Thread: Oh Dear! What am I going to do?

Originally Posted by Pedro_The_Swift

lots of "accidents" happen rebuilding old cars------

She said she hadn't thought of that - but keep the ideas coming.

Ron

Originally Posted by UncleHo

G'day 4bee

....... the Land/Rover badge stencilled on the R/hand front guard was used much later out here than in the UK,...

Ron. That would well be a PBR Vacuum adjuster for a trailer, which adjusts the volume of vacuum to the trailer brakes, it allows you to increase the Vac when, if you have a trailer load of calves for the sale yard the trailer comes on first, when empty the setting is returned to near zero so that the trailer just brakes slightly before the vehicle, there should be a plug type thing at the rear (a small plug on a chain) that closes the connection,all tese service parts should be available from PBR (Aust) P/L (used to be at Campsie/Hurlstone Pk). ....

Sorry for coming in on this part of the thread so very very late.

The stenciled "Land-Rover" on the front guard was an ideosyncracy of Annand & Thompson's in Brisbane. They applied the stencils from the earliest Series 1's right through the Series 2a's. But I don't believe that I have seen it on a Series 3. (Could be wrong however)

The PBR vacuum trailer brake unit is a very useful system and much better than the contemporary electric trailer brake units. The biggest problem is the cost of installing the system, as it has to be fitted into the brake hydraulic system, have a vacuum acumulator tank and then the vacuum line to the rear, very difficult on the plastic dash type vehicles.

As suggested before you turn the "T" handle to adjust the setting of the brakes to the load on the trailer, then it is automatic and applies the brakes when you push the pedal. For an emergency stop you can pull the handle back to apply the brakes on the trailer only.

Unfortunately they are incompatible with ABS.

The trailer components are cheap and can convert any hydraulic or cable operated over-ride system to an integrated braking system.

You can often pick up brand new bits at swap meets for next to nothing.

C Ya
Diana

Thanks for that info, Diana.

I was looking at removing the PBR system as I doubt I'll ever have a trailer fitted for it.

Would there be any call for it these days?

Ron

Can we set up a pole to vote if Ron should be changed from super moderator to either

a - Demi God

or

b - minor deity

only hevenly intervention could have saved you.

hells bells that was one funny post to read.

It must be something in the air, I sort of mentioned that I might get rid of the disco and SWMBO said that if I do then I will have to swap, buy a defender if I do. But why not keep it, even agreed that a 4.6 would be good in it?????

hmmm she is up to something

blythe

Originally Posted by p38arover

Thanks for that info, Diana.

I was looking at removing the PBR system as I doubt I'll ever have a trailer fitted for it.

Would there be any call for it these days?

Ron

Ron

If electric trailer brakes are better than vacuum/air systems, one has to ask why semi trailers don't have electric brakes?

Independant trailer brakes are always better that over-run brakes, because by applying the trailer brakes first the vehicle/trailer combination will stop in a straight line and the brakes remain on while the brake pedal is depressed. Over-run trailer brakes require, the car to be decelerating suficiently to overcome the spring in the coupling, then the brakes in the trailer come on taking the weight off the coupling, releasing the trailer brakes etc, so trailer braking is intermittant with poor safety and efficiency.

A friend and I are currently building a car trailer rated at 4 tonnes. It will have dual line vacuum over hydraulic (breakaway system). This will allow us to legally tow Range Rovers and Defenders on the trailer. The dual line system is the same as the one on your S2a although it has an additional vacuum supply line to the rear to charge the reservoir on the trailer.

Most car trailers, even ones with brakes and particularly hire trailers are only rated at 2 tonnes Gross Trailer Mass, although looking at their size you could park the Queen Mary on them are only legally able to carry something about the 1 ton weight limit because the trailer weighs almost a ton. When the GTM of the trailer goes over 2 tonnes the trailer must have "independant brakes" which are systems such as the PBR unit on your S2a, with the additional vacuum charge line.

The down side of the vacuum trailer brake system over electric brakes is the cost of installation. This is not your problem.

The decision to remove the system should be based upon what you are actually going to gain and are you ever going to tow a trailer with the vehicle? Remember that many heavier or older caravans still have the vacuum brake system fitted as do some hire car trailers.

Regards
Diana

Unfortunately they are incompatible with ABS.

Ron's new Series has ABS? Rover really were ahead of the game
FWIW - I'd say its work keeping the system, if nothing else for the historical value.
cheers
Dave

Originally Posted by Dave110HardTop

Ron's new Series has ABS? Rover really were ahead of the game
FWIW - I'd say its work keeping the system, if nothing else for the historical value.
cheers
Dave

I thought all Series had anti lock brakes!!

Originally Posted by Lotz-A-Landies

The decision to remove the system should be based upon what you are actually going to gain and are you ever going to tow a trailer with the vehicle? Remember that many heavier or older caravans still have the vacuum brake system fitted as do some hire car trailers.

Excellent information!

I was only removing the brakes as I didn't think I'd ever tow a trailer with them (and to tidy it up under the bonnet).

I didn't realise they were still used in car/4WD-drawn trailers.

I doubt I'd ever seriously tow with the Series - I'd use the P38A or 300Tdi Disco in preference. The Series might occasionally tow a trailer of rubbish on a Clean Up day (it would be good then as it has a tray.)

Ron