Post by jeff on Nov 18, 2023 17:10:00 GMT
Hi all,
Thought I'd update about my servo saga.
As you'll have read, my servo was a Lockheed copy,with little use. Occasionally the brakes would hang on for a second or two when released. I didn't like that or the "feel" but it stopped the car in short order.
I decided to go back to a Girling unit, but had difficulty in sourcing the correct bracketary for a MK1.
A few folk suggested Patric from Northern Ireland and sure enough, he provided the correct brackets via Tony Wood.
Tony provided a Girling MK2B servo but suspected a fault when it was fitted to his car. He told me sometimes he had to use more footforce than usual.
Anyhoo, I checked the servo over, which was a rebuilt unit, and suspected the rubber grommet/adaptor for the vacuum none return valve which is fitted into the vacuum cylinder body. It was quite soft and tatty.
I fitted the servo but heard a pronounced hissing from the servo grommet.
Tony Wood located one on the WWW,and I fitted it today. Not easy with the servo in situe but doable....just. luckily I had a small tube of Girling grease which is recommended to ease the grommet and none return valve into place. It's a bit tough on the old fingers doing it but with a little help from a lever, popped it in.
Now the brakes work properly, without hanging, and the servo holds vacuum well.
So after all that, It wasn't the G valve, but the Lockheed copy, "Powertune" servo.
I'm sure many owners have a Lockheed copy, some have overcome the inherent hanging one way or another.
So, if anyone wants a Powertune Lockheed copy servo which is undamaged and done little mileage, I have one at a very reasonable price. It comes with a new spare air valve, cap, diaphragm and a bracket. Pm me if interested.
Jeff.
Thought I'd update about my servo saga.
As you'll have read, my servo was a Lockheed copy,with little use. Occasionally the brakes would hang on for a second or two when released. I didn't like that or the "feel" but it stopped the car in short order.
I decided to go back to a Girling unit, but had difficulty in sourcing the correct bracketary for a MK1.
A few folk suggested Patric from Northern Ireland and sure enough, he provided the correct brackets via Tony Wood.
Tony provided a Girling MK2B servo but suspected a fault when it was fitted to his car. He told me sometimes he had to use more footforce than usual.
Anyhoo, I checked the servo over, which was a rebuilt unit, and suspected the rubber grommet/adaptor for the vacuum none return valve which is fitted into the vacuum cylinder body. It was quite soft and tatty.
I fitted the servo but heard a pronounced hissing from the servo grommet.
Tony Wood located one on the WWW,and I fitted it today. Not easy with the servo in situe but doable....just. luckily I had a small tube of Girling grease which is recommended to ease the grommet and none return valve into place. It's a bit tough on the old fingers doing it but with a little help from a lever, popped it in.
Now the brakes work properly, without hanging, and the servo holds vacuum well.
So after all that, It wasn't the G valve, but the Lockheed copy, "Powertune" servo.
I'm sure many owners have a Lockheed copy, some have overcome the inherent hanging one way or another.
So, if anyone wants a Powertune Lockheed copy servo which is undamaged and done little mileage, I have one at a very reasonable price. It comes with a new spare air valve, cap, diaphragm and a bracket. Pm me if interested.
Jeff.
