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valve guide replacement
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tractorboy View Drop Down
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Joined: 03 Oct 2009
Location: southern Va
Points: 474 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tractorboy Quote  Post ReplyReply Direct Link To This Post Topic: valve guide replacement
    Posted: 05 Mar 2023 at 11:58am
On my son's d-10 rebuild I just disassembled the head. Valve springs must have been weak cause I found a washer under each spring. Also had valve seals on the guides & the shop manual doesn't show them. I've hand lapped valves before but never replaced valve guides. The manual says you can drive them out with a heavy hammerShocked . Anyone done this?? I appreciate any advice, thanks keith so. va.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21751 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 2023 at 6:04pm
Using a valve guide removal/installer tool you can remove them with a 3 lb hammer, but to install you need a small hydraulic press to install them with the same tool.
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nickia View Drop Down
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Joined: 11 Sep 2009
Location: alden iowa
Points: 791 		Post Options Post Options   Thanks (0) Thanks(0)   Quote nickia Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 2023 at 6:17pm
use a air hammer to remove them  press in the new ones may need to use a reamer if you bugger the top side putting them in
 
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tractorboy View Drop Down
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Joined: 03 Oct 2009
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Points: 474 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tractorboy Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 2023 at 6:22pm
Ok thanks , what about the valve stem seals , they are not correct right?  I figured someone was trying to stop oil consumption. thanks keith so. va.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21751 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 2023 at 6:38pm
No valve guide seals, correct.
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PaulB View Drop Down
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Joined: 12 Sep 2009
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Points: 5049 		Post Options Post Options   Thanks (1) Thanks(1)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 06 Mar 2023 at 6:09am
Many machine shops will automatically install valve guide seals, just because they do on all the automotive heads. These older Allis engine don't really like valve stem seals and often valves will get sticky if you use them. Early on Allis had what was call a Splash shield  between the springs and rocker arms. 
  I will sometimes use them on the intake valves only if the guides have worn a little as a quick fix.  
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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