Mk 2 brake calipers
#1
#2
The following users liked this post:
Glyn M Ruck (11-17-2021)
#3
#4
#5
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,465
Received 1,463 Likes
on
1,135 Posts
![Default](/forum/images/icons/icon1.gif)
From some time in 57 kits were made available to retrofit discs to the rear of a Mark1. Running change was done in production.
"Unquestionably the most important, though, was the introduction of Dunlop disc brakes on all four wheels as an option shortly after 3.4 production began. In practice, very few 3.4-litre cars would be delivered with drum brakes.
Credit James Taylor.
"Unquestionably the most important, though, was the introduction of Dunlop disc brakes on all four wheels as an option shortly after 3.4 production began. In practice, very few 3.4-litre cars would be delivered with drum brakes.
Credit James Taylor.
#6
#7
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,465
Received 1,463 Likes
on
1,135 Posts
![Default](/forum/images/icons/icon1.gif)
It is a matter of balance between back & front. Brembo, Ate, (Alfred Teves), OEM's etc. design in that balance for a specific car.
If you leave drums on the rear then use cutaway spats to cool them & prevent fade. Mk1 drum brakes were pretty awful.
If you leave drums on the rear then use cutaway spats to cool them & prevent fade. Mk1 drum brakes were pretty awful.
Last edited by Glyn M Ruck; 11-17-2021 at 05:44 PM.
Trending Topics
#8
![Default](/forum/images/icons/icon1.gif)
There is no benefit it installing disc brakes on the Rear, the drums are quite sufficient on the rear.
Except maybe when you are racing on the circuit.
I changed to bigger vented discs on my MK1 ( E-type ) but needed a MK2 front axel.
Downside is my MK1 disc wheels do not fit anymore.
Except maybe when you are racing on the circuit.
I changed to bigger vented discs on my MK1 ( E-type ) but needed a MK2 front axel.
Downside is my MK1 disc wheels do not fit anymore.
On the rears I might experiment a little to see how far I can push the rear wheels out, by using the Mk 2's wheels and I believe there might be a little more space available if a spacer was fitted.
Last edited by markone1957; 11-18-2021 at 11:32 AM.
#9
![Default](/forum/images/icons/icon1.gif)
From some time in 57 kits were made available to retrofit discs to the rear of a Mark1. Running change was done in production.
"Unquestionably the most important, though, was the introduction of Dunlop disc brakes on all four wheels as an option shortly after 3.4 production began. In practice, very few 3.4-litre cars would be delivered with drum brakes.
Credit James Taylor.
"Unquestionably the most important, though, was the introduction of Dunlop disc brakes on all four wheels as an option shortly after 3.4 production began. In practice, very few 3.4-litre cars would be delivered with drum brakes.
Credit James Taylor.
#10
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,465
Received 1,463 Likes
on
1,135 Posts
![Default](/forum/images/icons/icon1.gif)
If you over brake the car on the front & do a quick stop on a wet road the car will do a 180 degree spin or worse. The car becomes unstable under braking.
Keep the Jaguar brake balance rear to front.
Last edited by Glyn M Ruck; 11-18-2021 at 08:40 AM.
#11
![Default](/forum/images/icons/icon1.gif)
I think that when the disc brakes on a 3.4 or 3.8 Mk2 are all in good order, the rear wheels will lock up before the front. This is contrary to general practice, but doesn't seem to cause any obvious problem, possibly because of strong understeer/straight line stability/front weight bias. I have heard it claimed that locking the Mk2's rear wheels first is a useful way of bringing the rear around in extreme situations, a foot brake generated hand brake turn, but it's not something that I've tried.
In the 1970s when Mk2s were less well cared for, the rear brakes were often the first to suffer reduced function from lack of maintenance. However, with the weight bias, it often went unnoticed by the driver.
In the 1970s when Mk2s were less well cared for, the rear brakes were often the first to suffer reduced function from lack of maintenance. However, with the weight bias, it often went unnoticed by the driver.
#12
![Default](/forum/images/icons/icon1.gif)
I think that when the disc brakes on a 3.4 or 3.8 Mk2 are all in good order, the rear wheels will lock up before the front. This is contrary to general practice, but doesn't seem to cause any obvious problem, possibly because of strong understeer/straight line stability/front weight bias. I have heard it claimed that locking the Mk2's rear wheels first is a useful way of bringing the rear around in extreme situations, a foot brake generated hand brake turn, but it's not something that I've tried.
In the 1970s when Mk2s were less well cared for, the rear brakes were often the first to suffer reduced function from lack of maintenance. However, with the weight bias, it often went unnoticed by the driver.
In the 1970s when Mk2s were less well cared for, the rear brakes were often the first to suffer reduced function from lack of maintenance. However, with the weight bias, it often went unnoticed by the driver.
To fully understand the Mk 1 and 2 braking systems I will endeavour to find the 'parts manuals' for both cars to compare part numbers - a scant search has not so far shown up any copies
Last edited by markone1957; 11-18-2021 at 12:07 PM.
#13
#14
#15
#16
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,465
Received 1,463 Likes
on
1,135 Posts
![Default](/forum/images/icons/icon1.gif)
You can force an S type to lock up it's rear wheels but it happens just after the front in the wet. Pretty much optimum for a non ABS car. This on radial tyres. On dirt with Cross ply rears seem inclined to lock first. Braking bias seems very close to 50/50
Mk 1 & 2 Manual pdf. 1st listing. Be patient. Or take your pick. Sorry my original Jaguar copy is too large to download to this forum. You can PM me an e mail address & I will gladly send it to you (MK2 Jaguar original).
.
https://www.google.com/search?q=Jagu...t=gws-wiz-serp
Mk 1 & 2 Manual pdf. 1st listing. Be patient. Or take your pick. Sorry my original Jaguar copy is too large to download to this forum. You can PM me an e mail address & I will gladly send it to you (MK2 Jaguar original).
.
https://www.google.com/search?q=Jagu...t=gws-wiz-serp
Last edited by Glyn M Ruck; 11-18-2021 at 05:57 PM.
#17
#18
#19
#20