GRIZZLY DYNO


| June/July 1997


21 Broadway St., Leipsic, Ohio 45856

I have been interested in steam and gas engines since I was a boy when I worked for a gentleman in a lawnmower shop.

My wife and I have attended engine shows for years and have never seen them pulling under load or working. Most engines are just sitting there running.

I am also a pilot and thought I could use a 'run-out' prop. After I contacted a prop manufacturer, I found that they would not sell one to me for this purpose due to safety reasons.



Since I run a small welding shop which accumulates all types of scrap materials, I found an old positive displacement pump, which I used as the heart of Grizzly. Next I built a tank with runners, mounted the pump, added a pulley, pressure gauge and a tachometer. After some fine tuning and help from friends it was ready to go. It uses hydraulic oil and has a built-in relief valve.

My first several pulls were rather disappointing, as the engines tested didn't seem to produce the rated horsepower. Following more discussions with friends, we decided to test it on a tractor. We then put the tractor on a dynamometer for comparison. This worked well, so we slid the figures on our charts to match. Now the horsepower measurement is in line with engine ratings.














SUBSCRIBE TO GAS ENGINE MAGAZINE TODAY!

Gas Engine Magazine A_M 16Gas Engine Magazine is your best source for tractor and stationary gas engine information.  Subscribe and connect with more than 23,000 other gas engine collectors and build your knowledge, share your passion and search for parts, in the publication written by and for gas engine enthusiasts! Gas Engine Magazine brings you: restoration stories, company histories, and technical advice. Plus our Flywheel Forum column helps answer your engine inquiries!

Be sure to take advantage of the Square Deal Subscription Program.

  • No Missed Issues.

  • No Renewal Notices.

  • No Additional Cost.

The Square Deal Subscription Program is designed as a paperless transaction with automatic renewals at a preferred low rate.   With advanced electronic notification, a 100% satisfaction guarantee and an easy opt-out plan, the Square Deal Subscription Program is the best value, risk free, eco-friendliest way to subscribe.




Facebook YouTube

Classifieds


Copyright 2018, All Rights Reserved
Ogden Publications, Inc., 1503 SW 42nd St., Topeka, Kansas 66609-1265