Which JD engines are Turbos?

[rScotty]

Specifically wondering about the 110 TBL, but also curious about other 50 hp and under JD motors. Anyone know for sure?
Thanks, scotty

 

[Spudland_Dave]

Dunno all of em, but I know the one in my 3520 is (37 hp) and the 3720 is also Turboed....

 

[jdbower]

Checking the online specs the 110 TLB doesn't seem to be a turbo, as mentioned most of the higher-end 3x20 and 4x20 series are.

 

[RWolf]

My 5103 45HP is.

 

[rScotty]

My 5103 45HP is.

That reminds me that I've been wanting to ask about the engine in your 5103. Most of the 5x03 models were 3 cylinder motors and the newer models are 4 and 5 cylinders of about the same displacement. Is there any difference in the way they run? Noise level? Vibration? Unlike the 4s, I've heard that the 3 cylinder crank is a naturally balanced configuration...don't know about the 5 cylinder models like the 5225.
Thanks, rScotty

 

[rScotty]

And I still don't know if the 110 is a turbo or not...Does anyone have a shop or parts manual and can look this up?
Thanks, rScotty

 

[Wombat125]

That reminds me that I've been wanting to ask about the engine in your 5103. Most of the 5x03 models were 3 cylinder motors and the newer models are 4 and 5 cylinders of about the same displacement. Is there any difference in the way they run? Noise level? Vibration? Unlike the 4s, I've heard that the 3 cylinder crank is a naturally balanced configuration...don't know about the 5 cylinder models like the 5225.

Since their introduction, all of the 5003 series and even the new 5D/5E series Deeres use the same 2.9L Powertech 3 cyl motor. Only the latest models are turbocharged though; presumably for emissions. I am good with that since I live at 6600' above sea level. My 5303 does not vibrate excessively, but it is noisy. That's mostly because there is no real muffler between the manifold and the exhaust pipe.

I am almost postive that the 43 hp, 4 cyl, Yanmar/TNV88 motor in the 110TLB is naturally aspirated. The 8 hp Kohler in my John Deere 110 is definitely N/A.

 

[jdbower]

Out of curiosity, why the interest in the engine details? Seems like more of a sports car thing but I guess it'll work with tractors too.

The balance of an engine has to do with not only the number of cylinders but also the arrangement. IIRC an inline 5 is balanced but a V6 needs a harmonic balancer - but it's been a while since I've actually been into this sort of thing. Either way the engine out of the factory is balanced, it's just a matter of whether some of the horsepower is lost due to the balancer. Luckily I'm pretty certain that the same is true for tractors as it is for cars - that all the engine details are included in the horsepower numbers. That is, an inline 3 cylinder 35Hp tractor is no different from a 4 cylinder 35HP tractor from a user perspective. The HP and torque curves may be different, but that's more of a factor of specific engine design than general engine architecture - a newer engine with a worse design may outperform an older engine with a better design simply because technology relentlessly marches on.

Since the specs don't state it's a turbo (and the specs for turbo clearly state such) I'd say it's a safe bet the 110 is normally aspirated.

 

[rScotty]

Out of curiosity, why the interest in the engine details? Seems like more of a sports car thing but I guess it'll work with tractors too.

Good question. I like to work with mechanical things - that's one of the reasons I like tractors. Shucks, I think we all like to do things ourself. If we didn't...well....the price of a new tractor would buy a lot of hired labor.

The horsepower of an engine never interests me much. Most tractors - even the littler compacts - seem to have more than enough horsepower at sea level. I live at 7000 feet and work at 9000 feet. High altitude makes a turbo nice to have - though not absolutely necessary in a smaller tractor. A bigger reason for the interest in the mechanical part of tractors is that since I'm doing this for enjoyment I'd prefer my tractor time to be spent pleasantly. Things like engine noise and vibration and gear/pump whine detract from that. I spent plenty of uncomfortable hours in the fields as a kid and have owned tractors which didn't even try to make driving them comfortable. No more.
The difficulty in even finding out if the 110 TLB is turbocharged or not might be an indication that my interest in the greasy parts isn't much shared these days. That's OK; I like dirt too.
rscotty

 

[Spudland_Dave]

IMO...When I was shopping for a tractor, Turbo was on the list of must have's..... Turboed Diesels are "old news"....Outside of compact tractors, there are not many non-turbo diesels...Turboed diesels are just that much more efficent...case in point, smaller engine (CID) in the 3520 then the 3320 but the 3520 has MUCH more seat of the pants oomph...mostly in the aspect of power recovery...you get it to bog down and the turbo really helps keep the power there. Maybe its all in my head, but thats what I experienced when I test drove 3320's vs 3520's. While once you started killing the 3320, it went all downhill, but when you pushed the 3520 you could tell there was some turbo recovery happening...