jps
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| posted on 10/1/20 at 04:03 PM |
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Telescopic column doesn't telscope!
Having seen this thread here:
http://locostbuilders.co.uk/viewthread.php?tid=215982
It has confirmed my suspicion that the telescopic part of my column is seized - specifically the part with the white triangular plastic bush that sits
between the triangular length of the Sierra column and the 'crimped tube ' part - i.e. all the parts shown in the pic here:
Obvious questions are - am I right that the white plastic bush part means it should be sliding in and out AND - if so, how do I free it off!!!
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Angel Acevedo
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| posted on 10/1/20 at 04:35 PM |
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It should be fairly tight.
It is supposed to collapse upon impact.
How tight I don´t know, the one I disassembled from my donor ´95 Ford Mustang was not that tight though.
Beware of what you wish.. for it may come true....
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big_wasa
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| posted on 10/1/20 at 06:32 PM |
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The picture is actually a Granada column, it’s slightly different to the Sierra and has come in a box of bits. I don’t even know if it serviceable but
as above I am sure it’s only meant to collapse under impact. I would say that has taken some force to pull it out.
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r1_pete
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| posted on 10/1/20 at 06:37 PM |
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If its the same as the mgb setup, the plastic is poured in molten while the column length is held, there will probably be holes and dimples in each
part of the column so the plastic insert fixes the column lenth, but will break and allw the column to collapse on impact.
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johnemms
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| posted on 10/1/20 at 07:52 PM |
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My steering slides freely as it fully adjusts up - down - in - out..
But yes it is supposed to collapse in the event of impact..
Own chassis & Build - First time pass!!
"7's" aren't really "cars", they are 'experiences"
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JeffHs
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| posted on 10/1/20 at 08:22 PM |
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As R1Pete says, the extruded plastic 'pips' through holes in the metal is what stops it sliding, and these bits break on impact. Many
years ago I accidentally collapsed a Sierra column when fitting an after market steering wheel. I repaired it by drilling through the holes and the
plastic and filled the hole with the same gauge aluminium knitting needle. I reckoned that the ali would break about as easily as the original
plastic. Drove it for years like that.
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Mr Whippy
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| posted on 10/1/20 at 09:46 PM |
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Having tested such columns with my face I can attest the forces involved are more than sufficient to make that column collapse 
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snapper
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| posted on 11/1/20 at 07:21 AM |
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quote:
Originally posted by Mr Whippy
Having tested such columns with my face I can attest the forces involved are more than sufficient to make that column collapse
Have now got ‘ATIL OTOM’ pressed on to your forehead?
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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jps
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| posted on 11/1/20 at 08:25 AM |
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quote:
Originally posted by johnemms
My steering slides freely as it fully adjusts up - down - in - out..
But yes it is supposed to collapse in the event of impact..
Assuming you have a Sierra column, which part does this movement come from then? I have an adjustable type column where the bracket that mounts the
column to the chassis allows the up down/back forth. But the column itself is a fixed length. ..
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Mr Whippy
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| posted on 13/1/20 at 12:07 PM |
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quote:
Originally posted by snapper
quote:
Originally posted by Mr Whippy
Having tested such columns with my face I can attest the forces involved are more than sufficient to make that column collapse
Have now got ‘ATIL OTOM’ pressed on to your forehead?
Nope but my nose told me bare metal spokes and no airbag were a bad idea.... I wish I'd kept that steering wheel to hang on the wall 
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