Valve clearance
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=195668
Printed Date: 04 Sep 2025 at 5:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Valve clearance
Posted By: AC720Man
Subject: Valve clearance
Date Posted: 13 Jun 2023 at 10:30am
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Looking for cold clearance for the valves on my D17 diesel. My owners and service manual only gives hot clearance which is .010” intake, .019” exhaust. I have the fuel tank off preparing to paint so I can’t run it now. But I would like to check the valves now if I can find cold clearance value. Thanks Robbie ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |
Replies:
Posted By: Alvin M
Date Posted: 13 Jun 2023 at 10:47am
| Cold .017 intake Cold .022 exhaust |
Posted By: AC720Man
Date Posted: 13 Jun 2023 at 11:30am
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Thank you ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |
Posted By: SteveM C/IL
Date Posted: 13 Jun 2023 at 12:51pm
| I buy the 19 VS 22 but the 10 VS 17 seems excessive. Typical hot VS cold seems to run .003 looser. Maybe this engine is unique? |
Posted By: Alvin M
Date Posted: 13 Jun 2023 at 4:01pm
| Hot is .015 intake .020 exhaust |
Posted By: AC720Man
Date Posted: 13 Jun 2023 at 5:34pm
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Both of my manuals say .010” intake .019” exhaust, hot. ????? ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |
Posted By: Ed (Ont)
Date Posted: 14 Jun 2023 at 7:04am
Difference between cold and hot setting is usually .002. Allow 2 thou more for cold setting.
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Posted By: Ed (Ont)
Date Posted: 14 Jun 2023 at 7:09am
| Cold is usually a better way to do it. More accurate. If you are trying to do hot first one is hot, next couple are less hot. Last one may be cool depending how fast you are.I am not very fast in my old age but am exact! LOL. |
Posted By: AC720Man
Date Posted: 14 Jun 2023 at 4:40pm
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I will agree with that, verified with a few others and their manuals say .010 and .019 also. So .012 and .021 is what I will use. ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |