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troppo

Rear discs

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G`day all

I`m gathering parts to do my MKII  door and have a mental block. When changing to rear discs what parts do you need? Im pretty sure that one of the psrts is from a volvo. but thats aout all my pooe tired old mind can come up with.

Cheers

Troppo

 

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4 hours ago, xplod55 said:

Most Maltese conversions where done using a Fiat 132 Rear axle

Probably because you had a never ending supply 50 miles away in Pasta Land!

Never heard of Volvo parts being used - but anything is possible. Usual combination is Sierra / Cossy calipers, Cossy Escort cable, Pug 205 / 206 / 309? disc's and someone's fabricated axle mount. Or just buy the whole lot from someone like Motorsport Tools / Rally Design!

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1 hour ago, eeb43 said:

fiesta mk1/2 front discs 

Or take fiesta mk3 front discs these got the same centerhole as the escort/capri/taunus 63.4 mm , but these are all vented ? i think , and that can give a problem with the calipers escort mk3/4 /wheels , than can be used a spacer.

This is what i gonna fit on mine escort mk1 , with a hydraulic handbrake ,  if this is legal for road use in England ?

IMG_3095.JPG

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Little help needed :

Took my rear discs to be skimmed yesterday which would have been £25 each. 

Fair play to Mike at the engineering shop, he told me not to bother and just buy a new set. Going through an old parts book, my discs measured up the same as a Mk2 1.1 Fiesta. Ordered a set yesterday from Fastparts at £17.

Having just gone to collect them today, the 4 stud holes did not match and the centre hole diameter was also bigger. Guy was sure that they were mk2 Fiesta. 

So, I have an English axle with 22 spline drive shafts. Calipers are Sierra Cosworth. Discs are 239mm diameter and 10mm thick. 

Anyone bought or fitted a rear Disc Conversion recently and if so, what discs did you use?

Thanks... 

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Mine were mk3 escort front think same as the fezzy. My holes lined up as pcd is the same but centre hole is larger.

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14 minutes ago, colr6 said:

Mine were mk3 escort front think same as the fezzy. My holes lined up as pcd is the same but centre hole is larger.

Can't give any more likes today. 

I'll pop down the spares shop in the morning and maybe order a set of them up. I'll make a template up too for him. He's normally pretty good. 

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1 step forward, 2 steps back. 

Got a set of Mk3 Escort discs. Pcd and centre boss is perfect, but the offset is too deep. Thought I might be able to work with them, but it's not viable. 

Offset on mine are 32mm.

 

IMG_20181111_180729807.jpg

IMG_20181111_181652383.jpg

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18 minutes ago, dt36 said:

1 step forward, 2 steps back. 

Got a set of Mk3 Escort discs. Pcd and centre boss is perfect, but the offset is too deep. Thought I might be able to work with them, but it's not viable. 

Offset on mine are 32mm.

 

IMG_20181111_180729807.jpg

IMG_20181111_181652383.jpg

you need mk1/2 fiesta discs

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I bought a set of mk2 fiesta discs, as I believe that's what they were. Got them home and the PCD and centre hole were wrong. 

The more I'm thinking about it, I think the part shop messed up and gave me the wrong discs. 

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They were probably in the wrong box 

pcd is definitely the same 

You might have to get the half shafts machined so discs go over them or inside the disc depending on wall thickness

you need mk5 Escort RS2000 handbrake cable front and rear section plus new pins to connect them together, if your car has middle propshaft mounting point you may have to cut that out to give enough room for the cable and you also need the extra mount welded inside the tunnel opposite the mount there already  

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32 minutes ago, dt36 said:

I bought a set of mk2 fiesta discs, as I believe that's what they were. Got them home and the PCD and centre hole were wrong. 

The more I'm thinking about it, I think the part shop messed up and gave me the wrong discs. 

yes big time if the pcd was wrong!!!! lol

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Yes, I think they were definitely wrong.

Just to clear things up with mine, it already has a rear Disc Conversion. Handbrake is mechanical (Escos) and Calipers are from a Sierra Cosworth. 

I'm just looking to change my discs now for a new set, as they've been on there for years and have some  run out. It's cheaper to buy new discs than get them machined. Just got to get the right b@stard set. 

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Right, here we go again.

I think I have now found the correct discs from a MK2 Fiesta Van.  All measurements on the drawing match up with mine.  Although their height is 42.9mm, They have added the 10mm thickness of the disc.  I measured 32mm on mine from the top face of the disc, so more or less the same.  PCD and Centre also measure the same as the MK3 Escort disc I bought, so all good there.

Fingers crossed...

 

BREMBO Brake Disc Front Axle, Ø_ 239.5mm, Solid.jpg

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Yeeeeeeeees, Mk2 Fiesta van. 

3rd time lucky :-)

Rally Design have also credited my account today for the discs I returned. Good service. 

 

IMG_20181119_201251511.jpg

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Bit of positive and negative today:

Discs fitted and spacing is all good, plus the cyclic squeek I had has now gone. This was the initial reason I was looking for new discs, as I'd been chasing this squeek. 

Ran a needle file over all caliper running surfaces and copper slipped the pads. 

Having recently had a RR session, it identified a high transmission loss to the wheels, which proved to be back brakes binding. 

Drivers side is running fairly free now , but I would think it should run a little more lightly.  Passenger side, although now a bit better still has some bind on it with handbrake cable disconnected. These have definitely  been fitted right and pads are sitting and running free in calipers. Piston was fully wound back before refitting.  Calipers are relatively new Sierra Cosworth type. 

Car is fitted with a dual circuit bias pedal box. My thought now is that perhaps the Master Cylinder for the rear is not fully releasing on pedal return and in turn not fully releasing the piston at the calipers. That, or the bias pedal setup needs looking at and maybe there is pressure being applied to the rear circuit, even though the pedal is not being pressed. 

However, I would have thought that this would cause equal pressure to be felt at both callipers. T-Piece on back axle I assume to be straight through and not any type of shuttle valve 

Anyone experience this in the past or have any different thoughts? 

 

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Two things to try, you have enough clearence on the rear cylinder rod when brakes are off ( should be able to rattle the cylinder rod)

A couple of times I've come across the h/ brake actuating rod on the caliper either binding in the caliper case or the lower part of the h/ brake swivel in the caliper going rusty and sticking. Both the above have contributing factors of not getting much use and the seal on the handbrake rod where it goes into the caliper failing or not sealing allowing water ingress to the mechanism. To check this you need a caliper overhaul kit as you need to strip the caliper to facilitate the removal of the h/ brake rod within the caliper. Quite a simple task to strip and rebuild. If the calipers are only a couple of years old can't see any problem with the Pistons going rusty. I use the stainless Pistons in mine to counteract this.

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Cheers Col. She's gone shopping with my daughter, so not dragged me out. 

First thing I'm going to look at now this afternoon is the freeplay  to the rear cylinder. 

When you sort your Escort out, leave the standard Drum and Servo set up on it. This rear Disc conversion and bias pedal box was already on mine when I bought it. Having had a previous RS with standard Brakes, I personally prefer them and were a nicer feel. 

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