[928uk] Clutch master cylinder

[Ben Hodges]

Thanks Jon!

On Mon, 20 Jan 2025 at 08:35, <jon928se at gmail.com> wrote:

> I can't see what the difference is between LHD and RHD master cylinders,
> the pressure line to the slave comes out of the end of the master (remote
> from the pedal) on both and the LHD (928 part number, I have two waiting to
> be fitted) has the supply (infamous blue hose) hose connection pointing to
> the front of the car. From memory so does the RHD master supply connection.
>
> The only difference I know of is that the push rod connection to the pedal
> is a ball joint on RHD cars (M8 thread ball joint readily available from
> non Porsche sources John Speake used to sell them) and is a rose joint type
> joint on LHD cars because the master lines up better with the pin (not
> ball) on the pedal. I presume that the rose joint fitting isn’t M8. If this
> assumption isn't correct this isn't a show stopper as you can reuse the
> original pushrod.
>
> The rebuild kit for the slave is a complete bastard to fit (primarily the
> pressure seal) and needs to be warmed up in boiling water to make the seal
> flexible enough to stretch over the piston.
>
> Jon
>
>
>
> -----Original Message-----
> From: 928uk <928uk-bounces at lists.928.org.uk> On Behalf Of Jonathan
> Rackowe via 928uk
> Sent: 20 January 2025 11:04
> To: Ben Hodges <benhodges1975 at gmail.com>
> Cc: Jonathan Rackowe <jonathanrackowe at gmail.com>; Mike Miller <
> auskartdyno at gmail.com>; 928 Org <928uk at lists.928.org.uk>
> Subject: Re: [928uk] Clutch master cylinder
>
> Hi Ben,
>
> Had you already considered new seals?
>
> Why do you need to replace the m/c?
>
> I would consider a sleeved rhd one nearer to stock than a lhd one with
> weird hose routing and lengths.
>
> If you do replace your m/c please sell one of us the old one to
> recondition.
>
> Have you tried Douglas Valley Breakers for a rhd m/c ?
>
> Best regards,
> Jonathan
>
> 1991 928 GT Amethyst Metallic
>
>
> On Sun, 19 Jan 2025, 11:10 pm Ben Hodges via 928uk, <
> 928uk at lists.928.org.uk>
> wrote:
>
> > Thanks Mike
> >
> > I’m converting my auto to a manual so want to keep things stock for
> > now to minimise the variables!
> >
> > Discussing it with a mate earlier he remembered when he put a new one
> > into his GT it came with two rods - one being longer than the other.
> > I’m going to purchase the 928.xx LHD one and swap the rods over if it
> > is a different length.
> >
> > Cheers
> > Ben
> >
> > On Sun, 19 Jan 2025 at 20:50, Mike Miller <auskartdyno at gmail.com> wrote:
> >
> > > I had mine stainless steel sleeved and reduces 1 size in diameter to
> > > give quicker clutch action. Little adjustment on the assist spearing
> > > and pedal effort quite acceptable even for an octanagerian.
> > > Mike Miller Brisbane 82s 5 sod
> > >
> >
>
>