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

Frank gremaux at tein.net
Fri Dec 24 08:49:53 PST 2004


Duane:
that's what I was looking for
I have a valve here from my GP standard...........will measure it later
thanks.
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: Friday, December 24, 2004 9:29 AM
Subject: Re: [AJD] can I use the 820 exaust valve in my D?


> Frank,
> Here is the info for both D and 820 valves:
> For the D from Kevin
> The proper head size is 2-3/4 in in Dia.
>                                         Stem is .621
>                                         length   8-3/4 in
>                                   Face angle  30 deg.
> and for the 820:
> 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)
>
> Merry Christmas!
> Duane
>
>
> ----- Original Message ----- 
> From: "Frank" <gremaux at tein.net>
> To: "Antique John Deere mailing list"
> <antique-johndeere at lists.antique-tractor.com>
> Sent: Friday, December 24, 2004 9:50 AM
> Subject: Re: [AJD] can I use the 820 exaust valve in my D?
>
>
>> 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
>> >> > _______________________________________________
>> >> > Antique-johndeere mailing list
>> >> > http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>> >> >
>> >> > _______________________________________________
>> >> > Antique-johndeere mailing list
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>> >> >
>> >> >
>> >>
>> >>
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>>
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