Series 2 New brake cylinders

kermit_rr · Jun 10, 2023

Got myself some new ones as the old ones are had it, rusted solid

Do i fit them straight out of the box or do you clean off the 'grease' inside and put proper brake grease instead? (The red rubber stuff)

Wildefalcon · Jun 10, 2023

I would coat the dust seals in red.

tottot · Jun 10, 2023

As above, often the grease that comes with them has gone dry/stiff while in storage.

kermit_rr · Jun 10, 2023

I'll clean all the stuff off and start again then, I've got plenty of red

Bobsticle · Jun 10, 2023

Pack the red grease under the rubber dust cap. Stops them rusting up again with our delightfully salted roads.

kermit_rr · Jun 10, 2023

Bobsticle said:
Pack the red grease under the rubber dust cap. Stops them rusting up again with our delightfully salted roads.

And the piston on the dry side of the seal, i expect

Bobsticle · Jun 10, 2023

kermit_rr said:
And the piston on the dry side of the seal, i expect

One hopes so.

kermit_rr · Oct 24, 2023

i think i've been a bit dim!!
which is front, which is rear? bigger diameter pistons with the stronger internal spring on the front?

lynall · Oct 24, 2023

Pretty sure bigger is front.

steve2286w · Oct 24, 2023

steve2286w · Oct 24, 2023

I’ve. Just put 2 new wheel cylinders on front passenger side , I put the red grease all over seal and piston , one leaked , one didnt but had been sitting in garage for 5 years
one was silvery TRW other steel like ones above which leaked , just ordered new

kermit_rr · Oct 24, 2023

steve2286w said:
I’ve. Just put 2 new wheel cylinders on front passenger side , I put the red grease all over seal and piston , one leaked , one didnt but had been sitting in garage for 5 years
one was silvery TRW other steel like ones above which leaked , just ordered new

Twin cylinders on the front?
Your book says front and rear should be the same, my book says different and the part numbers match what I've got

I took them out of the boxes and now i can't remember which is which

lynall · Oct 24, 2023

kermit_rr said:
Twin cylinders on the front?
Your book says front and rear should be the same, my book says different and the part numbers match what I've got
I took them out of the boxes and now i can't remember which is which
View attachment 300859

Twin wheel cyl set up is for the front s on the 109, the slaves only have one piston compared to the normal two pistons.

Steves book says June 77 onwards, so series 3.

kermit_rr · Oct 24, 2023

I've studied photos on eBay..
Definitely the bigger cylinder on the front, the part numbers match and difference is obvious
I've had them back to front.. like.. forever!!
Never had a braking problem though

steve2286w · Oct 24, 2023

pologies always assume everyone talking series 3 as that’s what I got, but agree, when you brake, need bigger brakes at front as load transfers to front and so you dont have rear wheel skids, my goal is to get all 4 wheels to lock up on gravel when I get my new wheel cylinders

Series 2 New brake cylinders

kermit_rr

Very

Wildefalcon

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tottot

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kermit_rr

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Bobsticle

De Villes Advocaat

kermit_rr

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Bobsticle

De Villes Advocaat

kermit_rr

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lynall

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steve2286w

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steve2286w

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kermit_rr

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lynall

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kermit_rr

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steve2286w

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