WD45 & D17 dyno
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=17708
Printed Date: 06 Feb 2025 at 6:06am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD45 & D17 dyno
Posted By: bigfish_Oh
Subject: WD45 & D17 dyno
Date Posted: 04 Sep 2010 at 6:32pm
We had our local show, the '45 holds a consistent 45 on the dyno and the 17 was at 50. It has the early zenith carb, maybe it is holding it back a bit or is this normal? I do not know if has been overhauled.
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1941 WC sat for 29 years,started & dynoed 27 h.p.
1957 WD45 Grandpa bought new,factory p.s.,added wfe
1951 WD, factory p.s.
1960 D14 HnMk IV BkHoe 4 sale
2014 HD Tri Glide
2009 GMC CC SLT Dually
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Replies:
Posted By: RickM(MO)
Date Posted: 04 Sep 2010 at 10:59pm
My 1954 WD45 with 4.125 overbore pulled 48+ HP on the dyno at the GOTO in Portland in 2008. It has MS 464 carb.
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Missouri Allis Chalmers Club Member; 1954 WD45 (NF), 611LTD & 811GT Lawn Tractors
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Posted By: Burgie
Date Posted: 05 Sep 2010 at 5:34am
I prefer the M/S 464 carb.
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"Burgie"
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Posted By: Steve in NJ
Date Posted: 05 Sep 2010 at 7:07am
The 464, 561, 773, & 871 family of carbs work quite well on a 45' motor and larger bored WC motors that have a little bit of work done. Slide in one of Barney's custom Cams, and one of my custom E.I. Distributor's, and not a lot of money is spent which makes for a nice running combo...
Steve@B&B
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Posted By: Lester
Date Posted: 05 Sep 2010 at 8:52am
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Most WD-45s that I have with a overbore always put out 49 to 51hp. Maybe the new overbores have less compress or it doesnt have the carb kit on it. Years ago when I worked at Sealedpower , we made the overbore kits for ACS and others and they were shipped with bigger jets and vent.
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Posted By: bigfish_Oh
Date Posted: 05 Sep 2010 at 6:28pm
I believe the 45 was overbored in 1978. It showed 47 in early 90's(same dyno). This is a different carb, still 464. It is electronic, msd coil.
I could ream jets a couple thou and try again tomorrow, if it is worth the effort ??!!
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1941 WC sat for 29 years,started & dynoed 27 h.p.
1957 WD45 Grandpa bought new,factory p.s.,added wfe
1951 WD, factory p.s.
1960 D14 HnMk IV BkHoe 4 sale
2014 HD Tri Glide
2009 GMC CC SLT Dually
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Posted By: Lester
Date Posted: 05 Sep 2010 at 7:46pm
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Are you sure your carb is completely open under full load ? And is your tractor running at least 1720 with no load?
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Posted By: bigfish_Oh
Date Posted: 05 Sep 2010 at 7:52pm
you can probably tell me quicker than I can look it up. the d17 should be xxxx at no load and the 45 xxxx at no load ? I can check that in the morning.
thanks
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1941 WC sat for 29 years,started & dynoed 27 h.p.
1957 WD45 Grandpa bought new,factory p.s.,added wfe
1951 WD, factory p.s.
1960 D14 HnMk IV BkHoe 4 sale
2014 HD Tri Glide
2009 GMC CC SLT Dually
|
Posted By: Lonn
Date Posted: 05 Sep 2010 at 8:57pm
The 17 should run at 1950 to 2000 rpm no load high idle. Make sure the carb is syncronized to the gov.
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-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink
I am a Russian Bot
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Posted By: BennyLumpkin
Date Posted: 06 Sep 2010 at 6:46am
how do you sync your carb to your dyno? I have heard of this before but have no idea how to do it, or make sure mine is....I just bolted the carb off my 45 on my WC and it seems great....and its a completely different carb than what was on it.
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Central PA Allis Express
1934 WC254
1945 WF
1945 WC135755
1951 WD68085
1953 WD45-150217
1957 WD45D-230744D
B110
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Posted By: Lonn
Date Posted: 06 Sep 2010 at 8:14am
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Not to the dyno but to the governor on the tractor. Of course you do this with the tractor NOT running. Disconnect the link from the carb to the gov arm at the arm. Put the throttle lever on the quadrant to the full speed position. Hold the throttle on the carb to wide open position. The link that you disconnected should be either a slip fit or up to 1/16" too long to fit in the gov arm. To change it you need to bend the arm with a special tool. If you try bending it with a prybar you might hurt the governor internals.
The tool can be made by finding a short pipe, maybe 1" black pipe, has to fit over the gov arm with some room and maybe 4 or 5 inches long. Weld a washer at each end that just slides over the arm. Cut a hole in the middle of the pipe so a 1/2" or 5/8" bolt will fit through the hole. Weld the corresponding nut over the hole. Now you have the tool. Slip it over the arm and depending on which way you want to bend the arm place it so the bolt is to the front or rear and turn the bolt in to bend the arm. The longer you make the pipe the better as long as it's not longer than the gov arm. The governor can be on the doggy side if it's not in sync. Good luck.
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-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink
I am a Russian Bot
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Posted By: farmer_rob
Date Posted: 06 Sep 2010 at 8:21am
wow great idea for the tool.. most likely never find that at the local napa store.
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if farming was easy everybody would be doing it
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Posted By: BennyLumpkin
Date Posted: 06 Sep 2010 at 9:56am
Thats what I meant Lonn....2 thoughts came out in one sentence haha....Thanks for the info....I'll check that out.
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Central PA Allis Express
1934 WC254
1945 WF
1945 WC135755
1951 WD68085
1953 WD45-150217
1957 WD45D-230744D
B110
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Posted By: Lester
Date Posted: 06 Sep 2010 at 2:57pm
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My 1959 was overbored in the 70's with M&Ws and in the late 80;s I put a 175 cam and D-19 carb Got 65hp on one dyno and the other dyno said 69hp. and ofcoarse the operator has to calculate because of a 548 pto and not a 540. I spun a center main and had to get her linedbored and after that we had to file the back side of the cam and crank gear because they were closer. Who knows what the compression is now. This was all done before I got the exta hp.
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Posted By: bigfish_Oh
Date Posted: 06 Sep 2010 at 4:34pm
"Disconnect the link from the carb to the gov arm at the arm."
IMPORTANT, if you try to "tweak" without this step and "opps" you will break the end off your throttle shaft and will ruin your whole weekend when no parts or welder are available to repair to play with the tractor in the field and pull.
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1941 WC sat for 29 years,started & dynoed 27 h.p.
1957 WD45 Grandpa bought new,factory p.s.,added wfe
1951 WD, factory p.s.
1960 D14 HnMk IV BkHoe 4 sale
2014 HD Tri Glide
2009 GMC CC SLT Dually
|
Posted By: firebrick43
Date Posted: 06 Sep 2010 at 5:42pm
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Two large crescent wrenches work well to adjust the governor arm. Have a helper hold the governor side while you bend the other side.
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