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

[Frank]

guessin I missed it..............oh well don't have either one anyway
well except the D has valve in it and you can buy the whole 
tractor..............it runs well

Frank
gremaux at tein.net
Central Montana
http://www.angelfire.com/mt/deeregp/index.html
----- Original Message ----- 
From: "Duane Larson" <jdlarson at comcast.net>
To: "Antique John Deere mailing list" 
<antique-johndeere at lists.antique-tractor.com>
Sent: Thursday, December 23, 2004 9:47 PM
Subject: Re: [AJD] can I use the 820 exaust valve in my D?


> Frank,
> I believe this question has been answered by Kevin.
> Regards,
> Duane
>
> ----- Original Message ----- 
> From: "Frank" <gremaux at tein.net>
> To: "Antique John Deere mailing list"
> <antique-johndeere at lists.antique-tractor.com>
> Sent: Thursday, December 23, 2004 11:06 PM
> Subject: Re: [AJD] can I use the 820 exaust valve in my D?
>
>
>> ok Duane I'll bite............
>> how does that compare to the D valve?
>>
>> Frank
>> gremaux at tein.net
>> Central Montana
>> http://www.angelfire.com/mt/deeregp/index.html
>> ----- Original Message ----- 
>> From: "Duane Larson" <jdlarson at comcast.net>
>> To: "Antique John Deere mailing list"
>> <antique-johndeere at lists.antique-tractor.com>
>> Sent: Thursday, December 23, 2004 8:39 PM
>> Subject: Re: [AJD] can I use the 820 exaust valve in my D?
>>
>>
>> > Kevin,
>> > The 820 valves have the following properties as given in Field Service
>> > Bulletin 259 (11/56):
>> > property    intake    exhaust
>> > angle        44.5 deg    44.5 deg
>> > length        8.281"        8.250"    to top of face
>> > dia            2.600"        2.070"
>> > stem        0.496 - 0.497"   (both)
>> > Duane Larson
>> >
>> > ----- Original Message ----- 
>> > From: "Kropelin" <kropelin at netonecom.net>
>> > To: <antique-johndeere at lists.antique-tractor.com>
>> > Sent: Thursday, December 23, 2004 7:13 PM
>> > Subject: [AJD] can I use the 820 exaust valve in my D?
>> >
>> >
>> > 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
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>>
>>
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