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Escort MK1 MK2 steering columns

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escfalcap
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2021/09/13 20:00:54 (permalink)
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Escort MK1 MK2 steering columns

Hi Knowledgeable folk.
 
We know that MK1 steering column spline (& spline diameter) is different than the MK2.
My questions are;
 
1. did this change in 1975 at the body shape change time, or 1977 when the true MK2 started?
 
2. besides at the steering wheel end, did the spline change at the steering rack uni coupling?
 
3. are the steering columns interchangeable ie length, fitment through fire wall etc?
 
Thanks in advance.
Mark
#1


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    martymexico
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    Re: Escort MK1 MK2 steering columns 2021/09/14 10:44:29 (permalink)
    +1 (1)
    Hi Mark
    I've pulled so many Escorts to bits over 35yrs and the equation is ..
    All mk1 escort is the same, with the small spline.
    Mk2 Escort came on the scene in mid 75 and converted to metric with bolts etc. The column is mk1 length but mk2 spline up until mid 77 where it went a couple inches longer , telltale of this is the flex coupling has a longer end on the short column.
    The actual column bar should fit mk1 if it's the short one but the outer tube won't. I have never done the swap as I cut the steering wheel boss and replace with the other to suit which I reckon is a easier solution
    #2
    escfalcap
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    Re: Escort MK1 MK2 steering columns 2021/09/14 12:46:30 (permalink)
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    Hi Marty, I thumbed you mate. Thanks for the explanation.
    I have two steering rack couplings and one is rag the other rubber. They are identical in length. Thoughts?
     
    On another tangent I have had issues before with getting the correct coupling length and maybe its this variation in shaft lengths etc that is the cause?
    #3

    martymexico
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    Re: Escort MK1 MK2 steering columns 2021/09/14 15:03:03 (permalink)
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    Thanks mate👍
    Early mk1 Escort was the rag type, later mk2 was a rubber pad, at a slightly longer length of maybe 10mm, nothing to cause grief over. And yes that would've been your cause of the coupling didn't reach or was bottoming out not allowing the rack to mount up... I've been there many times..
    #4
    escfalcap
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    Re: Escort MK1 MK2 steering columns 2021/09/14 16:08:51 (permalink)
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    If anyone is interested. I actually measured this time Marty!
    The MK1 rag coupling comes in at ~84mm. The MK2 rubber coupling is ~94mm
    The MK1 steering column rod length is exactly 1000mm
     
    I have had the issue of coupling lengths when fitting the GRP4 universal type. There seems to be a few. I assume that is to account for the variable steering column rod length and the length of the shaft out of the steering rack?
     
    Should do an Escort & Capri trivia night for those of us who don't have a life at the moment!
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    martymexico
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    Re: Escort MK1 MK2 steering columns 2021/09/14 19:44:11 (permalink)
    +1 (1)
    Steering rack shaft length is the same through all escort models, except Lotus TwinCam, they had a long shaft to clear the starter motor.
    I think when you squash the mk2 flex coupling so the rubber isolator is flat ( this is how it should be installed) it will be closer to the mk1 hight . Never really had probs with grp4 couplings, tho in the early 90s they didn't make the extended type for 75-77 , so I couldn't use one as my car is a 76 coup, owned it since 1996 , it still doesn't have one lol !!

    Edito,
    Forgot to answer 1 question... All splines at the rack end are the same . Mk2 have metric track rods and can be swapped for mk1 if needed or vice versa if doing a Capri strut swap and rack rebuild..
    post edited by martymexico - 2021/09/14 19:48:02
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