Brake failure at Lime Rock

Technical and performance related
Post Reply
dougfraser
Posts: 1
Joined: Tue Dec 24, 2013 1:06 pm
Location: Vermont
Contact:

Brake failure at Lime Rock

Post by dougfraser »

On August 31, at the Lime Rock Historics, my brakes failed and I crashed my e-type into the Armco at the bottom of the uphill.

The failure was truly bizarre - the brakes worked normally until you hit the pedal hard. Then there were no brakes.

I traced the failure to a design flaw in the Lockheed master cylinder that I had purchased shortly prior to the event and I've enclosed a report on what I found.

If anyone has purchased a new Lockheed master cylinder recently, you might want to read it.

Sorry I'll miss Watkins Glen. Still fixing the Jag...

-Doug
Attachments
Lockheed Document_Rev.2.pdf
(591.87 KiB) Downloaded 332 times
User avatar
Eric Russell
Site Moderator
Posts: 263
Joined: Wed Dec 25, 2013 10:42 am
Location: Mebane, NC

Re: Brake failure at Lime Rock

Post by Eric Russell »

Thanks for posting your findings. Even if we have parts of different manufacture, it sounds like it is a Good Idea to thoroughly test the components.
Moderator VRG Forum
Eric Russell
Mebane, NC

1961 MGA, 1981 Alfa Romeo GTV6, 1984 Alfa Romeo Spider,
1991 Honda ST1100, 1999 Ford F250, 2006 Toyota Solara
User avatar
Mike Clifford 2
Posts: 199
Joined: Tue Dec 24, 2013 2:13 pm
Location: Hopewell Junction, NY

Re: Brake failure at Lime Rock

Post by Mike Clifford 2 »

Wow, that's horrible. I'm sorry you went through that, but good on you for really delving into it and getting to the bottom of the problem. Not doing that can not only cause the problem to get missed, but can also really hurt your confidence in the car going forward. I'm glad you don't need to worry about that now.
Interested in vintage cars and vintage racing? Photos, videos, our race schedule, and more can be found at http://www.michaelsvintageracing.com!
Image
Post Reply