Is this a Bonaldi brake booster and should it be on my '68 MK1 S or should I have a VH44? If it is a Bonaldi, were they only on the Innocenti's?

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Flute - 68 MK I Cooper S
Member: VMCI #2474
Member: International Mini Model Collectors Club

A 68 S should have a Lockheed, IMO. Well, mine did...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

+1
Mine has a 5 1/2 Lockheed servo.

Is that an alloy cylinder? The repros use alloy, not sure about the license bonaldi.

Lockheed 5 1/2 were steel cylinders for sure, and were used up to sometime in 69 prior to the full Mk2 changeover to VH44J boosters.

Does that tag say Bonaldi? Perhaps someone bought it in as a spare part.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

yep my 69 mk2 cooper s had been changed to a PBR vh44 but still had the Lockheed bracket holding it by 1 bolt, full dodgey bro. I have sourced a Lockheed booster to put back in.

Flute I'm eyeing off your nose clamp as mine is missing and I'm still trying to find an original not a repo.

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"Investing my Super in a Cooper" &
"Re-living my Surfing Past in a Woody"

Okay, thanks Aussie Brian, sounds like I might have original brackets then for a Lockheed? Still need to find a Lockheed then. There is one on eBay ATM but is that the way to go? I might give hydroboost a call to see what the go is. I read previous threads on this subject and it sounds like they are getting harder to get. One thread said to use a reproduction by Bendix from mini mania but they are $800+!! Mick, the sticker is one that says ABS and someone has impressed Bonaldi into the metal of the sticker. Either way it sounds like it will have to go if I am going to make my car more original. Not sure if hydroboost would put it towards a change over if they have any.

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Flute - 68 MK I Cooper S
Member: VMCI #2474
Member: International Mini Model Collectors Club

Is the front body definitely aluminum or painted?

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

Looks like a Bonaldi to me, same as used in early Alfas 70's vintage (105's etc)

I did read they were used in Alfas so you are probably right. Maybe they just figured it is right for the job when the original needed replacing. Mick, I looked again and it is alloy, not paint. Here is a pick and of the sticker too. The shiny cylinder underneath is just an air horn compressor (which will have to go too!)





I guess this plastic reservoir is wrong too!

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Flute - 68 MK I Cooper S
Member: VMCI #2474
Member: International Mini Model Collectors Club

Its hard to tell ..but is the brake cylinder may be 'suss' as well???

Cheers, Ian

Yes it looks like a Bonaldi ,with the Alloy cylinder ,they are different size internally, not really suitable for a mini.
Quite often seen though on Mk1 S as original equipment is the Bonaldi booster with the Lockheed steel cylinder....

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1965 Morris 850
1966 Morris Mini Minor
1967 Morris Cooper 'S'
1977 Leyland LS

The clutch master cyl looks like it has a plastic cover clamped around the outside. Not original and very ugly.
Aftermarket type like this one
http://www.ebay.co.uk/itm/GENUINE-GMC10 ... 56427dbb1d

should be this one i think,from a 68 s all dissassembled,steel body,


will be in for sale as sold the car years ago with some other mk1 s bits

I remember those back plates and cover!

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

big thanks to mick for stripping this one down for me all those years ago
just found it in a box tonight,forgot i still had it
cheers josh