See http://www.gordon-glasgow.org/Images/4A.gif.
13207-66700/13207-66710 is number 45/46 in the diagram. This is the valve stem
oil seal.
13209-20100/13209-25500 is number 49 in the diagram. This is the valve spring
retainer. The valve springs actually sit up against this part.
Number 50 in the diagram is the valve collet (2 per valve). These are the pieces
that fit into the grooves in the end of the valve stem and keep the valve spring
retainer in place.
Number 47 in the diagram is the rocker guide (also called a lash pad). This sits
on the top of the valve stem and keeps the rocker arm centered on the valve
assembly. There is a recess in the valve spring retainer that keeps the lash pad
in place.
Gordon Glasgow
Renton, WA
> -----Original Message-----
> From: owner-datsun-roadsters@autox.team.net
> [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of lou daly
> Sent: Friday, February 01, 2002 11:41 AM
> To: Roadster; datsun-roadsters@autox.team.net
> Subject: Re: Part number question
>
>
> i'm going to attempt to answer this - but please,
> anybody who knows more about this just jump in
> i know nothing about these engines!
>
> 13207-66700 seal-lip,valve oil
> this looks like a rubber tube that might fit over the
> valve stem
>
> and 13207-66710 seal-lip,valve oil
> (NDK)
> this looks like a washer type thing
> that goes around the valve stem?
> looks like the firts spring mentioned below is
> for holding the rubber?
>
> > 13209-20100 - retainer-valve spring
> i can't figure out its use but it looks like a wire
> spring (picture shows a heart shaped object) fitting
> between the 'collet-valve' and the rocker
>
> and 13209-25500 - retaine-valve spring
> this fits over the rocker itself
> it has two hooks and two loops it should hold the
> rocker rirm to the top of the valve??
>
> not the best descr (but it did make me think a bit)
> lou
>
> --- Roadster <roadster@texoma.net> wrote:
> > I dug up a couple of part numbers for my '70 U20.
> > One for the oil seal and
> > the other for the retainer for the valves. Each
> > item show two p/n's with no
> > explanation as to why.
> >
> > 13207-66700 and 13207-66710 are both listed as valve
> > oil seals.
> > 13209-20100 and 13209-25500 listed as retainers. (I
> > assume this is the item
> > that slides into the the groove at the top of the
> > valve stem?)
> >
> > Can someone with a parts book explain the
> > differences? It would be much
> > appreciated.
> >
> >
> > Best regards,
> >
> > Fred Schroeder
> > Denison, TX
> > SRL311-13359
> > TDROC
> > Reg e-mail sitsinwest@texoma.net
> > Home page http://home.texoma.net/~sitsinwest
> >
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