03/89 RHD Brake Master Cylinder

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bm635csi
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03/89 RHD Brake Master Cylinder

Post by bm635csi »

Hi Folks

03/89 635csi type code 5382

Searching for brake master cylinder and I only get for LHD

34311155270

From Realoem I get for RHD

34312225257

USA suppliers will not answer any RHD queries.

Can RHD use ..270 . What do RHD members use.

Rgds
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///bm635csi
1989 E24 635CSi Highline
2003 E46 M3 SMG
2002 L322 Range Rover Vogue
1991 E34 535is
bpoliakoff
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Re: 03/89 RHD Brake Master Cylinder

Post by bpoliakoff »

If push comes to shove, White Post Restorations can rebuild it. They rebore the cylinder and then line it with a stainless steel liner and replace all of the mechanicals with new parts
81 Euro 635 M90 with motronic. Currently under a complete nut and bolt restoration. Pictures at
flickr.com/photos/bertsphotos.
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bm635csi
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Re: 03/89 RHD Brake Master Cylinder

Post by bm635csi »

Yes last resort.. but are these two interchangeable. The brake pipe seems to be in the correct side for RHD n LHD. Just can't find the RHD Part anywhere.
///bm635csi
1989 E24 635CSi Highline
2003 E46 M3 SMG
2002 L322 Range Rover Vogue
1991 E34 535is
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bm635csi
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Re: 03/89 RHD Brake Master Cylinder

Post by bm635csi »

Ok found the answer , definitely need ..257 . bummer !


Looks like length 2 is longer for RHD 179.5mm LHD = 166.4mm
RHD-MC.jpg
RHD-MC.jpg (189.07 KiB) Viewed 373 times
LHD-MC.jpg
LHD-MC.jpg (190.92 KiB) Viewed 373 times
///bm635csi
1989 E24 635CSi Highline
2003 E46 M3 SMG
2002 L322 Range Rover Vogue
1991 E34 535is
daz635
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Re: 03/89 RHD Brake Master Cylinder

Post by daz635 »

Wallothnesch will be your best bet. As you have said you cannot use the LHD unit as the lines enter in a different position
https://www.wallothnesch.com/en/brake-m ... 18-01.html
'86 Euro 635 #1887204 Schwartz (086) Buffalo Schwartz Interior
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Re: 03/89 RHD Brake Master Cylinder

Post by jps635 »

If you're considering upgrading your brakes the 750 MC is a direct fit and about half the cost. (I have in my '85)
https://www.pelicanparts.com/More_Info/ ... M4&SVSVSI=

Others have used this on their standard setup, same for E30 folk. viewtopic.php?t=30836
'85 635csi JPS (RA2-66)
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bm635csi
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Re: 03/89 RHD Brake Master Cylinder

Post by bm635csi »

jps635 wrote: Fri Dec 02, 2022 6:35 pm If you're considering upgrading your brakes the 750 MC is a direct fit and about half the cost. (I have in my '85)
https://www.pelicanparts.com/More_Info/ ... M4&SVSVSI=
...
Thanks jps635 , just back from holiday and I will get them i.e 750 MC . Just looking at the spec I get this length below. Do you think the brake line that connect to port 1 and port 2 will match seeing its is shorter. Did you have to run a new brake pipe or modify to fit to the 750 MC 010210/4311156643? .
  • Number of connectors 2
    Thread Size M10x1
    Length 1 18.5 mm
    Length 2 163.5 mm
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///bm635csi
1989 E24 635CSi Highline
2003 E46 M3 SMG
2002 L322 Range Rover Vogue
1991 E34 535is
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bm635csi
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Re: 03/89 RHD Brake Master Cylinder

Post by bm635csi »

daz635 wrote: Wed Nov 30, 2022 3:11 am Wallothnesch will be your best bet. As you have said you cannot use the LHD unit as the lines enter in a different position
https://www.wallothnesch.com/en/brake-m ... 18-01.html
Thanks daz635, good to know this classic part site.
///bm635csi
1989 E24 635CSi Highline
2003 E46 M3 SMG
2002 L322 Range Rover Vogue
1991 E34 535is
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