[AT] Was Misc Now valves - a new idea?

Grant Weir grantweird at hotmail.com
Wed Mar 10 18:04:54 PST 2004


Spencer (and all),

I think wedging the valves up from below would just mushroom the ends of the 
stems and wedge them in even tighter.  Sometimes when you pound on the end 
of a shaft in any way, the shaft will "grow" a few thou in diameter even 
farther down the stem than you think.  Just about 2 cents worth of thought 
there... :-)

I know this is going to sound like a lot of work but...  how bout this for 
an idea:  (keep in mid that he DID say that these valves were REALLY stuck.)

   First, with a little cut-off wheel like a Zip-Cut, saw off the end of the 
stem as far up as you can.  Now, with a drill bit that is larger than the 
stem of the valve, drill right through the head of the valve (in the 
center!) until it drills right off.  Now you can pound the stem down from 
above where you can get at it with a hammer or press.  Also, you can soak is 
better with Loosen-All or whatever.  When pounding it down, the stem will 
come down loser to the tappet, so just Zip-Cut some more off.  Of course, 
this is assuming you have enough room to get at the stem with the cut-off 
wheel, but then hey... it's just an idea.

   Also, if things get really desperate, I think farmers joke (it WAS a joke 
wasn't it? :-) about torching out the camshaft might be worth a second 
thought.  I'll bet a camshaft is easier to find used than a whole engine 
block.

   Wow.  That was a very good antique tractor question!

Grant Weir
Saskatoon, SK.
Canada


>From: "Spencer Yost" <Spencer.Yost at piedmontsystems.com>
>Reply-To: Antique tractor email discussion group 
><at at lists.antique-tractor.com>
>To: at at lists.antique-tractor.com
>Subject: [AT] Was Misc Now valves
>Date: Wed, 10 Mar 2004 15:39:15 -0500
>
>Consensus seems to be:  Heat first, electrolysis next.  Thanks for all the 
>help, but guess what?
>
>Went home today for lunch and perform the semi-daily valve train penetrant 
>soaking.   As usual, I tried one of the valves with a wedge just for fun.  
>It gave!  I am not sure why 4 days of soaking in penetrant works better 
>than 3, but it does.  Or maybe, sometimes it just helps to talk about it 
>(-;
>
>Out of the 8 valves, two came out right away last weekend(the two open 
>valves), 4 budged today at lunch - at least enough to get a puller/splitter 
>under the valve head.  Two are still stuck tight (cylinder 4).  Of the two 
>remaining valves, one of the tappet adjusting bolts was not turing - it was 
>stuck too but I did get that broke lose at lunch.  Because that was stuck I 
>couldn;t get a wedge between the valve stem and tappet adjusting bolt.
>
>If the last two valves don't give tonight or tomorrow after 5 full days of 
>thrice daily soaking, I will try heat as suggested.  The heat I never 
>really thought about but I will try.  I just always assumed the stem would 
>heat and expand faster than the guide and just wedge it in tighter.
>
>I hope I don't have to resort to electrolysis.   Thanks again for everyone 
>help, I sure do appreciate it.
>
>Spencer
>
>
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