BJ8 Servo

I have a rebuilt original servo in place that is now leaking. Can I upgrade with an updated version? Thanks

Sure. Buy the brackets as well as the modern servo as the original brackets do not work with the new servo unless you bend one of them and flip the other. Please note that most folks report that the modern replacement does not seem to provide the same amount of boost as the original.

Have it rebuilt just stay away from them fruity people-

White Post does a good job.

It's not that hard a rebuild there's a great step by step video on you tube

A good while back, I decided to rebuild my Girling servo and was unable to complete the task when I found a crack in one of the unavailable air valves. I replaced the Girling with a Lockheed unit and easily designed brackets to mount the unit onto the same studs holding the Girling. Over the next year I used the Lockheed unit and found it performed passably but provided lass boost then the Girling. Eventually I sourced new air valves and rebuilt the original Girling which has been in place and in use since.

I found the Lockheed produced less assist and found I preferred the added power of the Girling. However, the Lockheed did perform well and provided a good alternative.

A year back, friend was thinking of boosting the brakes in his BN6 and told about the PBRVH40 (https://www.hydroboost.com.au/boostertypes.htm) by a Healey enthusiast out of Hong Kong. A smaller Lockheed look-a-like, the unit used by the Hong Kong Healey owner was purchased on eBay and supplied out of Australia. According to his recommendation, of the 2 single-line models available (VH40, VH44), the VH40 provides a higher brake boost with the VH44 used on disk brake equipped vehicles. Since I found the Lockheed to provide less boost than the Girling, I understand, the VH40 produces quite a bit more boost than the VH44 and details of both units can be found if you Google the unit..

Although I have no experience with these units, I though I would pass on their existence and maybe another forum member can provide additional information.

All the best,
Ray (64BJ8P1)

I wasted hours trying to fit a modern replacement servo and brackets until I finally submitted and had the original unit professionally rebuilt.
It's not worth the hassle.

Jeepster said:

I wasted hours trying to fit a modern replacement servo and brackets until I finally submitted and had the original unit professionally rebuilt.
It's not worth the hassle.

Click to expand...

I bought a new style unit from Tom' Import in Portland Oregon, so far, so good.

In a recent E-mail blast__this week, I'm certain__AH Spares is listing a "new" rebuild kit for the original boost unit.

My own (70%) success rate** not withstanding, might be worth the gamble to see if the short-comings of some of the interim kits have been addressed...?



In fairness, the Internet__let alone YouTube__had yet to be invented when I was actively engaged rebuilding boosters...