Triumph 2000 Advice and Chat
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https://www.triumph2000register.co.uk/phpBB3/viewtopic.php?t=6596
Surprisingly, the official BL workshop manual for the 2000 and 2500 makes no mention of this drilling to aid centralising the rack, yet it is clearly mentioned in the official BL workshop manual for the Stag which uses the same rack...
I was under the understanding that there was two suppliers (AdWest and another of whom the name escapes me for the moment) of the PAS. Whilst what other posters have stated is relevant even on new(ish) cars with low mileages had the difference. As I say it could just be the different makers.johnnydog wrote: Wed Jun 17, 2020 1:58 pm Actually, that is quite common! I have had several PAS Triumphs over the years, and the feel of the steering does vary - as you say some are lighter then others. This also applies to manual steering as well.
Other factors do come into it - i.e. the efficiency of the pump, tyre pressures / tyre size and steering components (if bottom ball joints, track rod ends and upper suspension strut mountings are new, they could arguably be stiffer than worn joints / mountings that may have certain degree of play in them.) Wear in the ball of the track rods themselves would no doubt create a lighter feel too.
And there are two sizes of PAS steering wheels on the 2500's. Mk2 PI's had a larger steering wheel than the S, which could be a factor too.
I was once told by an 'old boy' mechanic that on the Triumph, an indication that the rack seals are getting worn to the point that they can start leaking fluid into the gaitors, is when the 'steering feel' is very light.
How much truth there is in this, I'm not sure, but whenever I have tried a recently reconditioned or rebuilt rack, the feel always seemed heavier than before the overhaul.