770 Puller

[AntiquePuller770]

I ah e been pulling competitively for since I was born I?m 16 now but my family has been pulling for 35+ years. I have a 1960 Oliver 770 I am turning into a competitive antique puller. I had a leak in my water pump but only when the system is pressurized and warm but I took the cap of and doesn?t leak so I put a radiator cap that won?t pressurize I he system and I deleted the alternator since it only runs for 10-20 minutes at a time and charge the battery between runs. It?s strictly a puller so this isn?t a problem for me. I was wondering if anybody had any ideas or suggestions on myy tractor and how to get more ho out of it. Any suggestions or criticism is welcome.

 

[showcrop]

Well, the most basic things are to get the rules of the clubs that you will be pulling with, and get your weight sorted out so that you can be five lbs under the max for your light class then add 500 or whatever is called for and enter your heavy class. You will need weight bars front and rear in order to be able to place weights where you need them in order to balance your tractor. See that your tires meet the tire rules. See that your hitch meets the hitch rules. You want it at max height in each class. If your front is heavy when pulling your first class you can transfer weight to the rear tires by sliding your drawbar back a couple inches. See if wheelie bars are required. Find out about RPM limits and get set for them. Olivers are usually allowed higher RPMs. Cheap additional power can come from an oversized carburetor and cylinder head work.

 

[greg oliver]

Check out Chuck?s Oliver 77 on you tube. He pulls all the way up to 9500 lbs . Nice running and working tractor and he sometimes posts on the Oliver board.

 

[AntiquePuller770]

Do you have a link for the video.

 

[johns]

Is this a gas tractor? What weight classes? Speed limit? is the engine stock? This info will help us give better advice.

 

[AntiquePuller770]

Class 4,500-7,000 3mph and 6mph classes engine stock except higher rpm

 

[bp4455]

The 310 certainly helps

 

[AntiquePuller770]

It is a gas

 

[4010 puller]

Or a 250/292 Chevy, I?ve been told some people have installed them in Oliver?s to gain a little more power.not a direct bolt in.

 

[johns]

At 3mph your probably ok with near stock hp at 4500-5500#. 6mph your gonna struggle, at least if your pulling on a sticky track with a short chain on the sled. A 310 swap would be the easiest way to compete at 6mph.

 

[535353m]

I had a 77 with a 300 Ford in it with homemade header,sounded just like an old Bronco. steel crank,5300 rpms all the way to 300 ft.orginal carb,reduced timing,small diameter tires,worked great,an Audi oil filter let side shields fit.

 

[showcrop]

(quoted from post at 08:44:18 08/17/19) I had a 77 with a 300 Ford in it with homemade header,sounded just like an old Bronco. steel crank,5300 rpms all the way to 300 ft.orginal carb,reduced timing,small diameter tires,worked great,an Audi oil filter let side shields fit.

535353M, A friend just across the line in MA pulled an Oliford 70 for 6-8 years. His first time out he pulled the sled out the end of the track and down the driveway to the town road. After that they put up a row of cones at the end of the track.