Lotus Elan

Clutch fork to throwout bearing spring orientation

PostPost by: 1963Turnerjohn » Mon Dec 04, 2017 10:15 pm

I?m in need of confirmation on the ?throwout bearing to fork? spring orientation shown

I?ve included a picture of my setup -

Are the coiled springs setting in the proper orientation?
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c593944f-1e80-4a79-bb27-8ac21587e225.jpeg and
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PostPost by: ElanDNA » Tue Dec 05, 2017 8:23 am

1963Turnerjohn wrote:I?m in need of confirmation on the ?throwout bearing to fork? spring orientation shown

I?ve included a picture of my setup -

Are the coiled springs setting in the proper orientation?


.......

clutch_-.jpg and
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PostPost by: oldelanman » Tue Dec 05, 2017 8:30 am

The workshop manual has an illustration showing how the springs fit with the more "closed" hook end to the bearing carrier, the more "open" end to the release arm - if that makes sense.
1512463946238-448743036.jpg and


More pics here for further confirmation......

lotus-gearbox-f37/clutch-release-bearing-attachment-t14501.html#p68412

lotus-gearbox-f37/position-clutch-release-springs-t25844.html#p169589

I think you have it right.
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PostPost by: tdskip » Thu Sep 03, 2020 7:54 pm

Two quick things on this older thread;

1) the illustrations and pictures here were very helpful, thank you

2) this was not the best place to save weight, for crying out loud I'd happily take a few more ounces of weight for something more robust and firmly locating everything. Cripes!
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PostPost by: 2cams70 » Thu Sep 03, 2020 11:05 pm

tdskip wrote:2) this was not the best place to save weight, for crying out loud I'd happily take a few more ounces of weight for something more robust and firmly locating everything. Cripes!


No need to fear - millions of Cortinas built like that can't be wrong!
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PostPost by: tdskip » Fri Sep 04, 2020 1:07 pm

How much did you have to re-bend or tension the springs? Mine do not want to firmly locate the assembly as-is?

Good point on the Cortina - I'm reassembling a '74 2002tii at the same time as the Lotus (don't ask....) and the clutch fork on that thing is the size and weight of a shovel by comparison.

BMW Clutch Release Bearing .jpg and
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PostPost by: pharriso » Fri Sep 04, 2020 1:55 pm

tdskip wrote:How much did you have to re-bend or tension the springs? Mine do not want to firmly locate the assembly as-is?

Good point on the Cortina - I'm reassembling a '74 2002tii at the same time as the Lotus (don't ask....) and the clutch fork on that thing is the size and weight of a shovel by comparison.

BMW Clutch Release Bearing .jpg


If you've ever had a clutch fork snap you'll appreciate that. I once had to drive from Notts to Chelmsford (about 120 miles) in my 130/5 with no clutch, not fun, especially at a railway crossing..... :roll:
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PostPost by: 2cams70 » Fri Sep 04, 2020 2:13 pm

pharriso wrote:If you've ever had a clutch fork snap you'll appreciate that. I once had to drive from Notts to Chelmsford (about 120 miles) in my 130/5 with no clutch, not fun, especially at a railway crossing


I've never seen one break in a regular Cortina. It was designed before the Lotus with it's heavy duty clutch came into existence. Don't get me started on German engineering. It doesn't always measure up to the myth!
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PostPost by: tdskip » Fri Sep 04, 2020 2:21 pm

Losing a clutch is not a lot of fun, agree!

So how much reshaping of your springs was required on your cars? Mine are currently too loose to do much good.
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PostPost by: 2cams70 » Fri Sep 04, 2020 2:48 pm

The only purpose of those springs - and they are are clips more so than springs - is to keep the throwout bearing sleeve in close contact with the release bearing so the U shaped pivot doesn't fall out. Although it's a bit messy compared to later Ford designs it's perfectly reliable.

You can still get them new - can't vouch for the quality though as I've never bought new ones.

https://www.burtonpower.com/clutch-fork ... 2e201.html
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