[Healeys] Hydraulic system maintenance

[Robert Markovich]

I’d certainly flush and change the hydraulic fluid—and keep on doing so every two years as this is an age and not a mileage issue, much like motor oil (every three months) and coolant (every year). Use a good low moisture absorption fluid such as Castrol, DOT 4. Vintage cars don’t seem to like the DOT 5 synthetic stuff, which tends to ooze out. And definitely change the brake and clutch hoses, preferably to steel-braid reinforced. I’d certainly change the clutch slave cylinder as that’s easy—and consider swapping out the rest of the master/slave and calipers as well. 


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On Thursday, June 15, 2023, 1:58 AM, John Spaur via Healeys <healeys at autox.team.net> wrote:

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Hello,

  

I am seeking the collective wisdom of my fellow Austin-Healey owners.

  

I restored my BT7 10 years ago and I drive it about 500 miles a year at the most. In the last few years, while the pandemic was in progress, it has been even less.

About a year ago I installed a remote clutch bleeder tube and I did not tighten the bleed nipple sufficiently. As a result, fluid leaked out and I need to bleed the air out of the clutch system.

  

However, I was wondering, because it has been ten years since the hydraulic system was completely restored, if it would be wise to rebuild all of the cylinders in the brake and clutch system.

  

Also, would it be wise to replace the front caliper flexible hoses and the flexible hose under the jumper seats. It should be noted that all three hoses do not seem to have hardened and there are not any other problems with the hydraulic system other than having to bleed the clutch line because of the air leak.

  

What are your thoughts?

  

John Spaur

’62 BT7
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