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DrAllis 
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Joined: 12 Sep 2009
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 Posted: 22 Jun 2018 at 10:01pm |
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So, how do you factor in the 3450 psi injectors on a 200 engine to 2900 psi injectors on an older 190 XT engine ??? I see in my Service Book a 190 XT with 2900 psi injectors was set at 65.5 to 67.5 cc's @ 2,200 RPM. A newer 190XT with timing advance had 3450 psi injectors and fuel setting was 71 cc's. All 200's were as you say 70 to 72 cc's but also with the higher 3450 psi injector settings. After all the rear end problems I don't think their goal was to increase HP. They were maintaining HP with higher injector pressure settings. Dyno a 190 XT with 2900 psi injectors and then re-test (same day, same air temps and humidity) at 3450 psi. No way will you gain HP....it will have to show some HP loss.
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AC720Man
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Joined: 10 Oct 2016
Location: Shenandoah, Va
Points: 4915
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Posted: 22 Jun 2018 at 10:35pm |
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My neighbor bought a 1974 200 for $1,200. It needs engine rebuild but the rest of it looks pretty good. Of course he is taking the sellers word that trans/power director is good. It will be a parts tractor for his other 200 if things dont check out. For $1,200, I Hinkle he did well.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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AC720Man
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Joined: 10 Oct 2016
Location: Shenandoah, Va
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Posted: 22 Jun 2018 at 10:52pm |
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The 200 has the improved rear end, other than that I’m not convinced the 200 is a better tractor. The 190XT is a simpler machine with nearly the same hp. In some ways I like my XT better than my neighbors 200. Not a fan of the short shift power director and they seamed to have had more issues. The longer throw PD on my XT makes it much easier to feather starts when running a baler. No doubt the 200 is a good tractor, especially if you find a we’ll maintained one.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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calico190xt68
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Joined: 12 Jan 2017
Location: Frankton, IN
Points: 803
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Posted: 23 Jun 2018 at 7:15am |
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I certainly learned a lot from this thread despite it wondering away from Wilfords original topic. Thanks drallis and injed. I think Wilford is new to the forum and probably thinks we're a bunch of kooks. Redbank if you drag a 200 to Indiana, you are welcome to stop by.
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80 7010, 80 7020. 67 190XTD Series I w/500 Loader, AC 2000 Plow, AC 4 row Planter, AC 77G Rake, Member Indiana A-C Partners, Member TAC
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Wilford1999
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Joined: 15 Jun 2018
Location: Vinton, Iowa
Points: 8
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Posted: 23 Jun 2018 at 7:29am |
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I have been looking stuff up on this forum for a few years, just never made an account.I just absorb all the knowledge being shared.
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Red Bank
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Joined: 18 Apr 2018
Location: Germanton NC
Points: 1051
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Posted: 23 Jun 2018 at 7:59am |
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Wilford did you make an offer or did we scare you away from it?
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calico190xt68
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Joined: 12 Jan 2017
Location: Frankton, IN
Points: 803
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Posted: 23 Jun 2018 at 8:21am |
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Wilford, that's good and glad to see you post. You already know how this can go since you have been lurking. I have been trying to engage more since I have benefitted greatly from this site.
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80 7010, 80 7020. 67 190XTD Series I w/500 Loader, AC 2000 Plow, AC 4 row Planter, AC 77G Rake, Member Indiana A-C Partners, Member TAC
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Wilford1999
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Joined: 15 Jun 2018
Location: Vinton, Iowa
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Posted: 23 Jun 2018 at 8:47am |
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The guy deleted his post, so I'm assuming he sold it or got tired of people coming to his house cause when I called him he said he had a lot of tire kickers coming to look at it.
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injpumpEd
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Joined: 13 Sep 2009
Location: Walnut IL
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Posted: 24 Jun 2018 at 7:37pm |
 DrAllis wrote:
So, how do you factor in the 3450 psi injectors on a 200 engine to 2900 psi injectors on an older 190 XT engine ??? I see in my Service Book a 190 XT with 2900 psi injectors was set at 65.5 to 67.5 cc's @ 2,200 RPM. A newer 190XT with timing advance had 3450 psi injectors and fuel setting was 71 cc's. All 200's were as you say 70 to 72 cc's but also with the higher 3450 psi injector settings. After all the rear end problems I don't think their goal was to increase HP. They were maintaining HP with higher injector pressure settings. Dyno a 190 XT with 2900 psi injectors and then re-test (same day, same air temps and humidity) at 3450 psi. No way will you gain HP....it will have to show some HP loss. |
The specs I have are the Stanadyne specs, and they are all set with 2500 psi 12SD12 test injectors. I've found over the years, the pump will still pump similar quantities, even at varying opening pressures. The increase is opening pressure was attempts at cleaning up smoke. Remember in those days 3000 psi was a lot. The 2800 engine was 2850 psi, but turbo 2900 was 3150, by the books I have, for XT & 200. The 7000 shows 3700 psi for AC or Bosch inj, 7010/20 show 4050psi for AC inj, 4000 psi for Bosch. Back then they didn't know how much the pumps could withstand lol!
Edited by injpumpEd - 25 Jun 2018 at 3:01pm
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Joe(TX)
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Joined: 11 Sep 2009
Location: Weatherford. TX
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Posted: 25 Jun 2018 at 2:51pm |
Amos wrote:
It has a notched plate The plate wears and you replace it or build it up to get the lever to move far enough and to stay in place
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The first 200's had the PD lever like the 190. Later ones used the notched plate. A common problem on the early ones was linkage wear that caused the power director valve to not fully engage. There is a side plate that the PD valve bolts to on the right side.
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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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Lonn
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Joined: 16 Sep 2009
Location: Назарово,Russia
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Posted: 26 Jun 2018 at 7:08am |
Alright, I remember reading in the Allis-Chalmers bible, Norm Swinford's book I think, where the 200 was company tested at around 105 PTO HP. AC didn't want to spend the money to retest at Nebraska so they sold it under the original 190XT specs which allowed the 200 to be sold in Nebraska without being tested. Nebraska law requires or required testing at the U's testing site before a tractor could be sold in the state.
I don't know any facts, I wasn't there but I'm going to take Norm Swinford's book as true at this point.
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calico190xt68
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Joined: 12 Jan 2017
Location: Frankton, IN
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Posted: 26 Jun 2018 at 12:28pm |
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I never knew that Nebraska required the testing by law. I just assumed it was a moneymaking scheme by the University. That also explains the missing 200 test. Thanks for that Lonn. I guess I need to read that Swinford book.
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80 7010, 80 7020. 67 190XTD Series I w/500 Loader, AC 2000 Plow, AC 4 row Planter, AC 77G Rake, Member Indiana A-C Partners, Member TAC
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