Niels
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| posted on 19/4/16 at 09:27 PM |
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Quaife quick rack sierra
Hi all!
It has been a while that I've worked at the MK, but started off again last week. Currently I have an issue with the fitment of the Quaife quick
rack in the Sierra housing. The size of the pinions' are not equal resulting in a fit that is to tight as it seems that the bearing is pressing
on the Quaife pinion when tightening the locknut.
Does anyone now what the issue might be? Is the housing I have not from a Sierra, or is the pinion just not the right one?
Measurements are in metric mm. (Oud=Old and Nieuw= New)
This is the rack and pinion from Quaife:
https://shop.quaife.co.uk/ford-sierra-lhd-quaife-quick-rack-pinion-kit-2-8
Regards,
Niels
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nick205
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| posted on 20/4/16 at 08:42 AM |
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I've not bought the part from Quaife or rebuilt a Sierra rack. However looking at your photos the parts look so different to each other I
can't see how the pinion would interface with the rack rod itself - the cog parts look too different.
I would have thought you had to fit a Quaife pinion and rack rod to change the gearing and speed up the steering. Others who have made the change may
have more information, but things don't look right to my eyes.
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Niels
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| posted on 20/4/16 at 08:57 AM |
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quote:
Originally posted by nick205
I've not bought the part from Quaife or rebuilt a Sierra rack. However looking at your photos the parts look so different to each other I
can't see how the pinion would interface with the rack rod itself - the cog parts look too different.
I would have thought you had to fit a Quaife pinion and rack rod to change the gearing and speed up the steering. Others who have made the change may
have more information, but things don't look right to my eyes.
The new pinion is able to interface with the rack as long as the pinion isn't fixed in the casing. I guess there are two options:
1) The old rack+casing I have is not from a Sierra. (Bought it a few years ago from a builder as well)
2) The new pinion is not the correct one to fit the Sierra casing.
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Grimsdale
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| posted on 21/4/16 at 07:18 AM |
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is the quaife part right hand drive only?
I assume you sourced a new rack for the housing from quaife?
Have you slackened off the Hex socket adjuster on the rack housing by the pinion, and re-adjusted on reassembly? is the plastic bush inside correctly
located?
Your rack looks like a sierra non-pas one. Is the quaife part for a PAS rack?
[Edited on 21/4/16 by Grimsdale]
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Niels
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| posted on 22/4/16 at 06:39 AM |
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quote:
Originally posted by Grimsdale
is the quaife part right hand drive only?
I assume you sourced a new rack for the housing from quaife?
Have you slackened off the Hex socket adjuster on the rack housing by the pinion, and re-adjusted on reassembly? is the plastic bush inside correctly
located?
Your rack looks like a sierra non-pas one. Is the quaife part for a PAS rack?
[Edited on 21/4/16 by Grimsdale]
The parts are for LHD, I've checked them.
The rack is indeed a non-pas one, though if I remember correctly the PAS rack is already ca. 2.8 lock-to-lock (Not 100% sure though)
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Niels
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| posted on 25/5/16 at 05:29 PM |
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Small update and a question. Worked on the rack again and discovered the gear adjuster might be the problem as it seems worn down completely. So now
looking for a new one and the corresponding plug. Does someone know if these are available somewhere? I think this are the oem numbers: 613519 and
1619198.
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Schrodinger
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| posted on 26/5/16 at 06:25 AM |
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Just looked at your pictures again and it seems to me that the worm gears twist in opposite directions, so could mean one is lhd and the other rhd?
Keith
Aviemore
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Niels
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| posted on 26/5/16 at 06:30 AM |
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quote:
Originally posted by Schrodinger
Just looked at your pictures again and it seems to me that the worm gears twist in opposite directions, so could mean one is lhd and the other rhd?
That is indeed the case, though the rack is the opposite direction from the original as well. I was worried about it as well but after checking it is
the correct LHD rack. Thanks for pointing it out anyway 
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