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Valve adjustment and tappet wrenches
#1
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Craig Fox
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I will be taking a shot at a valve adjustment on my 1951 with 288ci engine. I have been pricing tappet wrenches and wonder do I need a complete set or just two wrenches of the right size. What is the tappet adjustment size that I need? Any tricks that I should know about the running hot valve adjustment that isn't in the book?

Posted on: 2015/7/12 23:31
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Re: Valve adjustment and tappet wrenches
#2
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Dell
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If remember correctly it takes two 1/2 wrenches to unlock the lifter and a third to adjust it, I would look for two 1/2 by 9/16 and one 7/16 by 1/2. Its lots of fun!! Dell

Posted on: 2015/7/13 18:57

35-1200 touring sedan
42-110 convertible coupe
48-2293 station sedan
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Re: Valve adjustment and tappet wrenches
#3
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Ken_P
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For what it's worth, on my '37 237, it was 9/16. I used one tappet wrench and a conventional wrench.

Posted on: 2015/7/13 20:05
1937 120 1092 - Original survivor for driving and continued preservation.
http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partial restoration, sold Hershey 2015
https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?start=0&topic_id=6550&order=ASC&status=&mode=0
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Re: Valve adjustment and tappet wrenches
#4
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JWL
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My preferred way to adjust the valves on these engines is to warm them up to operating temp and then adjust a cylinder at at time with the engine off. After each cylinder restart the engine and run it for a couple of minutes to restore the operating temp. Adjusting the valves clearances with the engine running is something only attempted by the most brave and accomplished of us.

(o{}o)

Posted on: 2015/7/13 21:44
We move toward
And make happen
What occupies our mind... (W. Scherer)
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Re: Valve adjustment and tappet wrenches
#5
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Craig Fox
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Thanks for all the great ideas. I'll let you know how it works out in a couple of weeks

Posted on: 2015/7/14 12:02
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Re: Valve adjustment and tappet wrenches
#6
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Packard 1948
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What are tappet wrenches?

Posted on: 2015/8/22 17:59
Bill,

Dedicated to keeping the man who owns one on the road!!!
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Re: Valve adjustment and tappet wrenches
#7
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Craig Fox
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I have never seen them in person but they are a long thin wrench that you can fit onto the tappets with the engine running as you sit in the left wheel well. I see them for sale on eBay for $25/40 a set. Very few cars need valve adjustment any more. It is a bit of a lost art. I have never done a side valve motor Should be a challenge.

Posted on: 2015/8/22 18:23
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