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19th April 2018, 23:09 | #21 | |
MG ZT Join Date: Jan 2011
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Quote:
My concern is the drop link is likely to foul the oval hole in certain positions of suspension travel if left unchanged. As I said earlier both times I've done this job before, the cars in question didn't have an ARB fitted, so this may have gone unnoticed. |
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20th April 2018, 05:38 | #22 |
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20th April 2018, 14:27 | #23 |
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Here are the pictures of the offending arm alongside an old one for comparison.
Apologies for the picture quality, however it can be seen that the ARB mounting is not central, and the spigot in the spring cup is too close to the centre of the arm, meaning it is riding up on the radius of the cup. Also it was not possible to fit the isolator while it was attached to the spring, hence the isolator being fitted on it's own. I'm hoping this is a batch issue, and not a common denominator, as I'm not prepared to fit these to my car. Brian |
20th April 2018, 14:37 | #24 |
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Ignore, it's OK now.
TC |
20th April 2018, 19:47 | #25 |
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Having just purchased a pair of these I have contacted Nick at ECP and he will be contacting Xpart on Monday for an answer, He did say they have sold in excess of 500 pairs with no issues / complaints.
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20th April 2018, 19:54 | #26 |
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Intersting thread. I will nip under the car tomorrow to look at the new one fitted that were obtained via Nick as well.
Saying that turbo dave made no comments when they were fitted |
20th April 2018, 20:07 | #27 |
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Next time I’m under my car I need to check my arms that I fitted late last year. I don’t remember an issue with the spring in the cup but I’ve been having issues with the drop links I fitted at the same time and just renewed them again to cure a knock. I was blaming the drop link supplier
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20th April 2018, 23:53 | #28 |
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Well I've had a chance to do some measuring, and this confirms what was said in conversation with Gary Nelson earlier.
The distance between centres of the inner pivot bolt bush and the outer rose bush mounting are the same as the originals, and that of the upper drop link mounting. Also the distance from the centre of the spring isolator spigot to that of the inner bush centre is the same. What differs in the dimension of the spring cup, and the position of the oval clearance hole where the drop link passes through the arm, so apart from the creation of a possible water trap under the isolator due to it not seating fully in the cup, which can be rectified by removing 5mm from the outer diameter of the isolator, something I will have an experiment with tomorrow, and the possibility of any axial play in the antiroll bar, which may result in contact between the drop link and the inboard part of the oval hole. In any case, I am going to cut off the brackets from the new arms, rework them slightly, then reweld them, simply because they are not parallel with one another due to the fact they are fitted into the reducing part of the oval. I've another set of used arms, obtained from a low mileage ZT 180, these have been sandblasted, treated with Kurust, zinc primed, and given five coats of chassis black, before being ladled internally with lashings of cavity wax, so these will be fitted to the car instead, and the shortcomings in the new arms addressed when I have a little more time. Perhaps I'm being a little too fussy Brian |
1st May 2018, 21:01 | #29 |
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I've fitted a pair of refurbished second hand arms to one of the cars requiring new arms, however something new was discovered today
So what do you think of that development? Brian |
1st May 2018, 21:10 | #30 |
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It's an exceedingly good upper wishbone?
I know, coat, then door. |
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