66S
I would also be very interested in buying an instruction plate if you get them made up


Thanks

same i'd be in for one, even though i don't need one

_________________

Thanks guys, when I get a few names I'll get a price from my screenprinter and let you know.

Regards
Al

66S, please put me down for one as well.

Thanks.

The instruction plates are different for the different brand pumps.

I had a quick look at the 2 at work and the churchill one has a slightly larger plate compared to the other one.

"the other one" doesn't seem to have a manufacturers name on it but the serial number is (if i remember correctly) ATB-###. The plate on this one says pretty much the same as the churchill, just on a smaller plate missing all the churchill branding/serial number etc.

I'll have a closer look tomorrow.

I cant see any big difference between the two manifactures, except the Churchill pumps plate is plastic & the Austaloy plate is alloy.

They did make thses pumps for a long time so I am sure there would be different types, but all the Hydro pumps I have seen have had whats in the photos.

Churchill Pump


Austaloy Pump

_________________
Have a Nice Day.
If already having a nice day please disregard.

I need to have the glass replaced (and face cleaned etc) on the pressure guage on my pump. Would have the calibration checked too. Is this something that your normal auto instrument repair place can do?

Can anyone recommend anyone? There is no-one local so will have to be posted.

Thanks.

_________________
Steve

Have a look at Morris1100 world's slowest cooper s rebuild thread. I'm pretty sure that gets sidetracked into talking about getting robot gauges rebuilt with supplier info and before and after pics.

_________________

Morris 1100,
Are there any manufacturers names on the pressure and vacuum pump parts?
How are the non return/check valves arranged or are they inbuilt into the bases of the pumps?
I'm looking to build a pump using either the master cylinder or hydraulic jack approach but if the original type of pumps are still around this may be a better alternative.
Some measurements of pump cylinder and plunger dimensions and overall outside dimensions would be useful.
From your pics the general arangement is straight forward so it shouldn't be too difficult to make a replica.

Regards
RonR

_________________
68 build Mk1 Cooper S
72 Clubman GT project. Total restoration required

Hi Ron,
A pump would be easy enough to make but the vacuum side is possibly more difficult. It is a little hard to understand how important the vacuum feature is as all it can do is contract the bag a minimal amount. During a refill, I always use the vacuum pump to evacuate the system but I know plenty who don't and it doesn't seem to make much difference. If I've had the displacers out, I'd normally fill them prior to fitting, I think that is more important.

BTW viewers, the Instuction Plates I will supply are the same as the Churchill one shown back a few posts and seems to be the same as the other brand. They are printed on black plastic and seem to be OK with Hydro fluid but I usually wipe it off ASAP, just in case !! I have a price for them, just have to get a postage price to Oz now.

Al

lemme know too re the plate. i might be keen.

_________________

I have also seen an embossed brass plate on early Churchill pumps.

The pumps themselves are very simple, I will chuck some photos up of how the valves work. A word of warning, it is very easy to lose a valve as they are quite simple and small.

Got it, thanks very much.

_________________
Steve

The vacuum pump is the tall cylinder on the right hand side...



It has two valves, one in the bottom and one in the side at near the bottom. When you undo the banjo bolt at the bottom this is what you will find...





Notice the ridge on the end of the banjo bolt, it is for the valve to seal on.

This is the actual valve, it is a bit of thin plastic/bakelite/mica/something like that!...





This is the valve on the side, the ridge for the valve to seat is machined on the body of the pump...







To dismantle the pump...

Now the pressure pump...





The fluid is drawn from the tank on the left into the bottom of the pump...



The fluid is forced out the top of the pump and into the hose out the right (the one with the dodgy hose clamp) to the car.
The tap and hose is to let the car down, the hose on the tap runs back to the top of the tank. The other hose goes to the pressure gauge.



To dismantle the pressure pump...













The valves on the pressure pump are a bit more elaborate than the vacuum pump...







The one on the other side just faces the other way.