CSL RHD City Pack Brake Booster Housing Colour Confirmation

[Atavistic]

We are assembling the car and a double Google check of the brake booster colour reveals some restored cars with a blue booster housing. A local CSL enthusiast thinks silver and we have already painted most engine parts in what looked like their original black semi-gloss. I went through the three pages of 'brake booster' posts and couldn't find anything on this topic - sorry if I missed.

Does anyone have an authoritative view on the right colour please?

Very best (and HNY all),

David

 

[HB Chris]

I have never seen any color other than semi-gloss black on LHD coupes but I've never seen a RHD one.

 

[Aussiecsi]

I was recently discussing this with another member , Wally Siswadji'; he said the original booster was blue and the 'can' part silver zinc plated. I think many ended up entirely black after being reconditioned at some point . From memory, I believe the blue/zinc finish is what Jaymic use for their remanufactured boosters.

 

[Atavistic]

Thank you Chris and Aussie, I have pinged Pete at Jaymic for a picture/or correct blue colour.

Will post final pictures on the main restoration thread.

 

[Aussiecsi]

David, if you get stuck, I know Wally has a reconditioned set as described above ...can get some pics for your reference if need be . Will ask him for details on blue paint he used which is a good match. Cheers, Simon

 

[BMW Pete]

I am restoring my Taiga RHD CSL and my boosters were exactly as Aussiecsi describes above, when removed.

 

[Atavistic]

A local CSL owner and retired BMW mechanic suggested we try looking for the colour on 2002 sites and I soon came across this which shows what looks like factory original paint and then a restored interpretation

https://www.bmw2002faq.com/forums/topic/156741-brake-help-power-brake-unit/

Unless someone can share or point to an e9 equivalent this looks like a good direction to head

 

[Aussiecsi]

David, the RHD E9's and 2002's shared the same boosters so it would be fair to assume the "Blue" was the same too. I will find out the paint type and post soon. Simon

 

[Aussiecsi]

VHT caliper paint SP732 Bright Blue.

 

[Atavistic]

Many thanks Simon, much appreciated

 

[Marc-M]

I have just taken mine off (RHD) - and when taking off I noticed some blue paint on them under a bracket - mine have never been off, as the car was laid up in the 80s.
They have been exchanged and I have 2 new blue ones.
Regards

marc

 

[Atavistic]

Guys - can you please confirm it is gloss blue paint and not a blue colored electrolytic coating (looks like paint in the supplied pics but we wanted to check)

 

[Bmachine]

It sounds like you have tried it before but a simple Google Images search with "BMW e9 NOS brake booster" or any variation thereof such as "original booster" or "CSL booster" or even "RHD CSL booster" all show 99% of them in black.

I would ask Carl Nelson or Peter Sliskovich to be sure.

 

[Aussiecsi]

It sounds like you have tried it before but a simple Google Images search with "BMW e9 NOS brake booster" or any variation thereof such as "original booster" or "CSL booster" or even "RHD CSL booster" all show 99% of them in black.

I would ask Carl Nelson or Peter Sliskovich to be sure.

Bo, not sure if they would necessarily be "Authorities " as the blue boosters seem to be unique to RHD cars . Both BMW Pete and Marc have already confirmed their original boosters as I described above. It seems that many RHD boosters were prone to failure and may have been painted black when reconditioned . Also, I bought a new booster in the late 1980's from BMW and it was/is black but I suspect by then it was easier to produce that way . Cheers, Simon

 

[Aussiecsi]

The booster by Jaymic (UK restorer)

 

[Bmachine]

Aha. Looks like we are talking about two different things. By "booster" I thought you meant the big vacuum "drum". I didn't realize the RHD system had the extra gizmo you are showing there.

All good. Back to your regularly scheduled discussion.

 

[Atavistic]

A much better Jaymic picture, thanks. Looks like blue paint but if anyone has a different view please shout soon. I will email Jaymic too.
Thanks all

 

[HB Chris]

Aha. Looks like we are talking about two different things. By "booster" I thought you meant the big vacuum "drum". I didn't realize the RHD system had the extra gizmo you are showing there.

All good. Back to your regularly scheduled discussion.

That is the RHD booster/master

 

[Bmachine]

That is the RHD booster/master

Very interesting. Thanks.

 

[Aussiecsi]

That is the RHD booster/master

....I'm no expert Chris , but I believe that the "blue bit " forms part of the Booster unit hydraulics ; there's still a separate Master ....we with RHD cars have so much more that can go wrong !