Lotus Elan

how to test lockheed boosters

PostPost by: rdssdi » Fri Apr 19, 2013 2:32 pm

I have two Lockheed remote servo brake boosters on my +2. I have heard that they are prone to seizing. They have two pistons. How can I determine if they are free and the unit is operating properly?

The brake pedal appears harder than it should.

Thanks

Bob
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PostPost by: archigator » Fri Apr 19, 2013 10:16 pm

Below is a page out of the Elan Workshop Manual.
If you need to disassemble the unit, here is a very useful link:
http://www.triumph-spitfire.nl/servoimages.htm

Gary
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Lockheed Servo Testing.jpg and
Testing a Lockheed Brake Servo
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PostPost by: rdssdi » Sat Apr 20, 2013 5:08 pm

Thank you for the information.

I will test the boosters as described. I have purchased a rebuild kit. The supplier only had one kit. I will locate more if a problem is diagnosed.

Thanks.

Bob
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PostPost by: archigator » Mon Apr 22, 2013 4:32 pm

Here's another good Lockheed brake booster rebuild site with very helpful photos...

http://landcrabs.proboards.com/index.cgi?board=tech&action=display&thread=393

Gary
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PostPost by: cal44 » Mon Apr 22, 2013 8:46 pm

Bob,
if all else fails try this guy. He did my Sunbeam and it came out great. He is well known for his re-builds.
He is located back east and north...........
mike
http://www.ebay.com/itm/G-IRLING-Brake- ... 23&vxp=mtr
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