This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity. | ||||||
The Forum | Parts and Services | Unofficial Allis Store | Tractor Shows | Serial Numbers | History |
170 & 175 gas motor balance |
Post Reply |
Author | ||
allisbred
Orange Level Access Joined: 28 Mar 2015 Location: Hanover Pa Points: 1011 |
Post Options
Thanks(0)
Posted: 20 Oct 2020 at 8:38am |
|
Were these engines balanced for higher rpms than the D17 from Allis?
|
||
Sponsored Links | ||
DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19501 |
Post Options
Thanks(0)
|
|
The gas engines all ran 2000 RPM max high idle. Made no difference if it was a D-17 or 170 or 175, so my answer is no.
|
||
DanD
Orange Level Joined: 11 Sep 2009 Location: WI Points: 856 |
Post Options
Thanks(0)
|
|
There is no difference in the moving components that would make any difference in balanc among a D17, 170 or 175. Next step to make a 4 cylinder smoother is a balanceer like in a 6080 engine and probably in your newer 4 cylinder car engine. Basically a couple of weights turning opposite direction from each other and turning 2X crankshaft speed.
|
||
ksbowman
Silver Level Joined: 19 Mar 2013 Location: Paola, Ks Points: 226 |
Post Options
Thanks(0)
|
|
|
||
DanD
Orange Level Joined: 11 Sep 2009 Location: WI Points: 856 |
Post Options
Thanks(0)
|
|
What I described is not just similar..it is a Lanchester Balancer! |
||
allisbred
Orange Level Access Joined: 28 Mar 2015 Location: Hanover Pa Points: 1011 |
Post Options
Thanks(0)
|
|
Thanks guys, I was just wondering if there were updates through the years. Kevin
|
||
DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19501 |
Post Options
Thanks(0)
|
|
Once the D-17 was new enough to get the full-flow oiling system, the changes weren't very many from 1960 until the last 175 gas in 1975?? or so. The series 4 D-17 crankshaft was "tuff-trided" which made the journal surfaces harder to resist wear. Most of the series 4 gassers I overhauled for the first time never needed the crankshaft re-ground undersized because of this. The 170 got the compression raised over the D-17 engines and the 175 got a little more compression and a higher lift camshaft. Governor weights and springs for the 170/175 were different than any D-17 engine. That's about it for the G-226 series engine that, as far as gasoline farm tractor powerplants go, was a very durable and reliable engine, especially when compared to some of the competitive models of the same time frame..
|
||
JC-WI
Orange Level Access Joined: 11 Sep 2009 Location: wisconsin Points: 33629 |
Post Options
Thanks(0)
|
|
Now, what made the first 180 engine to run so smooth? Then when they started production of the 180 4 cylinder, there was serious vibrations and eventually took them back and put in the 6 cylinder engines. So did anyone ever look into why that first engine was so smooth? Maybe it has a counter balanced crankshaft? Be interesting to find that first smooth running 180 and drain the poil out of the pan and stick a bore scope up there and see what it really looks like inside it.
|
||
He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that." |
||
DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19501 |
Post Options
Thanks(0)
|
|
It was nothing special. That's what confused them. My take on the problem is this. It wasn't as much of an engine problem as it was a sheet metal problem. That prototype tractor had some handmade parts, like platform, fenders, battery box, etc. The bends and or metal thickness was such that the vibration was minimal and was given a pass to go forward into production. I've written on here before about the black 7000 platform tractor I had to fix as a Company Rep for the same issue.....vibration at your feet or at the steering wheel. All I did was redo the platform to made it more solid and the customer was more than satisfied. This was after the previous Company Rep had the engine balanced and torque tube bearings all replaced, all to accomplish nothing as far as satisfying the complaint.
|
||
m16ty
Orange Level Joined: 28 Jan 2011 Location: TN Points: 1463 |
Post Options
Thanks(0)
|
|
I think it was just luck (or unlucky, the way it turned out). They should have known better, just due to the design, but that test tractor ran smooth and they thought they were ok. I've played with the governor on these 226 engines, and you can turn some crazy rpms for a 4 cylinder and it will hold together. You will get a lot of vibration though.
Edited by m16ty - 24 Oct 2020 at 10:32pm |
||
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |