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Post by glennr on May 22, 2009 16:54:42 GMT
I made an enquiry for Nylon Shims for the rear leaf springs. The shims would be-
For 500 off £1.40 each + carriage + VAT
For 1000 off £1.20 each + carriage +VAT
I don't think I will bother.
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Post by Phil Nottingham on May 22, 2009 19:04:14 GMT
Again another one for the club to use a little of its big cash reserves on which are earning hardly any income? Members would of course get a favourable rate
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Deleted
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Post by Deleted on May 22, 2009 19:35:54 GMT
Very valid point and I think this is one of the most important things that a car club can do for its members if it has the reserves.
Perhaps there is too much financial hand-wringing about the longer term rather than ensuring we have sufficient parts to keep our cars on the road.
Why should we line the pockets of JRW if we need renewables when the club has over £44000 in current assets including nearly £15000 in the bank!! There are some items which are crying out for remanufacture and suspension bushes is one. The club would also have some control over quality.
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Post by Warwick on May 24, 2009 23:30:38 GMT
Miguel,
Have you had a chance to evaluate the Holden shims, with regard to installation?
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miguel
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Post by miguel on May 25, 2009 0:58:50 GMT
Hi Warwick, Not yet.Havent had time, but this week I'll post photos. Warwick, very generously, sent me the Holden shims that he purchased for the rear springs. The purpose is to evaluate if they are a good alternative to replace the old shims. I've got one spring ready for rebuilt so I'm going to take photos and hear your opinions.
Miguel
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Post by Warwick on May 25, 2009 6:54:13 GMT
Thanks Miguel. I'm looking forward to your evaluation.
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Post by glennr on May 25, 2009 10:50:15 GMT
Me too!!
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miguel
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Post by miguel on Jun 7, 2009 20:53:42 GMT
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Post by Phil Nottingham on Jun 7, 2009 21:16:50 GMT
I doubt if either nipple diameter or overall diameter would make much difference even though its quite a bit and they would be better than nothing in new springs as the hole could be drilled to match before tempering. In old springs some nylon solid piping would hold them tight?
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miguel
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Posts: 462
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Post by miguel on Jun 7, 2009 23:40:24 GMT
One idea... If I replace the old shim and drill a hole in its centre right the diameter of the nipple of the new one I would hold it tight. I would also increase the thickness of the shim, now beeing 2 . Is this too much? or really necessary? Would this also bring any inconvenience when assembling... the increase of thickness can put too much strain in the bolts that keep the leaves together?
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Post by Warwick on Jun 8, 2009 5:52:16 GMT
Thanks Miguel,
It would have been a couple of years before I got around to trying them. Your old ones look quite good. Are they all like that? Not much wear at all.
Mine, and the spare pair, have virtually nothing left of the discs. They are either missing, or tissue-thin, or adrift.
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miguel
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Post by miguel on Jun 13, 2009 16:15:14 GMT
Well decided to keep the original ones. They are good indeed. So if anyone is interested in the new shims I'll be glad to send them, free, courtesy of Mr. Warwick from Australia. Its a complete set (16). Here is one refurbished: My old spring sleeves are so dry that I broke them to take them out. It looks like vinyl but its like hot glued in its limits, so is it really vinyl? I do want to keep the original look so I'll make new ones.
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Post by Phil Nottingham on Jun 13, 2009 17:38:27 GMT
Its "Leathercloth" or what is now knit-back vinyl - black. Leather is best
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Post by glennr on Jun 14, 2009 8:20:51 GMT
Well decided to keep the original ones. They are good indeed. So if anyone is interested in the new shims I'll be glad to send them, free, courtesy of Mr. Warwick from Australia. Its a complete set (16). Here is one refurbished: My old spring sleeves are so dry that I broke them to take them out. It looks like vinyl but its like hot glued in its limits, so is it really vinyl? I do want to keep the original look so I'll make new ones. I have sent you a PM Miguel.
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Post by eisdielenbiker on Jun 15, 2009 8:55:45 GMT
Miguel, did you keep the original rubber bush of the front eye ? Mark
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miguel
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Post by miguel on Jun 15, 2009 17:06:16 GMT
Yes I did. They are in good shape. I dont know where to get new.
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Post by Warwick on Jun 15, 2009 23:46:22 GMT
They aren't available in Australia. Scott doesn't have them.
Perhaps you could find the answer to a question for me Miguel. Being an engineer and having a car that will soon be in excellent condition with good springs, you are probably in a good position to take some measurements and figure this out.
Why is the bush eccentric? (No, not because it's English)
Is it simply to put more rubber where the load is carried?
Or, is it to allow the spring to lengthen slightly as the bush and eye rotate when the spring is deflected upwards, thereby taking some of the rearward force off the rear Y-mounts?
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miguel
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Post by miguel on Jun 16, 2009 19:29:08 GMT
One of the things that engineering teaches us (by theory and practice) is that almost every asymmetry or eccentricity is designed to deal with effort, work, strain, etc.. This is to say that I think your first option is more logic. Put the bigger part of the rubber where it will have to work more. And you give the answer in your second option: in fact the spring, when deflected upwards, do not length. It retracts due to the counter curve introduced so the movement and strain is done inwards to the center of the spring. That's why the eye of the bush is so eccentric. The rear Y mount has a more vibration design purpose. This is the theory of an amateur so if I'm completely wrong, please do correct me. Miguel
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miguel
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Post by miguel on Jul 12, 2009 17:36:57 GMT
Finished the rear springs. Wrapped them in Denso tape, and fited the sleeves just for keeping the original look.
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Post by Phil Nottingham on Jul 13, 2009 9:30:11 GMT
They do look good and should last for years
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Post by mcgill on Jul 31, 2009 14:18:10 GMT
as you can see,im now on the springs and have a couple of questions, did you grease them b4 the denso tape,and is graphite grease the best,?is it ok painting them,i had visions of the paint burning rubbing? as for the nylon shims,all but 2 on each spring are excellent.. My son(whos 12) came up ( whos been flap wheeling the springs clean )with a novel idea,couldnt we remake the shims from mums tupple wear boxes,and with strong glue,glue the old nipple on ? i was impressed,until the only strong glue we had was the cyranite stuff,and stays wet when on nylon
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Post by Phil Nottingham on Jul 31, 2009 15:45:13 GMT
No point painting them if greased properly and wrapped in Denso. Graphite grease is ideal.
Good idea about Tuper ware although its not Nylon and the plastic is difficult to glue successfully due it its content and flexibility - a solevent based glue would be needed to "melt" the two together.
The main leaf is worn BTW and will be weakened although bbreakages usually occur near the centre at teh side the of the corroded areas
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Post by mcgill on Jul 31, 2009 16:44:03 GMT
cheers phil,the main spring ,is that the bottom spring in the picture,and the worn bit noticed by the line/step about 8 inches down the spring?if so my boy managed to smooth it off,incase it stopped the spring sliding,(appriciate you pointing that out) they were all stuck together like one big spring,caked in dirt which had made its wayunder the leather/vinyl gators which were still there but torn,been soaking for weeks with wd40 and wire wheel.after they had been cleaned off today,they look a preserntable grey colour.was going to take pics but batteries went. the axle came up well,everything was caked in old underseal and mud,coulnt tell the difference at first
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Post by Phil Nottingham on Jul 31, 2009 17:24:24 GMT
The main spring is the top one ie has the spring eye and the rubber Y bush at the other end. The other leaves just prevent over bending it. It does need to slide as you say but also the other leaves can make a line under the leaf above it so it is important these are also smoothed out to avoid clicking and clonking noises and reduce stress points to stop cracking
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Post by mcgill on Jul 31, 2009 17:38:35 GMT
i shall check for more lines in the leaves...as for the shim and tuperware project,ive found out that the polyuethane or polyproperlyne is grief to glue but plastic welding is the way to go.... im borrowing my neighbours plastic welder he uses to fix bumpers,and going to cut up the wifes tuperware...weld the nipples on and see how strong it is..... thanks again for the tips..
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