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willysmjeeps.com :: View topic - Valve tappet clearance
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Valve tappet clearance

 
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Bretto
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Joined: Nov 24, 2010
Posts: 1390
Location: Orem, UT

PostPosted: Tue Dec 11, 2012 8:57 am    Post subject: Valve tappet clearance Reply with quote

Is it better to adjust the valve tappet at running temp or does it matter?

Also a side observation when looking for specs on the clearance, I found the specs for the MB and 2A show it should be .014. The 3A and M38 manuals show .016. I was always under the impression that the engines were the same.
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'51 M38
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wesk
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Joined: Apr 04, 2005
Posts: 16298
Location: Wisconsin

PostPosted: Tue Dec 11, 2012 9:31 am    Post subject: Reply with quote

14 was the old setting. Willys changed that to .016 right after WWII. Setting valve clearance too tight has always been an issue with folks seeing .014 on the head and in the older manuals.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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Bretto
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Joined: Nov 24, 2010
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Location: Orem, UT

PostPosted: Wed Dec 12, 2012 11:56 am    Post subject: Reply with quote

Who knows the last time mine have been done so I'm going to check and adjust if needed.
Is there a set mileage range that they should be checked?
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Brett
'51 M38
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wesk
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PostPosted: Wed Dec 12, 2012 5:39 pm    Post subject: Reply with quote

TM 9-8012 Page 69 last paragraph on that page.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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