds n ends.

The engine is a 1935 IHC LA of 1-1/2 - 2-1/2HP size (output depends on what speed you set it to run at)

The front axle and wheels were a cut down McCormick-Deering horse forecart. This would prove a fateful decision.

The rear wheels were from a McC-D horse drawn mower. The transaxle an Eclipse 4 speed from a lawn tractor.

When it was completed, I took it to two shows. The Clarion County Fair - where it won a Best of Show ribbon as a “recycling project”, and our home antique machinery show at Portersville. During the second show I was busy elsewhere and it was sitting on display unattended – BIG mistake! Some mutton heads decided it was there for their brats to fool with… One of the things about steel wheels with a frost band is that you can’t turn them when you aren’t moving. They tried anyway, and broke the teeth on the steering gear. They also forced the clutch lever and broke the linkage. I was so mad that it got brought home and parked – for almost 15 years! It got moved as I went through two moves and a divorce, but never got repaired or anything else done with it. Until this month… Kim had been bugging me all winter to fix it for her to play with. I found a heavier steering box from an Allis-Chalmers B, but installing it would require re-arranging things. It took me two days to pull the rear wheels, shields and wood trim, cut out the transaxle mounts and remove the broken clutch and steering stuff. – It’s taken another three to fabricate new brackets for the steering box and transaxle, especially since I’m hampered by lack of access to a decent welder here (a little 110v AC buzz box isn’t what I’d call ‘decent’), and it’s too heavy to be loading and unloading it in Kim’s Quest 3 or 4 times. Yes, the transaxle is crooked, I hadn’t finished adjusting it when the rain chased me inside…

The engine had also stuck from sitting, but that was a quick fix. Some Kroil and rocking the flywheel freed it up in about 15 minutes. I want to re-do the drive using v-belts instead of flat belts, and need to get a short pitman arm for the steering box, yet. With luck, it might be running again by mid-July, since I need to do some serious scrounging. So many projects, so little positive cash flow…

That’s a cool little tractor!
Years ago, I had the chance to buy a “mini cat” dozer real cheap. I Passed.
Wish now I hadn’t.
Good luck with the build.

You continue to amaze me, Mik!

I can’t wait to see the finished product.

Is it done yet? :stuck_out_tongue:

No, not done. Ran into another minor snag instead. The gas tank leaks, badly, and I don’t have another one here that will fit the space.

Looking at about $50-75 in parts, yet. – IF I can find them used. Probably 3 times that new. But I have $1 to last until the first. Luckily, there is a fairly close show with a good flea market that weekend. Meanwhile, I got lots of little bits to clean up, and repaint until then… I have the paint - a decent brush might be another story

Most of the “progress” accomplished over the last week or two hasn’t been anything to much to actually show.

  • I put the first of two (or 3 if needed) stabilizer links in for the transaxle.
  • I drilled the rear wheels, axles for heavier (3/8") pins, and installed those.
  • I ordered a drive pulley and steering pitman arm.
  • I removed the engine to get to the gas tank to see if I can fix the leak - since I can’t find one to fit.
  • I think I figured out how to set up the clutch and brake. I just need to get a 2 foot piece of 3/4" shaft and make up some actuator arms.
  • Kim found a pic from the '97 Clarion County Fair showing it with it’s purple ribbon.
  • I started painting it a darker (forest) green, and bought red, too.
  • I got 1/2" box to make quick connect posts for the canopy roof - so we can still haul it in Kim’s mini van.

Well, I did something amazingly stupid yesterday. While trying to get the gib key that holds the belt pulley in place out, I managed to break the pulley… ok, it 'sploded. And the going rate for one of those things seems to be $75!

I may have found one that will work in my father’s scrap pile but it just isn’t nearly as nice as the correct one…

Tonight I worked on fixing the old gas tank. I’ll check for leaks in the morning.

Finally, a little progress to show… I’m getting really tired of negative cash flow… Would you believe not having $3 for bolts held up the show for nearly a month? Clutch/brake rocker shaft fabricated - 3/4" stock might be overkill, but it shouldn’t fail again.

(http://i1082.photobucket.com/albums/j371/AlleghenyValley/Pup/P8120001.jpg)

Installed…

(http://i1082.photobucket.com/albums/j371/AlleghenyValley/Pup/P8130002.jpg)

Clutch in and working – brakes are next…

(http://i1082.photobucket.com/albums/j371/AlleghenyValley/Pup/P8220005.jpg)

Today I spent some time refitting the old wood trim. A decade in a damp, dirty basement was not particularly kind to the oak. I’m debating the merits of a heavy sanding and resealing.

(http://i1082.photobucket.com/albums/j371/AlleghenyValley/Pup/P8310003.jpg)

I still need to fabricate some shields and other bits, but it’s together again.

(http://i1082.photobucket.com/albums/j371/AlleghenyValley/Pup/P8310002.jpg)

(http://i1082.photobucket.com/albums/j371/AlleghenyValley/Pup/P8310001.jpg)

starting a real one…
[youtube]http://www.youtube.com/watch?v=oUW0_L3RX9k[/youtube]

That thing is so damn cute!
Tell us about the steam roller off to the right.

Mik, how neat it is to see your models. Thanks for directing me to this site, I’m not fully done yet, but hopefully soon I can figure it all out and will post pics. I have more done on my English showmans road locomotive and hope you and others will enjoy seeing it. This is a test to see if I’ve gotten this far successfully as well as a compliment to you on the pup and your other models.