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Denis in MI 
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Location: Norvell, MI
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 Topic: WD45 governor
Posted: 24 Jan 2011 at 7:58pm |
I have a WD45 that the previous owner removed a broken governor weight and put it in the tool box and put the tractor back to work. I want to fix this and was wondering if I could use a newer tractor governor for a little more power. I want the governor functional but would not mind the engine running a little faster than normal as long as it is a safe speed for it. The engine is stock and in what I consider to be good condition. I think I will be safe as a little over the factory rating and it will definately be better than now since the tractor only has one weight in it.
Thanks,
Denis
Edited by Denis in MI - 24 Jan 2011 at 7:58pm
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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mlpankey
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Posted: 24 Jan 2011 at 8:26pm |
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you can buy the weights from agco and a 175 weights and spring will give you the rpms
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Denis in MI
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Posted: 24 Jan 2011 at 8:36pm |
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will 175 engine rpms be OK for a working tractor
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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Denis in MI
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Posted: 24 Jan 2011 at 8:47pm |
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OK new question my W226 is factory rated at 1400 RPMs a D-17 is rated @ 1650, and the 170/175 is rated @ 1800. Will the 1800 speed be safe on a working tractor, will I see a increase in power or will it fall on its face at the high end because it can't breath through the stock head, manifold and carb.
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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Steve M C/IL
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Posted: 24 Jan 2011 at 8:55pm |
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Don't know what is safe and what is not.I put a different spring in my 45 about 30 yrs ago.I think it was for a D17 not a 170.Anyway it would run the higher rpm but I just didn't feel comforable so I back it off to what sounds about right.Always have the "extra" if needed.Now on another note...DRallis once claimed that the brgs would'nt hold up in a 45 at the higher rpm. All D17s had fully grooved mains which feed pressure to the rods at all times
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mlpankey
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Posted: 24 Jan 2011 at 8:56pm |
It shouldnt fall on its face it should need the carburator enriched a little . If your valve springs are up for the challenge of the extra rpms.
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Denis in MI
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Posted: 24 Jan 2011 at 8:59pm |
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So maybe for longevity of the engine I should just stick it the spare weights and spring I have from a WC they should put me right about back to stock right?
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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Steve M C/IL
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Posted: 24 Jan 2011 at 9:04pm |
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When I used to plow with mine,it didn't seem to run much faster under heavy load compared to the old spring.The bigger humm on flat ground didn't seem to translate in furrow.
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Steve M C/IL
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Posted: 24 Jan 2011 at 9:41pm |
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Parts show same wts for wc-d17.Put the wts you have in and keep the 45 gov spring.Should be like normal.What is it that makes us want more power?
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Denis in MI
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Posted: 24 Jan 2011 at 9:46pm |
I think I will put the WC weights in and see how it performs since I don't really need more "power / fuel consumption"
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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LouSWPA
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Posted: 24 Jan 2011 at 10:37pm |
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Somebody correct me if I'm wrong, but it seems to me that the difference of 450 rpm is hardly worth worrying about with respect to the bearings health. Lugging an engine is far harder on bearings than a little more RPM's. Valve springs may be a different issue
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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Dans 7080
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Posted: 24 Jan 2011 at 10:48pm |
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I have a D17 spring in my 45. I got disqualified at a pull for too many RPM's. Mine runs 2300. Im allowed 10% over, I think he told me I was allowed 1780??
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DrAllis
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Posted: 25 Jan 2011 at 6:17am |
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WC-WD-WD45's only oil the rod bearings 1/3 of the time.....D17-170-175 oil the rod bearings 100% of the time. Same exact rod bearing, just a difference in how much oil it gets.
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Brian G. NY
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Posted: 25 Jan 2011 at 1:30pm |
Hey Doc,
Does the "1/3 of the time" apply to the early D-17s with the by-pass oil filter system as well? I assume you are referring to the later "full-flow" high pressure system D-17s?
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Steve M C/IL
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Posted: 25 Jan 2011 at 1:42pm |
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Pretty sure ALL D17s have fully grooved mains,so they ALL got oiled ALL the time.Doesn't matter oiling system.
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DrAllis
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Posted: 25 Jan 2011 at 2:33pm |
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Correct.......only difference between the oiling systems would then be dirty oil all the time or clean filtered oil all the time (provided the filter isn't bypassing).
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Brian G. NY
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Posted: 25 Jan 2011 at 2:45pm |
Now I'm confused...........we talking mains or rods?
I understand that the main bearings are grooved in the D-17s but
The rod bearings are the same on the WDs thru the 170s, I think.
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DrAllis
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Posted: 25 Jan 2011 at 5:07pm |
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The rod brgs receive oil from the mains. D17-170-175's have grooved main brgs that supply oil all the time during the rotation of the crank. WC-WD-WD45's are not grooved and oil to the rods isn't 100% during crank rotation. That is why they(D17-170-175) can run more RPM and put more torque thru the same rod brg shells and have no problems.
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Dans 7080
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Posted: 25 Jan 2011 at 5:17pm |
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Could you run D17 mains in a WD45 and get the same result?? Oil all the time to the rods??
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DrAllis
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Posted: 25 Jan 2011 at 6:23pm |
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Nope. Mains on the G-226 are 3 inch diameter and mains on the W-226/W-201 are 2 1/2 inch diameter.
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Dans 7080
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Posted: 25 Jan 2011 at 6:32pm |
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Thanks Dr Allis, It was just a quick thought.
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Steve M C/IL
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Posted: 25 Jan 2011 at 11:59pm |
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I wish they made upper halves grooved for the 45's like Chevy V8's.That would help the rod oliing and still carry the load on the bottom. Oh well,they still run for 40 years or so.
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wi50
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Posted: 26 Jan 2011 at 6:58am |
could one grove the berrings in a lathe?
I wonder if the oil pump would be up to task for the additional oiling, or if the pressure would just drop a little, less oil would get filtered. I guess I'll leave them as it, ran this long without troubles so why create them.
Edited by wi50 - 26 Jan 2011 at 6:58am
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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Steve M C/IL
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Posted: 26 Jan 2011 at 8:57am |
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Yeah wi50,that's kinda where I ended up.I converted my 45 to ful-flo with a D17 pump so would have had the oil.I fiddled with an old shell and the die grinder and decided not to screw up my new brgs.Wasn't worth the trouble/expense to take it to the machine shop.I have greater oil pressure now anyway so when it gets a drink,maybe it gets a little more.
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mlpankey
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Posted: 26 Jan 2011 at 9:03am |
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I never had a bearing issue when pulling even when I used the lerio spring with the allis gov weights for a governed rpm of 3000 . I did run race / loose bearing clearances though.
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