Lotus Elan

servo issues 2

PostPost by: street » Thu Nov 07, 2019 9:53 am

Sorry forgot to add, reaction piston, any tips on how you get this out, do i need to change it.

thanks
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PostPost by: types26/36 » Thu Nov 07, 2019 6:01 pm

When I overhauled one a few years ago the reaction valve was also stuck, I got it out by screwing a tap into it and pulling it out.
They do get gummed up so I would recommend taking it out.
I presume you have read this link which describes how to rebuild a Lockheed servo.
http://www.triumph-spitfire.nl/servoimages.htm
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PostPost by: Foxie » Fri Nov 08, 2019 12:07 pm

I've just had a look at the Lockheed servo rebuild link above (which I'd never seen before, good information)

I only became aware of the difference between the 1.9:1 and 3:1 servos when one of the usual suspects supplied a 1.9 servo replacement for the 3:1 in the Plus 2 a long time back. Took me a while to find out why my brakes had gotten worse !

I was curious to see at the end of the item a table listing for a 4.25 ratio, LR 18230.

Has any experience of this version, I see it's available from Delphi.

What vehicles was it fitted in ?

:)
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PostPost by: types26/36 » Fri Nov 08, 2019 12:37 pm

Foxie wrote:What vehicles was it fitted in ?:)


This link shows an LR18230 for sale, at the bottom it lists an OEM number for a Rover but does not show which model.
https://www.autodoc.co.uk/delphi/1764040
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PostPost by: Foxie » Sat Nov 09, 2019 1:25 pm

Brian,

Thanks for that, but I am looking to hear from people who may have fitted the 4.25 servo, most likely in a Plus 2.

Delphi have it priced at £272 incl vat, but out of stock at the moment.

I have emailed them re availability.

By the way, I have replaced the original Lotus brakes with the Spyder supplied Ford Sierra/Zetec kit, which has Willwood four pots/vented discs in front.

:)
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PostPost by: alan.barker » Sun Nov 10, 2019 8:05 am

Be careful if the Brakes are too light or you will lock the front wheels easy on a wet road and slide into the car in front of you :oops:
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PostPost by: Foxie » Sun Nov 10, 2019 5:20 pm

alan.barker wrote:Be careful if the Brakes are too light or you will lock the front wheels easy on a wet road and slide into the car in front of you :oops:
Alan


I need to be able to lock my front wheels (Yokohama A048s) on dry tarmac at max pedal pressure. That means I have 100% availability of my brakes' capability. I can't do that with my present set-up.

Braking in the wet I can manage. ( As well as not tail-gating the car in front :) )
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PostPost by: john.p.clegg » Mon Nov 11, 2019 6:45 pm

Foxie wrote:I've just had a look at the Lockheed servo rebuild link above (which I'd never seen before, good information)

I only became aware of the difference between the 1.9:1 and 3:1 servos when one of the usual suspects supplied a 1.9 servo replacement for the 3:1 in the Plus 2 a long time back. Took me a while to find out why my brakes had gotten worse !

I was curious to see at the end of the item a table listing for a 4.25 ratio, LR 18230.

Has any experience of this version, I see it's available from Delphi.

What vehicles was it fitted in ?

:)


Fitted one in my Plus2 for a very short time...it was like fitting an on/off switch on the brakes..

John :wink:
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PostPost by: Foxie » Tue Nov 12, 2019 1:14 am

john.p.clegg wrote:
Fitted one in my Plus2 for a very short time...it was like fitting an on/off switch on the brakes..

John :wink:


Thanks for that, John.

You have a certain genius for putting the matter into a nutshell !

:)
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