Marina Brakes
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
By using this site, you agree to our rules. Please see: Terms of Use
-
- Minor Legend
- Posts: 3824
- Joined: Fri Apr 16, 2004 1:30 pm
- Location: Shropshire/Sussex/Cumbria
- MMOC Member: No
Marina Brakes
How hard are marina disks to fit, and are they the same as spridget brakes (i think i read they are somewhere..........) if they are and are relatively straight forward to fit i could fit them for about £50.....
Serial Morris Minor Owner and Old Vehicle Nutter
www.facebook.com/transitionclassics
www.facebook.com/transitionclassics
Easy to fit, if you have the right bits. Do you want to keep standard Minor wheels? If so, you need Marina hubs modified to Minor stud spacing - available from many Minor Spares dealers. If not, then you need to fit Marina wheels to the back end, and that's another subject all together. Back to the discs: You need Marina bearings and brake hoses, plus special bearing spacers, again from many Minor Parts dealers.
Remove Minor hubs & back plates. Drill out bolt holes in king pin to suite Marina caliper mounting bracket; and bolt on same. Bolt new hub to disc. Fit bearings & assemble to stub axle. Fit calipers & pads, and connect up. Job done, couple of hours tops. Really is worth getting the kit with full instructions & all parts to save faffing about.
Now the not-so-easy bit, but still simple: Remove master cylinder & strip down to remove the little top hat rubber cup at the back end. Put everything else back as it was, but why not renew the seals while you're about it. The cap keeps pressure in the system and must NOT be used with discs - they'll bind on. Also, you MUST fit a remote fluid reservoir at this time - discs displace more fluid than the drums, and you need the extra reserve. Bleed the system & that's it all done. BUT braking will need A LOT of effort, and won't be any better than drums until...... you fit a servo to go with the discs. To do this you need to drill & tap the manifold (remove from engine to avoid swarf getting inside the motor) and also change the copper brake pipe layout to feed from master cylinder into servo & then out to all brakes. Servo kits again from Minor Parts Dealers.
Allow two days for the whole job so as not to rush anything - get it right as your life depends on the brakes working OK. It's a great mod, and I reckon the best of the bolt on goodies that you can do. I've done one car with uprated dampers with discs & one with standard dampers & discs. Nothing to chose between them under braking.
Good luck.
Remove Minor hubs & back plates. Drill out bolt holes in king pin to suite Marina caliper mounting bracket; and bolt on same. Bolt new hub to disc. Fit bearings & assemble to stub axle. Fit calipers & pads, and connect up. Job done, couple of hours tops. Really is worth getting the kit with full instructions & all parts to save faffing about.
Now the not-so-easy bit, but still simple: Remove master cylinder & strip down to remove the little top hat rubber cup at the back end. Put everything else back as it was, but why not renew the seals while you're about it. The cap keeps pressure in the system and must NOT be used with discs - they'll bind on. Also, you MUST fit a remote fluid reservoir at this time - discs displace more fluid than the drums, and you need the extra reserve. Bleed the system & that's it all done. BUT braking will need A LOT of effort, and won't be any better than drums until...... you fit a servo to go with the discs. To do this you need to drill & tap the manifold (remove from engine to avoid swarf getting inside the motor) and also change the copper brake pipe layout to feed from master cylinder into servo & then out to all brakes. Servo kits again from Minor Parts Dealers.
Allow two days for the whole job so as not to rush anything - get it right as your life depends on the brakes working OK. It's a great mod, and I reckon the best of the bolt on goodies that you can do. I've done one car with uprated dampers with discs & one with standard dampers & discs. Nothing to chose between them under braking.
Good luck.
Your new master cylinder can still be used, you've just got to remove the rubber cap. The remote fluid reservoir kit screws into the end of the main cylinder body and replaces the original cap (the original has an air hole that would leak fluid out from the remote system) but uses the bulk of the original master cyclinder, so it just saves you the job of renewing the seals, but leaves you with all the work !
-
- Moderator
- Posts: 7592
- Joined: Thu Feb 14, 2002 12:00 am
- Location: Watford, Hertfordshire.
- MMOC Member: No
JLH now recommend putting a 1/8" hole in it and not removing it completely as it stops the drag on the calipers but still retains some residual pressure for the rear shoes which is lost with complete removal of the cap.Remove master cylinder & strip down to remove the little top hat rubber cup at the back end
Cheers
Kevin
Lovejoy 1968 Smoke Grey Traveller (gone to a new home after13 years)
Herts Branch Member
Moderator MMOC 44706
Kevin
Lovejoy 1968 Smoke Grey Traveller (gone to a new home after13 years)
Herts Branch Member
Moderator MMOC 44706
-
- Moderator
- Posts: 7679
- Joined: Fri Nov 01, 2002 2:55 pm
- Location: LEAMINGTON SPA
- MMOC Member: No
Do they have any brakes/hydraulics engineers? Sorry Kevin - I'm not shooting the messenger, just bemused by JLH's logic.JLH now recommend putting a 1/8" hole in it and not removing it completely as it stops the drag on the calipers but still retains some residual pressure for the rear shoes which is lost with complete removal of the cap
Any residual pressure can be enough to make calipers overheat leading to a brake failure.
The rear brakes don't need to be pumped up unless
a) they need adjusting (adjust them!!)
b) there's air in the system (if you have a lot of air, you have a serious problem, and just be greatful if the front brakes work)
If you stick a small hole in the cup valve, then you stand a chance of pumping the brakes up, and the pressure will disperse in a few seconds. A 3mm hole (bout an eighth) would probably be too big, and I would expect the benefit is far too little to bother with it.
-
- Moderator
- Posts: 5108
- Joined: Mon May 20, 2002 1:00 am
- Location: Stoke-on-Trent, Staffordshire, UK
- MMOC Member: No
Agreed. I like JLH but he can be a bit 'scrap-heap challenge' with his logic sometimes!!If you stick a small hole in the cup valve, then you stand a chance of pumping the brakes up, and the pressure will disperse in a few seconds. A 3mm hole (bout an eighth) would probably be too big, and I would expect the benefit is far too little to bother with it.
Just remove the cap and have done with. Actually if you can afford another £50 then it's a good idea to renew the master cylinder while you are at it and have it out. It's much easier that way and you have extra peace of mind!
- d_harris
- Minor Legend
- Posts: 4388
- Joined: Thu Apr 15, 2004 3:52 pm
- Location: Sunny Brighton
- MMOC Member: No
Guess who it was who broke the one before? its not 6 months anyway matt, It broke when the engine was out so more like 18 months
btw everybody, me being me decided to muck around and "pretend" to drive the car (I'm still a wee kid at heart) and stamped on the brakes and a break pipe at the back ruptured because something (can't remember what) had been rubbing on it and the pressure burst it, we thought the master was knacked so we changed that and when it still didn't work investigated the pipes. - Just as well we didn't go out in it with the pipes like that, imagine if a kid had run out................... the consequences don't bare thinking about
btw everybody, me being me decided to muck around and "pretend" to drive the car (I'm still a wee kid at heart) and stamped on the brakes and a break pipe at the back ruptured because something (can't remember what) had been rubbing on it and the pressure burst it, we thought the master was knacked so we changed that and when it still didn't work investigated the pipes. - Just as well we didn't go out in it with the pipes like that, imagine if a kid had run out................... the consequences don't bare thinking about
-
- Moderator
- Posts: 7679
- Joined: Fri Nov 01, 2002 2:55 pm
- Location: LEAMINGTON SPA
- MMOC Member: No
-
- Moderator
- Posts: 7592
- Joined: Thu Feb 14, 2002 12:00 am
- Location: Watford, Hertfordshire.
- MMOC Member: No
Think how Dizzi feels she already has the car but has not passed her test, I dont know if she has even started her driving lessons yet.i passed my driving test and had nothing to drive!!!!
Cheers
Kevin
Lovejoy 1968 Smoke Grey Traveller (gone to a new home after13 years)
Herts Branch Member
Moderator MMOC 44706
Kevin
Lovejoy 1968 Smoke Grey Traveller (gone to a new home after13 years)
Herts Branch Member
Moderator MMOC 44706