D17 valve adjustment
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=202276
Printed Date: 12 Sep 2024 at 4:26am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D17 valve adjustment
Posted By: waw1962
Subject: D17 valve adjustment
Date Posted: 15 Jul 2024 at 10:38am
| The shop manual for the D17 series IV states to set valves 1,2,4, and 6 when TDC, then 3,5,7 and 8 at 90 degrees rotation of the crankshaft. Others have stated to set them in firing order, 1,2,4 and 3. Which is correct? Thanks. |
Replies:
Posted By: DrAllis
Date Posted: 15 Jul 2024 at 11:23am
| Either way works. Set ALL at .015" COLD which that book will not tell you. |
Posted By: SteveM C/IL
Date Posted: 16 Jul 2024 at 7:10pm
90 degrees doesn't sound right....you better just do each cyl on TDC
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waw1962 wrote:Posted By: HudCo
Date Posted: 16 Jul 2024 at 11:26pm
| one full rotation of the crankshaft. two full turns on the crank = one full turn of the cam |
Posted By: Allis dave
Date Posted: 17 Jul 2024 at 6:49am
| I haven't done many, but when I set them I just turn it over a few times watching and catch each valve when it's all the way closed. I don't worry about TDC and the firing order. These are pretty easy to do that way becasue duration is so short. They are fully closed most of the time. |
Posted By: nella(Pa)
Date Posted: 17 Jul 2024 at 7:01am
Take out spark plugs! TDC on compression stroke.
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Posted By: Macon Rounds
Date Posted: 17 Jul 2024 at 11:08pm
|
Yep Intake valve closes you are good to check valve clearance on both... ------------- The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate |
Posted By: Jim.ME
Date Posted: 18 Jul 2024 at 9:15am
| 4 cylinder overhead valve with the rocker cover off, it is pretty simple to watch the companion cylinder for the valves to be "on the rock" (exhaust valve closing and intake opening), to be in the correct place to set the valves on its cylinder with both valves closed, ready to fire. 1 and 4 are companions and 2 and 3 are companions. |
Posted By: NEVER green
Date Posted: 18 Jul 2024 at 9:27am
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Racer's set them the EOIC method, do each cylinder one at a time, as soon as the exhaust opens set the intake, as soon as the intake closes set the exhaust. I have used it for years. ------------- 2-8050 1-7080 6080 D-19 modelE & A 7040 R50 |