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Lockheed Servo Identification
Posted: Thu Jan 20, 2022 9:35 am
by 111Robin
Does anyone have any AP Lockheed data that could help identify this servo ?. The tag number is 4257 818 10 and L17C. I have contacted Seltech who are now the AP Lockheed supplier but they haven't come back with anything.
Re: Lockheed Servo Identification
Posted: Thu Jan 20, 2022 11:08 am
by InnoCooperExport
Do you have any pictures of the casting etc? I believe you can tell different bore servos based on a ring that may or may not be on the "nose" of the body. I thought this info was on the Mk1-Perfomance Conversions main site but I can't seem to find it at the minute.
Re: Lockheed Servo Identification
Posted: Thu Jan 20, 2022 11:48 am
by Andrew1967
S Type 5 1/2 servos have no ring. One, two or three rings denote larger bore sizes.
I’ll check my Lockheed books to see if I can ID that particular one and advise ring ID / bore.
Re: Lockheed Servo Identification
Posted: Thu Jan 20, 2022 1:02 pm
by 111Robin
The correct item for the car (Elan +2) according to the AP document I have is LR18221. This doesn't tie in with any of the tag numbers.
Re: Lockheed Servo Identification
Posted: Thu Jan 20, 2022 1:04 pm
by 111Robin
Cooper S application :
Re: Lockheed Servo Identification
Posted: Thu Jan 20, 2022 11:01 pm
by Simon776
It is a Type 6 servo from a Lockheed Brakemaster Powerbrake aftermarket kit for passenger cars and light vans with a single line braking system.
Re: Lockheed Servo Identification
Posted: Fri Jan 21, 2022 9:06 am
by 111Robin
Simon776 wrote: ↑Thu Jan 20, 2022 11:01 pm
It is a Type 6 servo from a Lockheed Brakemaster Powerbrake aftermarket kit for passenger cars and light vans with a single line braking system.
It is, it is fitted to my Elan +2, replacing the original Girling unit, but I am trying to confirm if it is the correct unit for the car as none of the numbers on the tag match anything in the Type 6 fitting guide.