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Mk2 Escort rear brake cylinder diameter

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Flighter
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2018/02/02 22:20:09 (permalink)
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Mk2 Escort rear brake cylinder diameter

Hi,
Can anyone confirm what the rear brake cylinder diameter is for a Mk2 Escort? Both Gregory's and Ford manuals say 17.8mm, but some on-line part catalogs say 19.05mm, such as Burton's for the RS2000. I'm of course leaning to the 17.8mm, but have a nagging suspicion about whether it is actually correct, so I thought I'd check here first.
Thanks.
post edited by Flighter - 2018/02/02 22:23:38

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    Philh
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    Re: Mk2 Escort rear brake cylinder diameter 2018/02/03 00:45:00 (permalink)
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    Mk2 Escort microfiche parts list shows
    1.3  20.6mm  74EB 2261 AA
    1.6  17.7mm  75AB 2261 BA
    2.0  19.0mm  75AB 2261 AA
    #2
    Noono
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    Re: Mk2 Escort rear brake cylinder diameter 2018/02/03 09:40:10 (permalink)
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    Aus. Mk2's, including RS2000, are 3/4" (19.05mm). 
    I put 13/16" (20.64mm) in my Mk2. They were new PBR cylinders listed for a 1975/76 1.3L model.
    That gives 17% more piston area!
    #3

    NQRS
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    Re: Mk2 Escort rear brake cylinder diameter 2018/02/03 09:44:46 (permalink)
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    Do The RS version Have bigger diameter rear brake Drums than the standard Mk 2, hence the bigger cylinders?
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    Noono
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    Re: Mk2 Escort rear brake cylinder diameter 2018/02/03 10:05:35 (permalink)
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    NQRS
    Do The RS version Have bigger diameter rear brake Drums than the standard Mk 2, hence the bigger cylinders?



    Aus. RS2000's have the same rear cylinders & drums as the standard 2L.
    My previous post should have said "Aus. 2Litre Mk2's, including RS2000's, are 3/4" (19.05mm)
    I don't know about the 1.6 Mk2.
     
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    Flighter
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    Re: Mk2 Escort rear brake cylinder diameter 2018/02/03 11:36:02 (permalink)
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    So even Ford is inconsistent (between their repair manual and the microfiche). I also thought all Mk2s used the same diff and rear brakes; at least by mid-77 when the 2000cc engines were added to the range. No wonder I'm confused.

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    Noono
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    Re: Mk2 Escort rear brake cylinder diameter 2018/02/04 10:18:06 (permalink)
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    Protex Australia catalogues are usually reliable: http://www.protexparts.com.au/catalogue/ & shows:
     
    MK11 rear cyls - 17.85mm for all 1.6L, & 19.05mm for all 2L
    #7
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