• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

A/H 3000 braking system

bava

Freshman Member
Country flag
Offline
G'day A/H owners
a while ago I asked advice on brakes, more questions!
I have a set of Jaguar 3 spot calipers plus the rears. I have now managed to get late BJ8 axles so solved the fitting problem.
Have looked a lot on the forum Re. the question of dual circuit with very different views so my questions are
1. Is dual circuit worth the bother 2. is the brake pedal effort ok without a booster 3. what m/c are available I know of the English black taxis had a dual unit that fitted but very hard to get/ walwood/ & back in 2009 someone mentioned the b210 nissan unit? 4. What is the best bore size? 5. next is the question of disc rotors EBC make a set with green stuff pads but not sure if still available or are the standard BJ8 ones adequate? 6. The rear disc & Jag calipers any clues as to the correct fitment?
Sorry to have so many questions but I value all the advice I see on the forum. The car 1960 BT7 is going to be a rally copy & will do the odd race meeting/hillclimb/ road rally, mind you by the time i finish it I will be to old!
Cheers
Bryn
Newcastle Australia
 

steveg

Yoda
Gold
Country flag
Offline
My 4 wheel disc setup works fine without a booster. Toyota 4-pot front calipers and 3/4" FIAT 124/131 dual master cylinder.

A friend (also BN6) refitted his 3/4" Girling MC and it works fine with the Girling Type 16 fronts and ceramic pads all around. He had used the 5/8" MC when he had his rear drums.

IMO you should build your system without a booster and only add it later if the pedal effort is too great.

I think your Jag/Jag setup is one the folks at Healey Factory in Melbourne are experienced with and you could call them for advice. I'm sure they can sell you the rear rotors and brackets.

The dual-circuit is a safety factor if you go to 4 wheel discs. Think of it like this: the rear drums are large and powerful and the handbrake can stop the car if you have a hydraulic failure. I doubt if the 1" square pads on the Jag e-brakes could stop the car - so the 2nd circuit is advisable.
 
OP
B

bava

Freshman Member
Country flag
Offline
G'day Steve,
Thanks for your comprehensive reply I have taken what you say & am working on it.
At this stage I intend to use a 13/16 Datsun dual M/C ( a mate has a practically brand new one!) with a bias valve. Am going without a booster at first as you suggest.
We have in the town a brake guru who looks after quite a few race & rally cars so I am talking to him for his input as well.
Also while surfing the net (beats watching TV) I came across a bloke in South Africa John who has done almost exactly the same as I want to do. It turns out you have helped him a couple of years back so he was happy to pass on what he has learnt. the rear rotor he used per your advice I believe was a BMW1995 318 TI front disc. Has anything changed? By the way his car is up & running & looks great.
I talked to the Healey Factory in Melbourne but the were clueless Re. the jaguar rear setup!I actually got the s/h BJ8 front axles of off Rob the boss there.
I looked for your "shop" do you sell the bits & pieces? I have the drawings etc for the brackets but would be interested buying ready made. The width of the bracket presumably would have bearing on centralising the disc rotor.
Once again thanks for your help you are a great source of info on Healeys.
Cheers
Bryn
Bryn Warners Bay Australia
 
Similar threads
Thread starter Title Forum Replies Date
S Wanted WTB: 3.5 ratio diff/pumkin for '67 BJ8 Healey 3000 Austin Healey Classifieds 0
E For Sale Austin Healey 100 and 3000 parts Austin Healey Classifieds 1
R 3000 Heater Valve Austin Healey 4
E For Sale Driver quality 1963 Healey 3000 mark 2 Austin Healey Classifieds 1
kodpkd For Sale Alloy valve cover for AH 100-6 3000 PRICE DROP! Austin Healey Classifieds 1
S SOLD!! For Sale 1964 AH 3000 MkIII BJ8 Phase 1 Austin Healey Classifieds 2
Bruce 3000 Rally Grille Installation Austin Healey 5
J 3000 Rear Seats Austin Healey 6
dougie 1960 Austin Healey 3000 Works Lightweight vs. 1962 Ferrari GTO Austin Healey 6
S Wanted Used Austin-Healy 100/100-6/3000 Restoration Guide By Gary Anderson And Roger Moment Austin Healey Classifieds 14
Cutrog1 For Sale Healey 3000 BJ8.... a restoration saga Austin Healey Classifieds 0
H Lucas Starter Model for 3000 Mark II, BT7 Austin Healey 3
M Engine Stand for 3000 Motor Austin Healey 7
D Healey 3000 BT7 rear panels Austin Healey 0
BoyRacer Mystery 3000 Engine Block Austin Healey 2
Scotsman Rack and Pinion Conversion for 3000 Austin Healey 7
A For Sale 1966 3000 Healey Blue BJ8 Austin Healey Classifieds 3
Zitch SOLD!! SOLD - Tri-Carb Exhaust manifold for a 3000 Austin Healey Classifieds 0
AUSMHLY For Sale - 1990 Big Healey, 3000 MK3, HMC Mk4 Austin Healey 2
Zitch For Sale AH 3000 Engine For Sale: $2500 Denver, CO area Austin Healey Classifieds 0
C Rough-Running 3000 Austin Healey 29
E 3000 Healey Door Checks Austin Healey 1
R Wanted Looking for an original AH 3000 Mk1 Drivers Manual 1102B. Austin Healey Classifieds 1
B Austin-Healey late 3000 BJ8 Electrical Diagram Austin Healey 1
B Austin-Healey early 3000 BJ8 Electrical Diagram Austin Healey 0
B Austin-Healey 100-6/3000 Electrical Drawing Austin Healey 2
E Wanted wanted Austin healey 3000 adjustable steering wheel & dash pad Austin Healey Classifieds 2
Editor_Reid In Search Of: AH 3000 BT7L 8921 Austin Healey 0
Z 3000 Front Wheel Bearings Austin Healey 3
Guido36 Custom-Bodied Austin-Healey 3000 Coupe Austin Healey 17
D Wanted: Healey 3000 MkIII body and chassis Austin Healey Classifieds 0
BoyRacer Engine Swap: 3000 Engine Into a BN1 Austin Healey 25
S Grill cowl top piece for AH 3000, BT7, $65 Austin Healey Classifieds 0
Guido36 Healey 3000 cutaway display engine Austin Healey 12
pbraun For Sale Healey 3000 transmission Austin Healey Classifieds 8
O HD8 carb on Healey 3000 Austin Healey 62
S For Sale 3000 BJ8 Laycock 4 speed with 22% OD trans & 2 6 cyln engines / long blocks / BUNDLE Austin Healey Classifieds 1
S For Sale Austin Healey 100-6 and 3000 Factory Service Manual on CD/ROM. Austin Healey Classifieds 0
S For Sale Austin Healey 3000 and 3000 MK II Factory Parts Manual - BN7 & BT7 on CD/ROM Austin Healey Classifieds 0
G 1960 3000 BN7 Top Help Austin Healey 0
C Austin Healey 3000 in Modsports Austin Healey 4
C 1962 Healey 3000 Mark II Steering Box Austin Healey 9
D 1962 3000 Hood/Bonnet Grille Austin Healey 5
maxwedge5281 Front Shroud Differences: 3000 vs. BJ8 Austin Healey 5
maxwedge5281 Wanted wtb....bn6,3000 front shroud Austin Healey Classifieds 10
M 3000 BJ8 Door Seals Austin Healey 9
AUSMHLY 1962 3000 Mk II BT7 speedometer Austin Healey 2
B Wanted 100-6 or early 3000 upper and lower grille opening pieces Austin Healey Classifieds 1
A AH 3000 rear disc brake conversion Austin Healey 28
60TR3A Cost to Rebuild a Healey 3000 Engine [And Recommendations About Who to Do It] Austin Healey 14

Similar threads

Top