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

[Mark Battesby <a1web@xxxxxxxxxxxxx>]

Thanks Paul yes the car does run and you can view the valves with it running. I guess Ill have to take the top of the moter off again . I was hoping there was another reason why the valve is open  it does drop down every so often i guess there must be something in the way that is blocking it. I guess thats what i will do 

randalpark@xxxxxxx wrote:
> 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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