Replacement bushes

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Replacement bushes

Postby Saltire » Tue 09.10.2018, 12:33

Morning all, I’m in the process of a suspension and brake overhaul (pictures when I can post them). I’ve ordered a complete set of new bushes from SJs, and they’ve all come in a bag together, with no identification. Does anyone have any dimensions for the bushes please, so I can tie up what goes where. The old ones were mostly destroyed getting them out.

Thanks
Jonathan

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Re: Replacement bushes

Postby Bern » Tue 09.10.2018, 19:51

I had exactly the same problem!

I found that it was reasonably obvious which ones went where, when I came to fit them.

I think I also found that there are 2 bushes for 2 different locations that have different part numbers but are actually the same. IIRC I emailed SJs to check!
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Re: Replacement bushes

Postby HJ2 » Wed 10.10.2018, 08:06

Might I dare to ask how much you were charged for the complete set?
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Re: Replacement bushes

Postby theelanman » Wed 10.10.2018, 10:09

you should have SJ01/02 and 03
IRC 01 is for the front
02 is for the rear outboard and 03 is rear inboard
the wishbone bushes are 2 part mushrooms with a central tube

thats all I know of the S and J ones.......ask Sand J Im sure they'll tell you.......or if not
ring powerflex..........they make them
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Re: Replacement bushes

Postby Saltire » Wed 10.10.2018, 20:30

theelanman wrote:you should have SJ01/02 and 03
IRC 01 is for the front
02 is for the rear outboard and 03 is rear inboard
the wishbone bushes are 2 part mushrooms with a central tube

thats all I know of the S and J ones.......ask Sand J Im sure they'll tell you.......or if not
ring powerflex..........they make them

Thanks, Gareth. I managed to get mostly OEM bushes, and it’s those which are causing me some problems. The poly ones are fairly straightforward. I’ll probably end up calling James or Katy at SJ, but I thought I’d ask here first.
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Re: Replacement bushes

Postby Saltire » Wed 10.10.2018, 20:33

Bern wrote:I had exactly the same problem!

I found that it was reasonably obvious which ones went where, when I came to fit them.

I think I also found that there are 2 bushes for 2 different locations that have different part numbers but are actually the same. IIRC I emailed SJs to check!

Thanks, Bern - good to know it’s not just me. We will probably suck it and see as you suggest; shame we had to break so many removing them, but at least it proved they did need changing!
Jonathan

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Re: Replacement bushes

Postby Saltire » Wed 10.10.2018, 20:34

HJ - I’ll have to look it up because there were lots of other things on the order. I’ll PM you when I get a moment.
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Re: Replacement bushes

Postby Giniw » Wed 10.10.2018, 21:13

(most OEM are still available? Interesting to know)
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Re: Replacement bushes

Postby Bern » Wed 10.10.2018, 21:17

Saltire wrote:
Bern wrote:I had exactly the same problem!

I found that it was reasonably obvious which ones went where, when I came to fit them.

I think I also found that there are 2 bushes for 2 different locations that have different part numbers but are actually the same. IIRC I emailed SJs to check!

Thanks, Bern - good to know it’s not just me. We will probably suck it and see as you suggest; shame we had to break so many removing them, but at least it proved they did need changing!


Ah, mine were mostly Poly, I suspect that made the trial and error easier for me!
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Re: Replacement bushes

Postby Brit-Car-Nut » Wed 10.10.2018, 21:55

Giniw wrote:(most OEM are still available? Interesting to know)

Certainly not from Lotus. Most went obsolete years ago. Several of us owners dug into finding the original supplier to try to move forward with replacements, but the company was absorbed by Michelin and they do not have the information or the desire to do anything to help.

FGS was making rubber rear wishbone bushes for their galvanized products, but they are now using poly bushes as far as I have heard.

SJs and SW Lotus knew they were running low at Lotus and grabbed as much as they could, so they have some of the rubber bushes, but the most common ones are no longer available anywhere as best as I can see.

If someone will put together a list of part numbers, I will gladly look them up in the October 2018 Factory Parts Book and add the availability from Lotus as well as the date of obsolescence.

It would be best to build the front end list and then the rear end list so people can better figure out what they need for either end.

I will eventually get around to making the list, but right now I don't have much time.

I have at least one of every rubber bush needed that I have been talking to several short run companies to make us replacements. The trick is getting the correct SHORE value for the rubber that was used.

Unfortunately, most of the bushing industry moved to China and India and without having an agent to keep things moving, it could be a huge money pit.

I found a few newer "small companies" in the current Thomas Register when was searching yesterday (the original post woke me up), so I will be calling them to see what is available to us.
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Re: Replacement bushes

Postby dapinky » Wed 10.10.2018, 22:11

John,

There appears to still be a problem with document uploads to the forum, but if you go to this post viewtopic.php?f=41&t=26848&p=343143&hilit=bushes#p343143 I attached a list of bushes for Jonathan..... the prices are 4 years+ old, but the part numbers are the relevant information.
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Re: Replacement bushes

Postby Brit-Car-Nut » Wed 10.10.2018, 22:22

dapinky wrote:John,

There appears to still be a problem with document uploads to the forum, but if you go to this post http://forum.lotuselancentral.com/viewt ... es#p343143 I attached a list of bushes for Jonathan..... the prices are 4 years+ old, but the part numbers are the relevant information.

Thanks. Saves me a lot of transcribing...
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Re: Replacement bushes

Postby Brit-Car-Nut » Wed 10.10.2018, 22:47

Of course, I can't post a picture or spreadsheet. This is the raw data. If anyone wants the actual file, email me and I will send it to you

To see where these came from, In Parts Guide S2 (manuals link at bottom of post), the illustration is Section 31.01A, Page 195
The details are on page 196, 197 & 198.

These are OLD prices from SJs

Front Suspension Bushes..............I know the SE and S2@/FED used different lower RAFT bushes, so research should be done before just jumping.

Illus #.....Part #....Qty Req....Description.....................Lotus................................SJ
36... ..C100C6003F.....4......Wishbone Bushes...........OBSOLETE 17/01/17...................£1.19
42.....D100C6018F.....4......Top Raft To Chassis.........NO LONGER SERVICED (12.03.15).....£6.66
50.....C100C6006F.....4......Flanged Raft Front..........NO LONGER SERVICED (24/10/13)....£6.64
51.....D100C6001F.....2......Lower Raft Rear.............NO LONGER SERVICED (22.06.16).....£12.58
61.....E100C6002F.....8......Lower Wishbone............RING FGS 01243554422.................£14.50 You get a pair at SJ
80.....D100C6005F.....2......Lower Wishbone Pivot.....NO LONGER SERVICED (14.06.16)......£11.95

NOW, let's do the rear bushes.
Last edited by Brit-Car-Nut on Wed 10.10.2018, 23:05, edited 4 times in total.
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Re: Replacement bushes

Postby Simon_P » Wed 10.10.2018, 22:56

Fairly straight forward.
4x Upper wishbone bushes have an interleave - seen as a hard ring in the rubber
Lower wishbone bushes you can't get rubber.
4 x front raft bushes no interleave
4x upper raft bushes identical to above but longer
2 x rear raft bushes - big fat ones
2 x damper bushes tubular no top hat
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Re: Replacement bushes

Postby Simon_P » Wed 10.10.2018, 23:34

Reading John's post you may want the rear as well.
4x lower inner are the same as front and not available in rubber. There were 2 grades of rubber, but if you are using Poly it is irrelevant. Unless the rubber is knackered leave be.
4 x Outer wishbone - massive top hat bush
4 x top link - tubular non-tophat
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Re: Replacement bushes

Postby M100TURBOFR » Fri 12.10.2018, 10:32

Hello
Have Word file with info on bushes, but cannot upload it. It says "File is empty". Any ideas?
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Re: Replacement bushes

Postby John_W » Fri 12.10.2018, 10:43

For the past few weeks, there has been a problem uploading photos and files to the forum. Everybody gets the same error message as you.

I guess we just wait ... :?
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Re: Replacement bushes

Postby Brit-Car-Nut » Fri 12.10.2018, 13:12

These came from Parts Guide S2 (manuals link at bottom of post), the illustration is Section 31.01A, Page 199
The details are on page 201, 201 & 203.

Rear Suspension Bushes
Illus #......Part #......Qty Req.......... Description.................................Lotus
30... B100D6018F..... 4.....Bush - Top Link............................NO LONGER SERVICED (28.04.15)
65... E100C6002F..... 4.....Bush - Lower Wishbone Inner FWD.....RING FGS 01243554422
66... B100D6019F..... 4.....Bush - Lower Wishbone Inner REAR....RING FGS 01243554422
67... D100D6002F..... 4.....Bush - Lower Wishbone Outer...........OBSOLETE (02/01/13)
91... A100C0038F..... 2.....Isolator, Spring/Damper to Chassis....NO LONGER SERVICED (19.02.16)
92... A100D6020H.... 2.....Bush, Rear Damper Lower..........................£34.61

M100TURBOFR: If you have a Word File and it is not heavily formatted, you could copy and paste it to the post like I have done.
Or you could email it to me and I will either host it and provide a link or cut/paste it for you
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Re: Replacement bushes

Postby Saltire » Mon 22.10.2018, 14:52

Many thanks for all the assistance with the bushes. All now sourced and in the process of being installed - except for the rear anti-roll bar drop link bushes which are not shown in the parts list and I've had to source separately from SJs :oops:

I'm now building up the raft assemblies off the car. On the upper raft pivot, there's a locknut each end behind the nyloc (item 38 on the diagram below):

Raft diagram (Custom).jpg


When I do the locknuts up tightly, the upper pivot is very stiff compared with the lower. Is there a preload or torque setting for the locknuts on the upper pivot (can't see one in the workshop manual), or is it really meant to to be that stiff?

Thanks everyone!
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Re: Replacement bushes

Postby Simon_P » Mon 22.10.2018, 18:38

There should be only one locknut (38) and 2 nyloc nuts (39) on each side as per the diagram. Having a locknut at each end is wrong - Follow the WSM. The idea is to clamp all of the steel centre parts up tight. If you have watched the youtube video ignore the comment about the pivot rotating, that is wrong and it would wear out quickly. The copper slip is to prevent corrosion.

There is a torque setting in the front of the WSM section TDH P.7, and yes it is meant to be that stiff (the interleaving in the rubber is to make it stiffer). If you have the interleaved rubber bushes it is important to tighten it in the correct position, otherwise you will preload the rubber.

Polybushes aren't bonded the the centre tube so they will rotate freely and the millions that Lotus spent on ride and handling is lost.

Follow the WSM and you won't go far wrong.
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