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Suspension bush options - old style, damper programme ?


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  • Gold FFM
7 hours ago, sailorbob said:

On the later wishbone the rear bush is a single parallel item (standard part no. A075C6000Z, polyurethane part no. LOTAC05454) and the front bush is a split, two piece, conical item (standard part no. A082C4250F, polyurethane part no. LOTAC05458).

Hi sailorbob, these are the rear lower links on the back of the car, not the wishbone

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absolutely do not put a hammer anywhere near those rear hubs. swear words to an absolute minimum - kid gloves on. I use the cut either side of the lower link method and drop that out. Then use nu

Collar now out, used a socket and washers and lots of heat to press it out by about 5mm and then used mile grips to crush it together and turn it out 💪🏻

The Lotac bushes will bring handling back to factory spec as those bushes are engineered (incl testing and design) to replicate those original characteristics. Well-worn rubber ones will obviously be

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4 hours ago, Mightymetro said:

Hi sailorbob, these are the rear lower links on the back of the car, not the wishbone

Sorry, calling them 'rear stabiliser bars' was getting me confused and I thought you were meaning part of the wishbone.

The bushing ends of the rear lower links are CDS tubes having an outside diameter of 38.1 mm and a 3.25 mm wall thickness.

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  • Gold FFM

So, I’ve hopefully got to the bottom of this and it seems Lotus maybe considered using conical bushes on all the rear suspension at some point in time for the facelift in 1997 and used my car for his.  All my rear suspension components that should use parallel bushes have taper bushes and sleeves.  The measurements all match the conical type that you can fit in the front wishbones.  The bad thing is now that I have to buy all new suspension links etc as I already have the bushes and there must be a reason Lotus didn’t stick with this design.  Grrrrrrrrrr

 

 

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  • Gold FFM

Next question (but I’m definitely  getting there even though nearly everyone I have used to do any jobs have let me down which is extremely frustrating!!!!)

just wanting to order a few final assembly washers etc and wondered what the difference is between c level and d level radius arms 

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  • Gold FFM

Bits back from the 3rd place I’ve tried For blasting.  All blasted clean and they all look in good condition.  Tomorrow I’m taking them to Lancaster for Zinc Nickel plating and then hopefully get them back on in the new year.  Nice to see some movement.

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  • Gold FFM
On 19/12/2019 at 18:58, Mightymetro said:

Bits back from the 3rd place I’ve tried For blasting.  All blasted clean and they all look in good condition.  Tomorrow I’m taking them to Lancaster for Zinc Nickel plating and then hopefully get them back on in the new year.  Nice to see some movement.

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Hi @Mightymetro what finishes have you chosen for the various bits and pieces? All powder coated or any metal plating going on? When do you expect to get it back? Hopefully that is not a sore point, I know you had suffered some delays in this department.

cheers

-Chris

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  • Gold FFM

Ha no problems Chris, I’m hoping the next 12 weeks will see some serious progress once I get back from holiday which I am using to pacify the other half!!!!  If only lotus parts were this cheap 😂

 

none of it is going to be powder coated after concerns about longevity with stone chips etc and I can attest to this have to restoring my old Daytona 955i

 

i decided on zinc nickel plating which is a modern take on zinc plating which is what I think most of the bits were to start with.  I think it’s a 80/20 split between zinc and nickel and has much better corrosion resistance than just zinc.  The downside is that the finish will not be as ‘bright’ as pure zinc but the parts aren’t seen anyway.  The nearest places to me were 100 miles away to have this done !!!!!!!all the local and semi local firms, including some big names locally said they had never heard of it. 
 

also I had to buy new stabiliser and top arms from SJ Due to my ‘experimental’ parts which come zinc plated but I’ve sent them for zinc nickel plating too 
 

im due to collect on the 13th so will update then.  Hopefully it’s January..........

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  • Gold FFM

Suspension parts back from the platers.  I was told that it wouldn’t be a good finish like just Zinc and they might not be to everyone’s taste but I just told them I wanted them as corrosion resistant as possible so these are zinc nickel with passivate.  New Lotac bushes fitted (I got a local motorsports company to remove and fit them and they turned up some sleeves to help fit to avoid damage).  
 

picking up the rear upper and lower links today as they had to make a tapered sleeve to get the Lotac bushes in and ran out of time yesterday
 

new SKF wheel bearings all round

every Nut, bolt and washer is new and new split bushes for the rear aluminium uprights. 

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  • Gold FFM

I actually prefer the look to the more shiny zinc plated. 👍

I have made many mistakes in my life. Buying a multiple Lotus is not one of them.

 

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  • Gold FFM

So, let down again by another ‘professional’
 

fitted the front Lotac bushes and pressed in and all seem ok (apart from one of the circlips) not seared correctly but I’ve sorted that

left him the bushes to fit and he said that he was struggling with the rear bushes So give him a day or two and he will knock up a sleeve and sort it.

got a message to say he hasn’t really got time to sort them so I said I’ll do them myself.  My wife picked them up in a box and brought them home.  I opened the box today and he seems to have completed one of the upper tie rods but on inspection it looks destroyed as one side has the metal insert on an angle, I’m not sure if you can see the photos.  One on the left is the one I did this morning, one on the right is his effort.  Sparky has very kindly lent me his bush tool and I’ve started fitting them at home.  The tool is fantastic and  I started putting the bushes in which takes about 5 minutes a side and I come to the last one and it looks like he has been trying to fit it..........with grease........and it’s absolutely knackered and split.  Absolutely fuming .  So, that’s two new bushes I need.......

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Bugger.  Yup, likely they're the ones he tried without the tool.

British Fart to Florida, Nude to New York, Dunce to Denmark, Numpty to Newfoundland.  And Shitfaced Silly Sod to Sweden.

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  • Gold FFM

Ah man, that sucks, I do feel for you. Can you be bothered to let him know the mess he's made and present the bill for two new bushes?

cheers

-Chris

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  • Gold FFM

It’s me that’s using the tool.  He said he was going to make one !!!!and then clearly wrecked those and though fuck it and told me he didn’t have time.  He has a lathe so it’s not like he couldn’t make one.

 

tool is fab Gary 👌🏻.  I’m only in my home garage with a vice, some threaded bars and washers etc and they are really easy to get it 👍🏻
 

hoping to get 2 new ones for tomorrow so I’ll get them in tomorrow night and send it straight back t you if that’s ok

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No worries at all mate, take your time!

British Fart to Florida, Nude to New York, Dunce to Denmark, Numpty to Newfoundland.  And Shitfaced Silly Sod to Sweden.

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