wd45 throttle
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=16510
Printed Date: 05 Feb 2025 at 7:55am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: wd45 throttle
Posted By: Jeff(WC)(MI)
Subject: wd45 throttle
Date Posted: 13 Aug 2010 at 9:59am
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i finally got the 45 motor together and in the tractor...all buttoned up and running....runs beautiful and oil pressure is perfect.....before i took it apart....my throttle lever worked good...had tension and held where i put it...now since reassembly..if i bump the throttle just off of idle it snaps to higher throttle..not full throttle but probably mid throttle...the engine doesn't race..it's responsive to throttle movement and will idle right down...i took pictures before disassembly and everything is back the way it was...anyone have any clues?
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Replies:
Posted By: Ken McGregor
Date Posted: 13 Aug 2010 at 10:08am
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Check your governors! It doesn't sound like a complete meltdown but it may be the start of one
Ken McGregor
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Posted By: mlpankey
Date Posted: 13 Aug 2010 at 10:14am
linkage from the carb to the cross arm is out of adjustment.
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Posted By: Steve M C/IL
Date Posted: 13 Aug 2010 at 11:32pm
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Did you get the throttle return spring out of place during all this? The linkage is totlally different between P/S tractors and standard but they both use one to work against governor.Without it,it will go to full throttle on it's own just off idle.
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Posted By: Jeff(WC)(MI)
Date Posted: 14 Aug 2010 at 7:04am
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it's a standard tractor with char-lynn PS....i plowed with it last night..everything works ok in the gov, but the linkages must be out of adjustment...just acts funny once in a while..hard to describe....i will really have to look hard at it this afternoon....i put new linkages in off of a different tractor since mine on the right side attatched to the bell crank were almost worn through at the governor arm and at the throttle half moon under the steering arm....i replaced them and measured the old ones and adjusted the new ones to match...i made sure to hook everything including the spring up the way it was before disassembly....i took pictures to reference
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Posted By: Jim in SE ND
Date Posted: 17 Aug 2010 at 8:37pm
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did you put the spring back on under the gas tank that hold the linkage, just worked on mine and acked as you describe until I replaced that spring.
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Posted By: Jeff(WC)(MI)
Date Posted: 17 Aug 2010 at 9:00pm
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the big spring that pulls the bellcrank to the higher throttle position against the governor? yep thats on
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Posted By: Steve M C/IL
Date Posted: 17 Aug 2010 at 11:13pm
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In light of that,ML probably has the best answer.
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Posted By: Lonn
Date Posted: 18 Aug 2010 at 5:59am
Check to see if the link from carb to governor cross arm isn't rubbing against the block. Are you sure the spring under the gas tank is connected right? The adjustment for syncronizing the carb to governor is to make sure the link from carb to cross arm is about 0" to 1/16" too long when the throttle lever is wide open and the carb throttle butterfly is held wide open. To adjust you have to bend the governor cross arm. Supposed to use a special tool for that or you could hurt the internals of the governor. Easy to make one.
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