[AJD] can I use the 820 exaust valve in my D?

[Dee Schuyler]

Well I am getting into this a little late , but I have an old valve I took 
out of a 35 D on my desk here in front of me
and it measures about 2 3/4 dia 8 7/8 long and  0617 dia
now this valve is strictly a paperweight as it is plenty used up! But it 
does not sound to me like your 820 valves will work?
Now in the past I have found a couple fellas that advertise in GM and Two 
Cyl's have had used valves. If not just be thankful you are working on a two 
cyl  it could be a V8??
Dee
----- Original Message ----- 
From: "John D. Swecker" <johnnyd at mountain.net>
To: "Antique John Deere mailing list" 
<antique-johndeere at lists.antique-tractor.com>
Sent: Thursday, December 23, 2004 6:54 PM
Subject: Re: [AJD] can I use the 820 exaust valve in my D?


> Kevin, the stem is about 1/2 in. in diameter, and the overall length is 8 
> 3/8 in. The head is 2-1/2 in diameter. (intake valve)    John D.
>
> Kropelin wrote:
>
>>Not long ago a few posts had talked about being able to use the 820 
>>exhaust
>>valves with a little bit of machine work.
>>
>>
>>
>>As I am rebuilding a 1931 unstyled D and have just removed the head to 
>>clean
>>out the years accumulation of grass,mouse nests,grain storage and wasp 
>>nests
>>I have gotten the valves out and of course they need to be replaced.
>>
>>
>>
>>As you already know they are a little salty, and like most I really do not
>>want to make John Deere Co. rich but I want to do a proper job.
>>
>>
>>
>>My question is does anyone have the physical dimensions of the valve for 
>>the
>>820 as far as diameter of the stem and the head diameter? I will assume 
>>that
>>the length is longer which will allow for the relocating of the keeper 
>>slot!
>>
>>
>>
>>I went over to my local Deere Dealer and all they could tell me was that I
>>can still buy them but they had no tech info.
>>
>>
>>
>>I thought that this was a little funny as they do repair tractors in 
>>house.
>>What I need is the tech specs of both of the valves to make a 
>>determination
>>of which way to go outside of having them order a valve in for me to look 
>>at
>>
>>
>>
>>
>>If the head diameter is the same and the stem diameter is the same and the
>>overall length will allow me to machine a new keeper slot in the proper
>>place, then the 820 valve which is half the cost of the original style 
>>valve
>>would be the way to go.
>>
>>
>>
>>Any advise on this will be greatly appreciated.
>>
>>
>>
>>Kevin Kropelin(krop8913)
>>
>>
>>
>>over here in the cold southwest corner of Michigan
>>_______________________________________________
>>Antique-johndeere mailing list
>>http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>
>>.
>>
>
>
> _______________________________________________
> Antique-johndeere mailing list
> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>