Re: Re: Re: Re: Re: need some help with cultivators

Posted by Larry in CO on February 04, 2003 at 15:35:22 from (32.97.110.142):

In Reply to: Re: Re: Re: Re: need some help with cultivators posted by will on February 04, 2003 at 14:38:10:

Will, There are more differences in the H and SH than just 2 horsepower. Here is a copy of a post that STEVEN@ND posted back in August 2002 relating these differences. Thanks Larry

"H: 152 cubic inches - Super H: 164 cubic inches
H: 5.9:1 compression ratio - Super H: 6.1:1 comp
Super H had improved combustion chambers on the head, rounded with tops slanting away from the spark plug - this reduced "pinging."
Also the Super H had exhaust valve rotators while the H did not. Super H camshaft held the intake valves open longer. Crankshaft was beefed up, larger diameter main and rod journals. Aluminum pistons came in the Super H along with other improvements on the pistons. Air intake from carb was increased in size, larger exhaust ports were also utilized. Carb was increased from 1 inch to 1 1/4 inches on the Super. Super H had an all new clutch that was 10 1/2 inches instead of the 10 inch on the H. New clutch facing material had copper wire to increase the life; radial grooves reduced grabbing and smoothed the release. In the transmission there were more pilot bearings and the gears were widened and induction-hardened. Speeds were also slightly changed. Rear axle and differential had better bearings with more capacity, and of course the disc brakes. The Super H's with live hydralics had a different front cover and beefed up timing gears, also the battery was relocated to under the seat. Above info comes from Guy Fay's book "Farmall Letter Series Tractors"

In short, the Super H is NOT an H with a bigger engine, it was a whole new machine."

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