Re: IML: 1947 straight six one valve stuck open.

[randalpark@xxxxxxx]

Back in the days when cars made that way were still popular, there were 
mechanics who would come to your house to work on the valves. I don't 
know enough about flat head engines to say what with conviction what I 
think the problem is, but a stuck valve is a stuck valve.

When the engine was shut off some of the valves are open, some are 
closed. If the car was parked for a long time, the valve stem could be 
rusted due to a water leak. There could be a bad valve spring, or 
possibly a valve seat has broken or come loose and part of it wedged 
into the valve stem. Something may have fallen down the carburetor when 
the engine was running and wedged itself between the valve and valve 
seat, down by the stem. The engine has most of the same parts, except 
that there's no rocker shafts & arms, valve keepers, or push rods (at 
least not in the way that we think of them). I have heard of lifters 
referred to as push rods in flat head engines.

The "viewing windows" (also commonly called valve covers) are mainly 
for in car servicing and adjustments. If I am not mistaken, the engine 
can be run when the covers are off to make valve adjustments. If the 
engine runs, viewing things that way should make something apparent to 
you. If it doesn't run, I would say that you need to fix this before 
you make it run. I am not a scientist, physicist, or a trained 
mechanic. I don't think you are seeing everything that is going on, 
other than that the engine needs work.

Do you have a Factory Shop Manual? Even a general repair manual would 
help you in this case. There is obviously a mechanical failure. Those 
are not hard to spot if you know what to look for. I am sure others 
will chime in on this. Chrysler used essentially that engine design for 
the six cylinder cars until around 1959.

Paul W.

-----Original Message-----
From: a1web@xxxxxxxxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Sat, 10 Feb 2007 2:49 AM
Subject: IML: 1947 straight six one valve stuck open.

On these type of motors they have viewing windows  so you can see the 
valve as they work. I recently had the top of the engine off. At that 
time I clean all of the lifters and any corrosion. I don't understand 
what is keeping one valve compressed . What could be keeping it open. I 
don't see the purpose of pulling the head again I know there is nothing 
on that side that would restrict the valve from opening or what i 
really need is for the valve to uncompressed. I cant even force it open 
is there some kind of trick . With these windows I can see and access 
the valve is there a easy way to get this valve working again
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