New remote servo - How to get one cheap???

:( I have contacted the supplier in question and they do not seem to have a great deal of knowledge about the P6 or much interest in promoting their products.

The higher ratio servo for the V8 looks an attractive option (4.25:1 as opposed to standard 3.54:1) for a new unit assuming it is a direct fit.

I have had some experience of the wrong type of servo being fitted and accepting the higher pedal pressures associated with having the wrong servo is not a very good option in a car like the P6.

Will persevere and see if this higher rated unit does the job and report back idc........
 
Because of the different mounting arrangements of the 4cyl and V8 servos you wont be able to directly replace one with the other, but if you can find a way of mounting the V8 type there's no reason it shouldn't work, but it will require even less pedal effort.
 
:( Still having problems with the servo. Pedal now sinks to the floor with no progressive action or feel. Master cylinder has been removed and checked but is OK. Any ideas?
 
Oh Dear!! That's turning into a bit of a saga isn't it. Perhaps you are slowly closing in on the real cause of the problem.

I guess the first response is to ask a few of the standard questions. Does this happen with engine running, off, or both? Have you been able to assess whether you are losing fluid - ie having to top up the reservoir? Do you get braking whilst the pedal is sinking? How quickly does the pedal sink?

The P6 really only has two areas where fluid can disappear to without leaving a tell tale puddle on the ground - that's into the rear calipers and into the servo vacuum tank (and subsequently down the vaccuum hose to be burnt in the engine).

If both areas are clear then the only other option is for fluid to be by-passing a seal in either the master cylinder or the servo.

I have also heard of some very peculiar effects from a system being incorrectly filled from empty, which if you've just had the servo off might apply here. It's never happened to me (yet), so I'm a bit hazy on detail.

Perhaps if you can elaborate on the details a bit as above then we can get Harvey to offer a few pearls of wisdom?

Best of luck

Chris
 
Are you saying that you phoned past parts and they didn't know how to refurb and servo?? sounds pretty wrong to me, I have used them and know others who have and this is right up there street.


This is from there website.
At the heart of the operation is Past Parts fast computerised system which holds more than 15,000 original and remanufactured part numbers. It can pinpoint the correct component, often from very limited application details. Our Engineering department offers a high quality remanufacturing service for Hydraulic Brake Cylinders, Brake Servos and Brake Calipers
Click to expand...
Maybe worth calling again and speak to one of the guys who do the work, I found them very well informed, they do parts for all sorts of cars just tell them it is a 7" girling servo if they dont understand p6 talk.

The other thing is to give Ian at Rover classics a call I think he told me that he has or can get parts refurbished, again he knows his stuff with p6 and will keep you right.

If your pedal goes to the floor then it sounds like you have a fluid leak. Do the brakes jam on when you press the pedal?

Colin
 
You could try putting hose clamps on the 3 flexible hoses and see if the pedal is harder ,Then you know you have air in the system or leaking calipers

Good luck

Dave
 
Sorry P6JPE, perhaps I got the wrong end of the stick? Have you actually replaced / had overhauled your servo yet?

Chris
 
Hi

With all the technical stuff and various replies I seem to have got confused as to what the final outcome was to the original question.

The reason I am interseted is that my servo is shot too. So I am having it replaced with a new one. I can get a cracking deal on a brand new servo, it's a ratio of 3:1 will this be ok to use or will my brake pedal go to the floor and feel spongy when I brake.

sorry if I am being a bit slow on the uptake with regards to the previous threads.

Thanks

Paul.
 
Hi

I would think that if your pedal feels spongy and goes to the floor with a new servo fitted , you have problems elsewhere in the system

When the engine's off , pump the pedal a few times to use up the vacuum and if the pedal then feels firm , I would say it's OK
 
:p Problem solved - traced to sticking piston in body of slave cylinder which controls the all important air valve. Unfortunately the quality of these replacement servos is not as per original - in this case the rubber seal was too large for the diameter of the bore - solution replace with 2 smaller ones.

After all that the sevo is not great and I would not recommend this as a solution. In my search for a solution I tracked down a company (linked to Lockheed) who can make a servo to your specification (Tel 01926 473737 and ask for Eddie). They are a proper engineering company and seem to know what they are talking about - they put me onto the fault in question.

Definitely the way to go I think if you want a servo to last the life of the car..........
 
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