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Tappet size |
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blauvelt 
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Joined: 24 Mar. 2021 Location: TEXAS! Status: Offline Points: 4 |
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 Topic: Tappet sizePosted: 08 Jan. 2022 at 3:47pm |
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Afternoon,
Tearing down my 2A engine, pulled the tappets and was mic'ing each one to see if I should get them faced or buy new ones. Getting readings (measured at 3 points on each) in the 0.6238 to 0.6245, does anyone know what the tappet OD should be? Is there a suggested clearance for the tappet to the block? Thanks, Doug
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Oldpappy
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Joined: 09 Apr. 2018 Location: Tennessee Status: Offline Points: 4906 |
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Posted: 08 Jan. 2022 at 4:13pm |
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I don't know the OD, but don't think it matters much if they are in good enough shape to have them faced. A little too loose is better than too tight.
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If you can't get there in a Jeep you don't need to be there!
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Lee MN
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Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4950 |
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Posted: 08 Jan. 2022 at 6:07pm |
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The spec is in the back of the universal manual, do not remember what it is.
Leeđ |
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LEE
44 GPW-The Perfected Willys 49 2A âIf you wait, you only get olderâ 67 M715 American Made Rolling History |
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Bruce W
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Joined: 29 July 2005 Location: Northeast Colorado Status: Offline Points: 9651 |
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Posted: 08 Jan. 2022 at 6:30pm |
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You DO have a service manual, donât you?
BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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blauvelt
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Joined: 24 Mar. 2021 Location: TEXAS! Status: Offline Points: 4 |
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Posted: 08 Jan. 2022 at 6:57pm |
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yes, and keep seeing conflicting thoughts. With the passing of time, are we still saying those numbers are the path?
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Bruce W
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Joined: 29 July 2005 Location: Northeast Colorado Status: Offline Points: 9651 |
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Posted: 08 Jan. 2022 at 8:19pm |
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Just curious, where are we finding these âconflicting thoughtsâ? My Chiltonâs and Motorâs books give the same specs as the Service Manual for Jeep Universal Vehicles. Why would they change?
According to the service manual you have some (or all) that are worn (.6238) to below the limit (.6240). They should be replaced. Clearance should be .0005â to .002â. The block is likely to be worn as well, new tappets will help you hold the clearance as close to spec as possible. You asked for specs, those are the ones I would use. BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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blauvelt
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Posted: 08 Jan. 2022 at 8:46pm |
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Thank you! Going to get my down hole gauges out and measure each bore tomorrow.
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Bruce W wrote: