Gearclash Posted March 9 Share Posted March 9 The gasoline 856 thread reminds me to post some pictures of this gas guzzler. It is a Continental L478 gasoline engine out of a Fox Super D forage harvester. It is 478 cubic inches and was listed as producing 153 flywheel horsepower. I forget the rpm it was rated at but it was in the lower 2000s. It has a 2 barrel downdraft Zenith carburetor. Looks to me like there is an oil cooler on the top of the filter head, not something you see on gasoline engine so often. I believe the cylinders are parent bore. This engine came to us in pieces along with a trailer load of Fox forage harvester parts back in the later part of the 90s. We had no use for the engine but just for fun I cleaned it up, put it back together and ran it a few times. Something somewhere leaked coolant into the pan so it got put in a back shed. Now it is going to get dismantled again as someone wants the heads, cam and crank and possibly other parts. I am going to keep the block. I will try to post some pictures as it comes apart. Wonder what the fuel consumption was? 2 Quote Link to comment Share on other sites More sharing options...
IHandJDman Posted March 9 Share Posted March 9 Shares origins with the 478 Hercules as an army ordinance designed engine. Quote Link to comment Share on other sites More sharing options...
Big Bud guy Posted March 9 Share Posted March 9 I think Gehl self propelled choppers used that engine. You can find big spark ignition engines like that in the oil field around here Quote Link to comment Share on other sites More sharing options...
Sledgehammer Posted March 9 Share Posted March 9 Fuel consumption? Answer “all it can get” 😊 3 Quote Link to comment Share on other sites More sharing options...
Gearclash Posted March 9 Author Share Posted March 9 2 hours ago, Big Bud guy said: I think Gehl self propelled choppers used that engine. You can find big spark ignition engines like that in the oil field around here Spark ignition engine can run into the really large size. The L478 is probably one of the largest gasoline engines that could be found in a self propelled farm implement. Some of the MM engines were larger maybe? The Fox Super D that this originally powered was also offered with the 4-71 Detroit which I think was more common. We owned a Detroit powered Super D for a time. Perfect job for a Detroit. Wind it up tight and throw the load at it. Quote Link to comment Share on other sites More sharing options...
Big Bud guy Posted March 9 Share Posted March 9 15 minutes ago, Gearclash said: Spark ignition engine can run into the really large size. The L478 is probably one of the largest gasoline engines that could be found in a self propelled farm implement. Some of the MM engines were larger maybe? The Fox Super D that this originally powered was also offered with the 4-71 Detroit which I think was more common. We owned a Detroit powered Super D for a time. Perfect job for a Detroit. Wind it up tight and throw the load at it. I’d have to look it up but the MM 4x4s I thought were north of 500 cubes. Quote Link to comment Share on other sites More sharing options...
Mr. Plow Posted March 9 Share Posted March 9 Put that it a truck and measure gallons per mile!!! Quote Link to comment Share on other sites More sharing options...
int 504 Posted March 9 Share Posted March 9 The military did but who is measuring? Quote Link to comment Share on other sites More sharing options...
Gearclash Posted March 10 Author Share Posted March 10 1 hour ago, Mr. Plow said: Put that it a truck and measure gallons per mile!!! There were Brockway trucks with the Continental L478 in them. Quote Link to comment Share on other sites More sharing options...
acem Posted March 10 Share Posted March 10 504 cubic inch in the A4T1600 running LPG. 1 Quote Link to comment Share on other sites More sharing options...
Absent Minded Farmer Posted March 10 Share Posted March 10 6 hours ago, Big Bud guy said: I think Gehl self propelled choppers used that engine. You can find big spark ignition engines like that in the oil field around here The gas engine on the big Gehl SP is a Waukesha 135GZU which are/were common in the gas fields. A lot of them would have been set up with multi coils or twin plugs or both. Good engines, but parts are now scarce thanks to GE. The smaller SP Gehls ran Red Seal engines, but I don't recall the model. That big 6 will make short work of the 50 gallon tank with the 3RN head on it. Mike 1 Quote Link to comment Share on other sites More sharing options...
Big Bud guy Posted March 10 Share Posted March 10 15 minutes ago, Absent Minded Farmer said: The gas engine on the big Gehl SP is a Waukesha 135GZU which are/were common in the gas fields. A lot of them would have been set up with multi coils or twin plugs or both. Good engines, but parts are now scarce thanks to GE. The smaller SP Gehls ran Red Seal engines, but I don't recall the model. That big 6 will make short work of the 50 gallon tank with the 3RN head on it. Mike How long and how big did Gehl make SP choppers? I pulled this out of a mid 50s brochure judging by the tractors in the brochure. Ya Waukesha is another one popular around here. Quote Link to comment Share on other sites More sharing options...
oldscoutdiesel Posted March 10 Share Posted March 10 Big Iron recently sold a MM HD 800A power unit rated at 200 HP. All painted up and ran very well brought $20,000. a 1 Quote Link to comment Share on other sites More sharing options...
Big Bud guy Posted March 10 Share Posted March 10 So what gas engine did these use? Quote Link to comment Share on other sites More sharing options...
M35A2 Posted March 10 Share Posted March 10 The m123 military 10 ton 6x6 truck had something like an 800+ cubic inch gas engine. Most were retrofitted with a diesel by 1957 and re-badged as M123A's Small handful survived the retro and surplussed out with gas engines. For some reason, I think it was less than 50 trucks that survived as gassers. The M125 was set up the same way, but was a cargo truck instead of the semi tractor. There were more of the M125's that survived with gas engines, but it was still not that many. Quote Link to comment Share on other sites More sharing options...
M35A2 Posted March 10 Share Posted March 10 Hall-Scott turned out some pretty high cubic inch, in-line 6 cylinder gas engines back in the day. Lots of Oshkosh trucks had them as the powerplant. I think they had one that was 1090 cubic inches. 1 Quote Link to comment Share on other sites More sharing options...
ny bill o Posted March 10 Share Posted March 10 you got me beat. My Fox SPF has just a Continental B427, rated at 125 hp. I used to joke that it had a 3/4" gas line. 1 Quote Link to comment Share on other sites More sharing options...
dver Posted March 10 Share Posted March 10 Gehl made the SP Chop-All up until 1966 I think. The SP Chop-All came out around 1960 or slightly before. I know there was one in our neighborhood in 1962. They came out with the SP Chop-King in 1967. My uncles bought one that year. Quote Link to comment Share on other sites More sharing options...
dver Posted March 10 Share Posted March 10 46 minutes ago, Big Bud guy said: The gas was a Chevy V8 and the diesel was a 4-71 Detroit. So what gas engine did these use? Quote Link to comment Share on other sites More sharing options...
Absent Minded Farmer Posted March 10 Share Posted March 10 1 hour ago, Big Bud guy said: How long and how big did Gehl make SP choppers? I pulled this out of a mid 50s brochure judging by the tractors in the brochure. Ya Waukesha is another one popular around here. The SP80 came out in 1955 & the last SP84 would have been made at the end of '64. The FH84. FH188 & SP188 came out in '65 & were discontinued at the end of '67, in favor of the CT300, CB600 & CB800. The SP's were discontinued due to lack of space. Retooling & adding on would have been expensive & cost them the race against Fox & NH. Deere wasn't too far off in the future with their SP either. That really would have sank Gehl's battleship. If you're interested, there's a book out there on the history of Gehl called, "Three Generations of Success, Gehl Company 1859 - 2009". It makes for a good read & there are some great photos in there too. They had quite the run. Mike 2 Quote Link to comment Share on other sites More sharing options...
from H to 80 Posted March 10 Share Posted March 10 9 hours ago, Big Bud guy said: How long and how big did Gehl make SP choppers? I pulled this out of a mid 50s brochure judging by the tractors in the brochure. Ya Waukesha is another one popular around here. I ran an SP88 Gehl self propelled chopper years ago,it had the Waukesha in it. It belonged to a neighbor who used to do custom chopping,we only used it to open up the field.If the ground was the least bit wet,it was pretty helpless,the front tires would sink and steering became a problem. Quote Link to comment Share on other sites More sharing options...
Gearclash Posted March 10 Author Share Posted March 10 9 hours ago, Big Bud guy said: How long and how big did Gehl make SP choppers? I pulled this out of a mid 50s brochure judging by the tractors in the brochure. Ya Waukesha is another one popular around here. Field Queen must have plagiarized their forage harvester layout from this contraption. Quote Link to comment Share on other sites More sharing options...
Gearclash Posted March 10 Author Share Posted March 10 9 hours ago, ny bill o said: you got me beat. My Fox SPF has just a Continental B427, rated at 125 hp. I used to joke that it had a 3/4" gas line. Is that the flathead 427 or the OHV? The exhaust manifold on yours looks different than other 427s I’ve seen. They all had two separate pipes coming off the manifold and I think they were entirely behind the hood tin. I have seen really no gasoline powered Fox choppers in real life. One or two used to be in the salvage row at a local dealer. My dad says that when he was young, the neighbor immediately to the west of him had a Super D with the L478. Otherwise what few of those old SP Foxs I see on local auctions have Detroits in them. Quote Link to comment Share on other sites More sharing options...
int 504 Posted March 10 Share Posted March 10 9 hours ago, M35A2 said: Hall-Scott turned out some pretty high cubic inch, in-line 6 cylinder gas engines back in the day. Lots of Oshkosh trucks had them as the powerplant. I think they had one that was 1090 cubic inches. That engine was in the M26 dragon wagon tank retriever from WW 2. Also used in West Coast log trucks / road tractors in the 50's at 300 hp. The successor Mack used the 844 V8 LeRoi. A friend and I almost bought an FWD 4x4 with snow blower. Big 6 cyl gas Waukesha up front and a V8 LeRoi for the blower. had 2 saddle tanks for the truck and a 275 gal for the blower. The airport manager wouldn't answer how many hrs it would run on the tanks so we didn't bid. Quote Link to comment Share on other sites More sharing options...
Gearclash Posted March 10 Author Share Posted March 10 Does anyone know for sure what the Case 377 gas was rated for hp that went in I believe the Case 900 and 930 tractors? I ask because we used to have a Case wheel loader with that engine. I guessed it to be around 90 hp. We used it to push silage which was a pretty power hungry job and it would burn right at 5 gallons an hour doing that. Quote Link to comment Share on other sites More sharing options...
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