«Previous    Next»
Rebuilt Older Model Dozer
When brothers Ron, Royce and J.D. Crawley went looking for a dozer to use in their farm operation, they couldn't justify the cost of a new or used unit in operational condition. Instead, they bought a junked-out 1953 Oliver cleat-track dozer and put it back into operation.
"It had been sitting around unused for 20 years," says J.D. Crawley, who also runs a custom machine shop. "Water and rust had ruined the engine beyond repair. It would have cost $10,000 to replace the original engine, if you could have found one. However, everything else was in excellent condition so we repowered it using a 307 V-8 Chevy engine which we rebuilt using a high torque low rpm cam-shaft (to reduce fuel consumption and get maximum horsepower at low rpm) and oversize pistons.
"We installed a fiber, four finger non-slip clutch and left the original 4-speed truck transmission that came with the engine, which was taken from a 1978 GMC.
"The original engine governed out at 1,300 rpm's. The 307 engine speed was 2,200 to 2,400 rpm's but by using the 4-speed transmission between the 307 engine and the dozer transmission input shaft, we can select the speeds we need.
We still have the 4-speed dozer transmission to select work speeds.
"We installed a constant speed governor and an extra water pump stacked on top of the original to keep the engine running at approximately 180? under full load. We built a brush protector cab and painted it all safety yellow. Fuel consumption is approximately 3 gal. per hour.
"We've used this dozer for brush grubbing and road building on our farms for a year with no problems. Total out-of-pocket cost of the rebuilt rig was just $3,000.
Contact: FARM SHOW Followup, Crawley's Auto & Machine Shop, 4858 Bohon Rd., Harrodsburg, Kent. 40330 (ph 606 865-4578 or 606 366-5272).

  Click here to download page story appeared in.

  Click here to read entire issue

To read the rest of this story, download this issue below or click here to register with your account number.
Order the Issue Containing This Story
1997 - Volume #21, Issue #1