Lotus Elan

My Plus two again

PostPost by: Woody7 » Sat Aug 22, 2020 6:32 pm

Hi guys, it’s me again (sorry)
My much-modified plus two chassis has another problem! Just wondering if anyone has had this issue? The front offside tower is not at the right angle so some previous owner, in their wisdom, has decided to re-drill the top wishbone to pull the hub/wheel straight but because of the angle, they have only managed to get one bolt in. I can’t believe what some people do! But, anyway, back to the question, I need to put the tower back to the right place. Does anyone know where to take measurements from? I probably need to move over around 3/8ths? Any ideas welcome please!!! PS. Please don’t tell me to buy a new chassis - that’s not an option.
Thanks, Woody.
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PostPost by: Elan45 » Sat Aug 22, 2020 9:22 pm

The shop manual has drawing of the chassis with dimensions.

Roger
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PostPost by: wotsisname » Sat Aug 22, 2020 10:02 pm

I wonder if even a second hand chassis may offer you a better experience. obviously budgets are what they are. Good luck which ever direction you go.
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PostPost by: Woody7 » Sun Aug 23, 2020 8:05 am

Thank you for your comments. I was just hoping someone had been there and got round the problem, probably would be best just to scrap this chassis and start again.
I bought the car because the chassis had been all done and looks really good, with extra bracing; this was done by a professional guy, so with the rear end mess-up and now this, I think I have a big issue. Why would you not check the chassis is straight before doing so much work which one of the previous owners paid to have done. The car has been sold on a couple of times since but has never been finished, so maybe they all came up against this and just sold it on.
Anyway, sorry for the rant! and thanks again for your replies. I will take a photo and pop it on just in case someone has a easier solution.
All the best, Woody :lol:
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PostPost by: Wayne » Sun Aug 23, 2020 3:34 pm

Hi Woody,

My listing for Plus2 control arms might give you a low dollar solution to play with. viewtopic.php?f=33&t=47470&p=342780#p342780

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PostPost by: gus » Mon Aug 24, 2020 12:49 pm

As always, pics help

TO repair the chassis, it has to come out. Not that bad a job and can be done in the driveway if necessary
The reason for the error is most important, as rust causes towers to move
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PostPost by: Woody7 » Tue Aug 25, 2020 5:42 am

5DFDCC54-3C36-4D52-BA3D-9DC93B7A2D22.jpeg
Body now back off
5DFDCC54-3C36-4D52-BA3D-9DC93B7A2D22.jpeg (83.48 KiB) Viewed 672 times
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PostPost by: Woody7 » Tue Aug 25, 2020 5:49 am

CBE084B1-669D-46D8-992D-A88C44BA4256.jpeg
CBE084B1-669D-46D8-992D-A88C44BA4256.jpeg (87.78 KiB) Viewed 672 times
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PostPost by: Woody7 » Tue Aug 25, 2020 6:01 am

Thanks Gus
body is now off - seems tower has been repaired well but in the wrong place. If you fit the stub axle back in the correct place then it sits at a positive camber, once pulled back in the correct position is there room to fit a brace (engine is back)?
Woody
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PostPost by: Woody7 » Tue Aug 25, 2020 6:04 am

Hi Wayne thanks for the offer but in UK
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PostPost by: gus » Tue Aug 25, 2020 10:50 am

Show us pics of the chassis tower

From the front , and from the top with enough perspective that we can see if the pin is twisted or not
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PostPost by: Woody7 » Wed Aug 26, 2020 4:56 pm

B5B8DB64-BF64-4C0C-9338-2332C71105E9.jpeg
B5B8DB64-BF64-4C0C-9338-2332C71105E9.jpeg (87.62 KiB) Viewed 546 times
48D9F6FB-2F67-4F4D-BC49-75303D54193C.jpeg and
B5B8DB64-BF64-4C0C-9338-2332C71105E9.jpeg
B5B8DB64-BF64-4C0C-9338-2332C71105E9.jpeg (87.62 KiB) Viewed 546 times
Gus not the best photos
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PostPost by: Matt Elan » Wed Aug 26, 2020 5:23 pm

As elan45 says the dimensions of the chassis are in the workshop manual. But you need to work out what’s gone wrong and why as rust in the base of the turret is the usual cause for the turret to move. I would also wonder what else has been done to the chassis and how well it’s been done. You say a new chassis is not an option but sometimes you’ve just got to bite the bullet. Is the turret actually twisted or is there an issue with the wishbone?
Matthew Vale - Classic Motoring Author
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1969 Plus 2S - Currently undergoing nut and bolt restoration
Visit me on matthewvale.com
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PostPost by: Woody7 » Wed Aug 26, 2020 6:15 pm

Hi, thanks
The work on the chassis has been done well but the offside tower appears to lean towards the outside of the car; having said that, the top wishbone has been butchered so going to now strip out the front suspension. The chassis has no rust and Has been modified with extra bracing I was hoping to pull the tower back in place and then put a brace across if poss, has this been done before?
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PostPost by: Foxie » Wed Aug 26, 2020 9:44 pm

Woody7 wrote:Hi, thanks
<Snip>
Has been modified with extra bracing I was hoping to pull the tower back in place and then put a brace across if poss, has this been done before?


One of the front towers on my original Lotus chassis almost completely severed due to cracking.

I fitted a tower brace to my now Spyder chassised Plus 2 in 2011, the Mark I, see first pic. It was a long U shaped box section (to clear the water pump ) and bolted to the chassis towers using longer bolts.

It was a good brace, but it was very difficult to remove and replace when having engine-outs, due to misalignments between the body bobbins and tower threads.

Now I'm on the Mark 4. It is a cranked bar with pin joints at the tower bolt positions, bolted to brackets inside the body, which are bolted through the bobbins to the towers. Comes out and goes back in a doddle.

I seem to remember posting a drawing not too long back, but I can't find it now.

Maybe someone knows how to find old posts 1

:)
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