[T3] Mechanical Fuel pump kit

[Joe Plowick III]

By what I saw, it would appear that the Brosol is a clone of the Pierburg
pumps.  I've seen some rebuild kits but they didn't look like what I saw in
the pump, but I could be wrong.  Although with some of the prices I was
seeing, it would probably be cheaper to get my aftermarket electric pump
working.  I just didn't want the hassle of the additional wiring for it.

On Thu, Dec 14, 2023 at 12:46 PM Brion Sabbatino <brionsab at msn.com> wrote:

> I did a quick Google search. Rebuild kits came up. One must be correct for
> your pump. Post on the Samba. Someone must have the way forward.
>
> Beion S
>
>
> ________________________________
> From: type3-vwtype3.org <type3-vwtype3.org-bounces at lists.vwtype3.org> on
> behalf of Joe Plowick III <gtixpress at gmail.com>
> Sent: Thursday, December 14, 2023 11:42:47 AM
> To: type3 at vwtype3.org <type3 at vwtype3.org>
> Subject: Re: [T3] Mechanical Fuel pump kit
>
> The issue appears to be the diaphragm getting stiff.  The pump had worked
> beautifully before, but then I hadn't ran the engine for a few months.
> When I tried it again, it wasn't pumping fuel.  I removed the top cover and
> the diaphragm wasn't very flexible.  I sprayed everything out with carb
> cleaner and flexed the diaphragm which freed it up. After that, it started
> working again.  The rest of the pump inside looked brand new.  I just
> haven't come across a replacement that matches.  I have a Pierburg pump as
> well that didn't work for me last time I tried, and probably needs a
> rebuild as well.  I may have to dig that one out and see if it's got a
> different design and better parts availability.
>
> Joe P.
>
>
> On Thu, Dec 14, 2023 at 12:03 PM Jim Adney <jadney at vwtype3.org> wrote:
>
> > On 14 Dec 2023 at 9:16, Joe Plowick III wrote:
> >
> > > I have a T3 mechanical fuel pump that I would like to get a new
> diaphragm
> > > for.  It's a Brosol pump with a 4 screw top cover.  Do they make kits
> for
> > > these?  The pump is in good shape and works, but the diaphragm is
> > starting
> > > to stiffen up after sitting and won't push fuel any more.  Taking it
> > apart
> > > and moving it a little usually gets it working again.
> > >
> > > https://ibb.co/8cZsTnz
> >
> > It's possible that the problem is not with the diaphram, but with the
> > check
> > valves. Clean any dried gas residue off them, or they can stick and not
> > work.
> >
> > I don't know much about the mechanical fuel pumps, but, in general, old
> > rubber parts that were in contact with gasoline for a long time tend to
> > get
> > quite stiff if they are allowed to dry out. The first thing I would try
> > would be to
> > let the diaphram soak in gasoline for a few days, to see if that helps.
> >
> > If that works, reassemble the pump with some grease on the non-gasoline
> > side, to help keep some petroleum oil in contact with that side of the
> > rubber.
> >
> > I don't recommend just flexing the rubber to soften it up; that's more
> > likely to
> > break it.
> >
> > I don't know if a kit for a different maker would fit. And those kits are
> > getting
> > scarce. You might have to resort to buying a new pump.
> >
> > I have some silicone diaphram material if you'd like to try making your
> > own.
> > This came from Russ, years ago, and should be quite good, but you'd have
> > to cut and punch it to shape, and do the rivet in the center.
> >
> > --
> > *******************************
> > Jim Adney, jadney at vwtype3.org
> > Madison, Wisconsin, USA
> > *******************************
> >
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