Bit of a departure from the norm for me

The Home of any non Mini projects & discussion.
Post Reply
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

For no reason other than corrosion. The steel is pretty thin and pitted so I'll need to keep an eye on them to make sure they don't distort otherwise I'll retain the original setup. I avoided adjustable dampers for this reason, just trying to keep it as stock as possible.
andy1071
Posts: 233
Joined: Thu Mar 24, 2011 9:04 am
Location: Sweden

Re: Bit of a departure from the norm for me

Post by andy1071 »

The Elan chassis are known to be fragile.... (who'd have thought so with Lotus...!! :lol: :lol: )
So I would tend to stay with original, in the 'hope' that they will buckle before the chassis does
It is known that you can buckle the chassis by hitting a pothole... -We have much bigger potholes these days.... :roll:
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

I agree. As a sacrificial part in an impact I'd rather replace a wishbone then a chassis so will retain the originals. New top arms to original design are available but the new bottom arms seem only to be manufactured from tubular steel and are a lot more substantial than the OEM parts so I'll be "steering" clear of these until I really need to replace mine.
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

New engine bay harness is the next task, should have been a simple swap however I have now discovered that it has been rewired before but not to the factory wiring diagram so taking a lot longer tracing all of the circuits and basically creating a bespoke diagram.
You do not have the required permissions to view the files attached to this post.
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

Rear end disassembled now and ready for refurb'. It has been converted to UJ shafts previously, contemplating returning it to stock with Rotoflex couplings however as we all know the quality of such elastomer parts these days is questionable so maybe not a good idea (and they're not cheap either). I've been reading up on the UJ conversion, seems it may cause issues with the sliding joint splines locking up under torsional load therefore not sliding hence the shaft can no longer achieve the correct length with really bad handling as a result. However this appears to be with the suspension at full travel (either extremity) under race conditions so hardly an issue for me. A CV shaft conversion is outwith my budget so it's either keep it as is (I've never driven it so can't comment on how these shafts perform) or go back to Rotoflex with the issues well known for these.
You do not have the required permissions to view the files attached to this post.
User avatar
Pandora
Posts: 3000
Joined: Thu Jun 24, 2010 8:01 pm
Location: Dunfermline, Fife

Re: Bit of a departure from the norm for me

Post by Pandora »

Personally, I'd stick with the 'updated' parts you have. The limitations you mention are no greater an inconvenience than the torque wind up that the originals are famed for, but the UJ's are a lot less likely to fail than the Rubber couplings, especially the modern ones.

If you are looking at RCs, my memory is that the proper ones have a steel piece between each pair of mounting holes, effectively bifurcating the length of the rubber sections into smaller sections, making it stiffer. I think Imp ones might fit, but they have just the single piece of rubber between the holes, so they allow for more wind up. (or something like that!)

Al
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

Thanks Al,
I've been searching through posts on Elan.net on the subject, the Imp couplings are mentioned but nothing definitive. I even contacted Robush who manufacture the Rotoflex but the prices were very high, much higher than retail from the usual suppliers that would suggest they are being sourced somewhere far cheaper and presumably lower quality. My UJ setup appears to be a DIY affair, not from one of the Lotus specialists, indeed I managed to contact a previous owner from the 70's and he asked if it still had the modified Triumph 2.5 shafts on it that he fitted so I'm assuming these are what are still on it. I will probably use these as my budget won't stretch to a CV joint setup. I need to replace the discs but can't do so without pulling the hubs off and apparently that's very difficult without the correct tool so I'm a bit stuck just now. If any of your Lotus contacts know where I can have this done "locally" it would be handy. I was going to give Chic Doig a shout but haven't spoke with him since he moved from Cardenden. He's handier for me now near Perth so I'll probably take the hubs down to him.
andy1071
Posts: 233
Joined: Thu Mar 24, 2011 9:04 am
Location: Sweden

Re: Bit of a departure from the norm for me

Post by andy1071 »

The original (early car) Doughnuts were Imp parts...
The parts fitted later are the Imp competition doughnuts, which are the ones Al mentioned, with the in steel "interleaf".
-When I used to buy them, they came in 'Imp' packaging...

But as you say, stick with what you have.
And use a good moly-grease (or similar) on the splines to reduce friction as much as possible..
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

Thanks. On closer inspection it seems both of the hub carriers have had questionable repairs done in the past to the caliper mounting flanges so it looks like I'll need to replace them. This will definitely blow the budget out of the water therefore I will definitely be retaining the existing UJ shaft arrangement. All I need now is for the wishbones to be bent and I'm on a roll :cry:
User avatar
111Robin
Posts: 2178
Joined: Mon Dec 19, 2011 8:59 pm
Location: Aberdeen Scotland

Re: Bit of a departure from the norm for me

Post by 111Robin »

Bodgetastic!!!!. Some PO has "repaired" the caliper mount by screwing a plate to the housing and "welding" it to the caliper flange. Needless to say this housing is going in the scrap bin. F'n monkeys.

Rather than just scrapping it I've given it to an Ali welding specialist to hopefully undo the bodge and reinstate a full strength repair.
You do not have the required permissions to view the files attached to this post.
Post Reply