Adjustable Rear Top Links

[andydclements]

Does anybody know the thread spec of the Lotus adjusters for the top rear suspension links?

Andy

[Jonathan]

Hopefully in the post tomorrow (I'm away for a week out the country).

14mm is the size, I would go with thatever pitch you can get as my S300 ones are a course thread and the ones on the GT3 are fine.

[Vulcan Grey]

ok, so I have to ask, why do you ask?

Cause I think I may be able to save you alot of time.

The Lotus adjustable rear upper links use LOTUS PART#A082D6038F, which is a left and right hand threaded bolt with 16x1.5mm thread (LH & RH). The nuts are also LH and RH threaded of course.

I bought my adjuster bolts from a Lotus parts supplier, including the nuts, and then I made the plugs to weld into my cut (non-adjustable original upper links). The taps were the most expensive part by far...

http://www.lotuscolorado.com/vulcangrey/ga...tableupperlinks

[Jonathan]

Got the dunces hat on today - they are 16mm not 14mm (guns are 14mm )

I had a mismatch with the S300 ones I have - the ones you buy from Lotus are definatly 1.5 pitch (just measured them).

I can remember when i was re-furbing mine the people working on them prior had rounded the nuts off, I bought this set and found they are a different thread so I have them as spare.

IIRC they were pretty cheap.

Any reason why you cant buy 4x sets of pos/neg nuts and weld them in place as opposed to tapping them ?

Even if you stack 2 nuts together to increase the thread lenght thats got to be cheaper than a -16mm tap and all the farting around.

[Vulcan Grey]

Got the dunces hat on today - they are 16mm not 14mm (guns are 14mm )

I had a mismatch with the S300 ones I have - the ones you buy from Lotus are definatly 1.5 pitch (just measured them).

I can remember when i was re-furbing mine the people working on them prior had rounded the nuts off, I bought this set and found they are a different thread so I have them as spare.

IIRC they were pretty cheap.

Any reason why you cant buy 4x sets of pos/neg nuts and weld them in place as opposed to tapping them ?

Even if you stack 2 nuts together to increase the thread lenght thats got to be cheaper than a -16mm tap and all the farting around.

Yeah the Sport 300 and X180-R are beefier.

I seriously wouldn't just weld nuts together....

For one you'd probably kill the temper of the nuts, also distort them, and then they don't exactly fit with a round tube... Alignment is an issue as well. A tapped and turned plug will provide a correct concentric mate with the upper link arms (once cut).

Edited May 18, 2007 by Vulcan Grey

[andydclements]

Thanks.

I'm planing to do the same as Travis, so will need to obtain / have the inserts manufactured. I'm hoping to find some "off the shelf" inserts that can be turned to fit, but failing that I will have to purchase the taps and do it myself as well.

I should then be able to adjust the rear camber, should I decide to swap the wheels / lower the car from standard etc.

Then it's to the front, and make the offset square space and adjust the top wishbones.

Andy

[Vulcan Grey]

email me for a CAD drawing, may save you some time...

see my webpage below for my email

[esp88]

Hello

I'm also thinking to make one too and I found this from boat shop (see picture) I don't know how to call in eng. ?

it's Stainless and question is I can buy e.g 10-12 mm and if weld a stainless pipe both end can work ?

What you think ( it will be cheap but I don't know how strong ).

Y.Hotta

[Jonathan]

Definatly no imo.

I wouldn't think it was anywhere near man enough to cope.

[Glyn Harper]

I bough the original lotus items.. they're really not that expensive. By the time you've bought a tap and spent hours modifying what are already quite old items.. you've probably not saved that much. And unless you're going to re coat them, they'll rust quicker.