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Post by canuck on Jun 16, 2018 17:45:12 GMT
The height from hub centre to chrome strip (though I haven’t got it on my car but I have used the wing waist line where the strip once was) is 46 cm though as you can see from the photo my car is probably a little lower than even the mk2/3 cars but it’s the look I am going for as you can see
Here is George, lowered to 48cm's from wing waist line.
This equates to 1 spline no fiddling with rear adjustment. The screw is at half way I assume factory setting?
Tires are 155 on the ESM 4.5 wide wheels. Seems low enough to me.
Bruce
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tjt77
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Post by tjt77 on Jun 20, 2018 1:07:48 GMT
As regard adding oil to steering rack :- it was a recommendation back in the day, but is not really necessary .. a good quality synthetic grease works better.. and does not rot the boots out and drip on the garage floor like oil . one tip if you ever take the rack apart for a rebuild or major service is to use motor honey ( STP or similar) as the assembly lube .. steering racks dont need much in the way of lubricant.. and gear oil is overkill and will leak out.. a few pumps with a grease gun on the nipple every year or so will keep it lubed..
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kiwimc
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Post by kiwimc on Sept 6, 2021 21:08:19 GMT
So a full spline is 1.5"... Does anyone know what the rear adjuster gives, e.g. 1/8" per turn John
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Post by canuck on Oct 13, 2021 12:30:40 GMT
I thought I should add some technical information to this . Yes adjusting a spline on the torsion bar is 1.5" of drop or raise. When one drops the spline it is best be aware, that IMO this is too much for road use? See below; I show a photo of my car during its current ' rehabilitation'. The wing is off, the OE bump stop was rusted out, so renewal is required. This new bump stop, purchased from club spares, is a reasonable facsimile of the factory part. What is important to note is the space between the bump stop and the suspension. Not a lot of room for suspension travel and I quite obvious will need to adjust the height accordingly. This final height trim will be done from the rear end of the torsion bar. These are relatively simple cars that do need attention when we undertake modifications. Salut B
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kiwimc
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Post by kiwimc on Oct 17, 2021 20:56:10 GMT
I've adjusted the rear ride height with 1/2" (Series III) spacers and trimmed the front (torsion bar adjustment screw) to even L & R sides. 11 mm difference unladen between front arm inner and outer centres as per Series III in Workshop Manual. This puts the height of torsion bar centre at 235 mm. My chrome waist strip to wheel centre distance is 510 mm (795 mm off the ground)??
Checked out the bump stops... One has 36 mm clearance the other around 25 mm, despite the car sitting level.
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Post by canuck on Oct 19, 2021 15:02:21 GMT
I've adjusted the rear ride height with 1/2" (Series III) spacers and trimmed the front (torsion bar adjustment screw) to even L & R sides. 11 mm difference unladen between front arm inner and outer centres as per Series III in Workshop Manual. This puts the height of torsion bar centre at 235 mm. My chrome waist strip to wheel centre distance is 510 mm (795 mm off the ground)??
Checked out the bump stops... One has 36 mm clearance the other around 25 mm, despite the car sitting level.
John, This is great. Odd that the bumpstops are different measurements. Perhaps one of them is a different part than the other? i think these bumpstop rubber bits are Riley specific and NLA new. I did try some MM ones but these not the same. The wing trim to wheel center height is a good way to measure. I will shoot for that when I get near my car again. B
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kiwimc
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Post by kiwimc on Oct 20, 2021 1:54:05 GMT
Hi Bruce, 1. the bump stop clearance: I had forgotten to do the obvious and measure the bump stop lengths themselves. Now I have, I see the ca. 11 mm clearance difference is because one is 10 mm shorter than the other. Doh! The two from the Series III parts car measure 60 mm and the two currently on the car are 50 & 60 mm respectively. Not sure what the 50 mm one is off, but it seems the way to go if I can find a match. 2. You obviously have access to the factory manual. I also have the Olyslager (Sunday Times) book. In this the rear ride heights are identical, but front is given as 9.1" instead of 9.4". Have you noticed in the factory workshop manual (Section KK Front suspension), units change randomly between imperial (both proper and decimal fractions) and metric (cm and mm).
3. For the ride height (Workshop Manual RR29) there are so many variables: wear in multiple bushes front & rear, spring set, tyre height (and inflation) and presumably how 'saggy' our torsion bars are.
Like you I am pretty happy with how the car is sitting now. Have the readers worked out we are carrying this conversation out concurrently on two forums (fora?) Did you get my email?
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