Industrial Engine

Shu47

Shu47

Senior Member
I have an industrial engine that came out of a family friends orchard sprayer years ago. The only reason it was removed was because he had to much trouble starting it every year. Unfortunately it was not stored properly and it is stuck. I finally decided to take the heads off and see how bad it is. I found there would be significant work to get it going. I haven't decided what I will do with it yet. Anyway, I laid a ruler in one of the bores where the piston is all the way down and it appears to be about 4 inches deep. Could this engine have a 4 inch stroke?

nameplate.jpg Bore.jpg
 
If there is a piston at the bottom I'm assuming there is a piston at the top. If it's flush with the block then it's a 4 inch crank.
 
You probably have the 337 cu. in. engine used in lincolns and f8 trucks. According to motors manual it was 3.5 bore by 4 3/8 stroke. rated 150 hp. It is a highly collectable engine.
 
Yes, it looks like a 239, but look on Van Pelt's web site and that will describe the 337 engine and give the specs.
 
Tonight when I get home I will post some more pictures. I have more but since I was only originally asking about the stroke I did not include them all. More pics later after I get off work.
 
Shu47 said:
Tonight when I get home I will post some more pictures. I have more but since I was only originally asking about the stroke I did not include them all. More pics later after I get off work.
Click to expand...



Does the outside look like this? And is one valve visibly bigger than the other? If so it’s a Ford 337 8EQ/Lincoln 8EL
ec8ec6bea110563265a9abc2c4e4a049.jpg
cd02e9293c16f306bee1939b81c49391.jpg



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Pilot31135 said:
Does the outside look like this? And is one valve visibly bigger than the other? If so it’s a Ford 337 8EQ/Lincoln 8EL
ec8ec6bea110563265a9abc2c4e4a049.jpg
cd02e9293c16f306bee1939b81c49391.jpg


Nope. Does not look like that at all. The valve look the same size and the heads say 8RT??????. Will post more pics tonight.
Click to expand...
 
Pilot31135 said:
Does the outside look like this? And is one valve visibly bigger than the other? If so it’s a Ford 337 8EQ/Lincoln 8EL


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Click to expand...


I'm not sure WHY there's still any question about it being a 337? "8RNN" seems pretty definitive. DD


354738




354724
 
I read the serial number wrong (the "1001" is part of the model number). The serial number is pretty high (84631?), so it may be late production, which makes the Merc crank a possibility, I guess.
 
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It is odd that the 8RNN label clearly states 239 cu in. But it does appear to have a 4" crank in it. Obviously unless it's history is known from new, you can only go on what is in front of you. If it is not cracked it is probably a great contender for a rebuild.

Mart.
 
If it ever had the crank & pistons changed, it could have a Merc 4-ich crank. It's been a long time since that stuff was new. I'm not sure what an orchard sprayer is but where I was originally from in KS, the irrigation type engines would run for weeks at a time. If it was used a lot then it may have been rebuilt a time or two.
 
An orchard sprayer is pulled behind a tractor as you drive down the rows of trees to spray a fog of insecticides to keep bugs out of your fruit. The engine would be used to drive a pump for pressurizing the spray nozzles to create the fog. They actually get used very little since spraying only happens a few times each year mostly on the spring.
Sprayer.jpgOrchard sprayer 2.jpg
Front.jpgLeft Head.jpg
Left Side.jpgRear.jpg

I haven't measured the bore yet but there is little to no ridge. Once I get a chance to measure the bore I guess I will know if it has been rebuilt or not but from what I know of the history of the engine I highly doubt it. If I remember correctly this came out of the sprayer in the late 70s
 
Look closely at the last picture. Notice that the oil pump drive gear cover looks like it is a casting. Also, it seems to have "1CM" cast into that cover (that may be "8CM"; I can't be sure). A couple of years ago, the stock engine in my '51 Ford started making a noise, so I pulled it and replaced it with a '51 Mercury engine I had. The Ford engine had a stamped steel plate covering the oil pump gear. As I recall, it had "8BA" stamped in it. The Mercury engine I installed had a cast cover marked "1CM" like this one. From my experience with 1951 FOMOCO engines, this one was probably a Mercury.
 
Tubman has a point. I enlarged the pic and it does read 1CM. The ruler says 4". 99.9 % probability it's a Merc motor.

Mart.
 
The 1CM time frame (mid 1951) and related parts with that prefix include the crankshaft for the Merc-O-Matic torque converter, the rotator type valves, that cast oil pump idler cover, and these blocks usually have 1CM casting mark in the tappet valley. Later engines have the cast idler cover too so they may all have that part number.

Check the crankshaft counterweight cheeks for 6-inch width and 5/8" clean out plugs. With the crank out of the block, the stroke can be verified. Some of those crusty pistons might need some extra persuasion to get them out so rotating in the block may take some work to get there.
 
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