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

Duane Larson jdlarson at comcast.net
Fri Dec 24 08:29:55 PST 2004


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
> >> > http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
> >> >
> >> >
> >>
> >>
> >> _______________________________________________
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> >
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> >
> >
>
>
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