d17 gov. spring
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=74779
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Topic: d17 gov. spring
Posted By: XT in pa
Subject: d17 gov. spring
Date Posted: 07 Aug 2013 at 3:17pm
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i need a tighter spring to be able to run over 2000 rpm any ideas i looked up 175 gas spring and it says 1800 rpm from agco parts book Shawn ------------- 190XT,D17and 7045 |
Replies:
Posted By: firephight
Date Posted: 07 Aug 2013 at 4:07pm
| Does the cover on your govenor have a allen style srew through the top with a jam nut on it? If so that limits how far the spring can be streched witch limits the govenor.you can also bend thevertical rod on the carb side but only bend it a little that is what I did with my wd45 |
Posted By: Kip-Utah
Date Posted: 07 Aug 2013 at 6:06pm
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I assume we are talking about a 201 or 226 in a WC, WD, or WD45. If so a D17 spring will get you somewhere around 2100 RPM. A 175 spring is going to be 200-250 RPM less. ------------- HANSEN'S OLD ORANGE IRON. Showing, Pulling, & Going!! |
Posted By: BennyLumpkin
Date Posted: 07 Aug 2013 at 6:28pm
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DrAllis has covered it 1000 times...D17 spring is 2050 rpm roughly. Bending the gov rod out of spec just makes your governor not work right. Adjust it properly for maximum rpm and governor response. ------------- Central PA Allis Express 1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110 |
Posted By: XT in pa
Date Posted: 08 Aug 2013 at 10:10am
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Well thanks to all. I won't bend the rod. That's not how it was factory. It's a 17 motor in a 17. Last night the most I got was 1800 that's it. Allen screw is up all the way. I didn't kno if there was any other springs that people have used and worked. Shawn. ------------- 190XT,D17and 7045 |
Posted By: BennyLumpkin
Date Posted: 08 Aug 2013 at 10:34am
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With the engine off, pull the hand throttle wide open. The rod to the carb from the governor should have the carb wide open. Pull the cotter key from the governor end...it should slide in and out or even be an 1/8" long to ensure it opens the carb the whole way...if its too far out then bend the rod (carb to governor not the governor arm) until desired length is achieved. 2050 rpm is with a D17 spring and WC or WD gov weights....I think for more rpm in a D17 you need different weights but I could be wrong.....would the good Doctor care to chime in? lol ------------- Central PA Allis Express 1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110 |
Posted By: BennyLumpkin
Date Posted: 08 Aug 2013 at 10:34am
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XT, where in PA? ------------- Central PA Allis Express 1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110 |
Posted By: XT in pa
Date Posted: 08 Aug 2013 at 11:22am
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40 min south west of pittsburgh i go to farm show with my 17 if you ever been there ------------- 190XT,D17and 7045 |
Posted By: DrAllis
Date Posted: 08 Aug 2013 at 1:05pm
| I prefer the carb link rod to be 1/16" to 1/8" too SHORT. The last few of degrees of throttle shaft rotation yields zero HP, and makes the governor snappier. |
Posted By: BennyLumpkin
Date Posted: 08 Aug 2013 at 8:03pm
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That's what I meant doc....sorry lol. XT I've been down once to pull the Keystone Nationals but haven't made the Farm Show pulls yet. I'm right where PSU is so I'm not too far away. ------------- Central PA Allis Express 1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110 |
Posted By: XT in pa
Date Posted: 08 Aug 2013 at 8:06pm
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Like state collage area. ------------- 190XT,D17and 7045 |
Posted By: BennyLumpkin
Date Posted: 09 Aug 2013 at 7:15am
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Yeah I'm in a town just outside there. We have a good pull coming up in 2 weeks at the Centre County Grange fair....look it up. The fair gate is litterally 50 yards from my house lol ------------- Central PA Allis Express 1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110 |
Posted By: XT in pa
Date Posted: 09 Aug 2013 at 8:04am
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you ever pull around somerset pa ? ------------- 190XT,D17and 7045 |
Posted By: wi50
Date Posted: 09 Aug 2013 at 9:49am
I never really thought of makeing it to short, but it makes perfect sense. When I flow test these single barrel updraft carbuerators on my Superflow, they are done gaining any flow when the throttle blade is about 90% open, that's just a guess and it varys some carb to carb.
What helps is to bend the choke stop just a little so the choke blade is tipped just a few, 3 to 4 degrees up. It offers a little lift to the incomeing air charge and helps direct it up at the venturi. The carbs alwayse gain a few CFM of airflow when I do this. Removeing the choke plate and shaft seldom if never help.
I won't and don't need to get into what's happening in the cylinder, vs what's going on in the manifold and carbuerator here, or all the other carbuerator modifications with custom parts, machining and epoxy work that really make them move some air but take Docs advice, it makes perfect sense and I've done and seen the "science" to back it up. ------------- "see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet" |
DrAllis wrote:Posted By: firephight
Date Posted: 09 Aug 2013 at 10:23am
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Posted By: XT in pa
Date Posted: 09 Aug 2013 at 10:54am
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I see what you ment now. I'm sorry for misunderstand you. ------------- 190XT,D17and 7045 |
Posted By: mgburchard
Date Posted: 09 Aug 2013 at 1:39pm
| before jt richardson died he was selling a spring good for 2650 rpms mlpankey now sells a spring that give 3000 rpms its a 100 dollars. 25 more than a 175 spring it is no secret what his spring is he posted on here several times |
Posted By: Charlie175
Date Posted: 09 Aug 2013 at 1:44pm
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Use safety wire to wire a turn or two together on the spring, that way the spring can't stretch as far.....or so I have been told. Haven't tried it, I'm skeert! ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
Posted By: XT in pa
Date Posted: 09 Aug 2013 at 2:47pm
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i dont want to spend that much on a spring that i can only use for two pulls a year. but thanks anyway. ill see if its adjusted like Benny and the Dr. said. and ill go from there. thanks guys Shawn ------------- 190XT,D17and 7045 |