steering rack bushes?

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GTiJohn
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Re: steering rack bushes?

#16 Post by GTiJohn » Thu Jul 25, 2019 2:33 pm

This is the description of PCF from the R8 Repair Manual

Image

It's the pin drive (3) or the C-spring (4) that could be causing problems. If the spring breaks, which it often does, then you don't have the pre-load to overcome and it just feels very light all the time.
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Vinny1979
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Re: steering rack bushes?

#17 Post by Vinny1979 » Thu Jul 25, 2019 3:37 pm

Its not light to steer initially, but feels light (ish) when turning more one way, maybe worth trying a different rack even a 25/zr one. I dont like spending much mind :laughing2 hence 6 years to get this on road
1993 Rover 220 GSi Turbo , 2005 MG ZS 180 mk2

961tat
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Re: steering rack bushes?

#18 Post by 961tat » Thu Jul 25, 2019 8:20 pm

Will the 25 rack fit without a lot of work ? , I remember a article in project cars , track r8 214 car and as below copyed

"Also finally got the steering column panel from a scrap ZR so i can drill out the spot welds and fit the mounting bracket to the R8 so can use the ZR steering rack and front sub frames..."

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Re: steering rack bushes?

#19 Post by GTiJohn » Fri Jul 26, 2019 8:08 am

961tat wrote:
Thu Jul 25, 2019 8:20 pm
Will the 25 rack fit without a lot of work ? , I remember a article in project cars , track r8 214 car and as below copyed

"Also finally got the steering column panel from a scrap ZR so i can drill out the spot welds and fit the mounting bracket to the R8 so can use the ZR steering rack and front sub frames..."
The 25 switched to a more-conventional (and therefore cheaper) 'valve over' design from the R8's 'valve under' one. This moves the hydraulic spool vavle above the centreline of the rack

This meant a new subframe , column and pipes, in addition to a different pressing in the body for the steering gear's taller pinion to sit in. This is what was cut out of the Ad and welded into the R8 shell. Then the ZR subframe and column bolt in.

So although it's a possible mod, it's not an easy one...
I like Twin Cams.... and Single Cams

961tat
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Re: steering rack bushes?

#20 Post by 961tat » Fri Jul 26, 2019 8:00 pm

Thought it would a long job , are all r8 steering racks the same or does the tomcat have a different type , a recon would be best why forward surely . Or a know second one .

Vinny1979
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Re: steering rack bushes?

#21 Post by Vinny1979 » Fri Jul 26, 2019 8:16 pm

annoyingly there were recon ones last year for £80 :laughing2
1993 Rover 220 GSi Turbo , 2005 MG ZS 180 mk2

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Re: steering rack bushes?

#22 Post by GTiJohn » Sat Jul 27, 2019 7:54 am

961tat wrote:
Fri Jul 26, 2019 8:00 pm
Thought it would a long job , are all r8 steering racks the same or does the tomcat have a different one?
They are all fundamentally the same but I think the D-series racks have different ram-feed pipes to c!ear the rear engine mount. (These are the 2 short pipes that go from the valve to the left and right pistons and are easily swapped over from your old rack)
I like Twin Cams.... and Single Cams

engtmitc
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Re: steering rack bushes?

#23 Post by engtmitc » Sat Jul 27, 2019 9:21 pm

Vinny1979 wrote:
Fri Jul 26, 2019 8:16 pm
annoyingly there were recon ones last year for £80 :laughing2
Recon ones do pop up on ebay from time to time, I bought one recently for 60 quid. Works fine.

I wish Rover had fitted a faster/better feeling rack to the 220s in particular though, to help overcome the weight of the engine, had a late 214SEi for a short time, obviously with PAS, and it felt more agile even with slightly narrower 185 alloys than the turbo.

Having said that my tubby cornered quite well through the sweeping dual carriageways and roundabouts in Redditch this evening (rear all recently been polybushed though), if you trust the steering (and maybe increase the tyre pressures from standard 30 to say 36...).
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