The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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PostPosted: Sat Dec 30, 2017 11:19 pm 
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Location: Highley, Shropshire
I've heard frequently, the theory that a rack mounted solidly at both ends can give unwanted vibes and also "kickback" and "bump steer". I can only speak from my own experience, including 6 years with the Carledo so equipped, but i've had none of that, The steering is just precise and the turn in excellent - and that's it, no downside!
For Alun's benefit, the Carledo is still running it's original rack, which has covered 50+k from new (15k+ with solid mounts) and appears still to be in the same condition as it was when I bought it in 2008, ie minimal play in the n/s track rod balljoint, no other detectable wear. The play is so small, i've not even been bothered to shim it out!
I've not run a car with fully polybushed front frame and suspension AND 2 solid mounts, mainly because I reckon that is a pure track spec, much too much for road use. But I suspect that combo could have unwanted side effects on a road car. With the condition of the roads around where I live, I dont want to risk it!
I've also had a report from Ian (uphill racer) that, in his experience, solid mounts will ensure a bent rack in case of impact damage to the suspension. I don't know what to make of this, my main advice here is "don't bend the suspension!" but Ian was doing stage rallying at the time!

Steve

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2 door '73 Toledo with Vauxhall Carlton 2.0 8v engine OWF 797M (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine EGP 247T (The Dolomega)
'91 Cavalier 2ltr 8v auto
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PostPosted: Sun Dec 31, 2017 1:58 am 
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Joined: Sun Apr 06, 2014 9:49 pm
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Location: Northwich
"don't bend the suspension!"

Seems reasonable advice to me! 👍

In fact in my old Sprint I did bend the rack by hitting a curb with the steering on full lock oversteering at a great rate of knots, but remember I only had a solid mount on the offside at that time.

How it only bent the rack I don't know as it didn't even bend the track rod or anything else.....

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Last edited by shaunroche on Sun Dec 31, 2017 2:05 am, edited 1 time in total.

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PostPosted: Sun Dec 31, 2017 2:00 am 
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Joined: Sun Apr 06, 2014 9:49 pm
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Location: Northwich
Quote:
Shaun, your description reads
Quote:
jack up the engine on the engine mounts
; you have to undo the offside mount and jack up the engine far higher than leaving the mount attached would allow, a good 4-6 inches from memory, hence you not being able to do it!
Ha! Considering it took me all of two days to compress the engine mountings enough to be able to get the engine on the subframe, I'm glad I didn't bother undoing them and just cut the mounts off in a rage with a Dremel instead!

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Still searching for Sprint UUW 410M....If you know it or see it, I want it back! Now known to be in the Llandudno area....
Please get in touch!


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PostPosted: Sun Dec 31, 2017 7:34 am 
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Joined: Sat Apr 12, 2014 10:02 pm
Posts: 2003
Location: Nr Kenilworth
If the track rod isnt level and you shake the wheel side to side to check for play in the rack ball joint there is an upward movement of the rack bar. Really noticeable with a jacked up front end. Maybe this action transfers to the rack and if its solid, theres no where to absorb the motion.

Tony

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