PAS

On the pulley you have the apparent second "pulley" behind the existing one is a pressed steel disc which is allegedly some sort of balancing item. I've never been very convinced by that description as I don't see how it would achieve that function. But even where a third pulley is fitted for A/C this component is included, so Rover did it for a reason!

Chris
 
"Rover Bill" who is supplying me with the equipment to convert my 3500s to power steering tells me that the disc behind the crankshaft pully is a harmonic balance. I wish the rest was that easy. I now have a PAS steering box but mine has two arms underneath to connect to steering rods. I was with him when he removed it from one of his many P6 "parts cars". I am awaiting supply of the remaining items but I have established that the pump is mounted on a Heath Robinson like arrangement with the pump pully at the rear, unlike most most cars. The more I go into this, the more complex it becomes.
 
The balancing rim contains little balance masses which are placed at appropriate locations within the flanged rim.

On my crankshaft pulley, this is placed right at the front, as opposed to behind as in the case of Warren's.

It is my understanding that there is also rubber or elastomer as it is often referred to incorporated within the makeup of the pulley.

Ron.
 
That's right. The rubber is an anular ring within the main casting that supports the pulleys. Almost invariably perished....

The "harmonic balancer" swops to the front of the pulleys when you have A/C and PAS. Still can't see it achieving very much though...

Chris
 
There's some great information coming out here guys. I think at some point we need to reassemble it into the definitive step-by-step guide to converting your V8 to PAS. Otherwise there is the danger of simple-minded folk like me getting thoroughly confused. It happens easily, I can tell you.

Does anybody know why the drop arm from the manual box doesn't fit the PAS box? Before you guys started posting otherwise, I assumed that the output from the PAS box would be in the same place, meaning nothing downstream would need to be changed.

Warren
 
WarrenL said:
Does anybody know why the drop arm from the manual box doesn't fit the PAS box? Before you guys starting posting otherwise, I assumed that the output from the PAS box would be in the same place, meaning nothing downstream would need to be changed.
Click to expand...

It will be in the same place, but the size of the output shaft and splines will be different.

Part numbers also show the differences in the droparms and the retaining nuts.

You also need the special retaining nut and stud for the PAS box, as I don't see that there either Warren.
 
Are these missing pieces easy to get hold of? Or do I need to start scratching around and begging?

JR Wadhams seem to have a lot of stuff, and so do p6spares.co.uk.
 
WarrenL is right. The more we go into this, the more perplexing it becomes. However after driving a manual steering 3500s for nearly five years, I am determined to continue (with the help of "Rover Bill"). While riding in a Rover is a delight, steering it is not. Driving in NZ's North Island hill country involves steep grades, winding and narrow roads, not exactly the Canterbury Plains. One must maintain a firm grip on the large steering wheel and be constantly alert at all times. Hardly relaxing motoring. Following chrisyork's post about the wipers, I was relieved to find that mine has the cable drive so that is one problem I dont have to overcome. Is removing the crankshaft pulley difficult? The Rover Repair Manual shows a fairly small bolt but I assume you would still need a puller tool to remove the pulley.
 
Hello Classicus,

Removing the crankshaft pulley can be extremely difficult. The bolt is torqued to a figure of 160lbs/ft, which is very tight indeed. Once the bolt is undone, you will need a puller most definitely.

Ron.
 
SydneyRoverP6B said:
Hello Classicus,

Removing the crankshaft pulley can be extremely difficult. The bolt is torqued to a figure of 160lbs/ft, which is very tight indeed. Once the bolt is undone, you will need a puller most definitely.

Ron.
Click to expand...

I have never needed a puller to remove a front pulley on a V8, and I've done hundreds, but I suppose you could be unlucky.

Undoing them is easy enough, if you're brave enough to try.
 
The rubber is an anular ring within the main casting that supports the pulleys
Click to expand...

I know newish diesel Peugeots and Citroens have rubber bonded crank pulleys but did P6's have the same all those years
before ? And did it go out of fashion again till recently ?
 
Takes nerves of steel to try that method of undoing the pulley !! :wink:
Works almost every time though!! :wink:
 
Classicus, since we are both in NZ and can probably access the same sources for parts etc, I suggest we stay in touch over this. I'm in no great hurry to get the job done, but since I have the major components there I'm keen to eventually achieve PAS, for the same reasons you suggest. Although I live on the Canterbury Plains, it is likely that GF148 will be subjected to a certain amount of city driving, and as you will know, spinning that hefty wheel around car parks isn't much fun. Having driven a PAS example in the past I also know just how delightful the conversion makes a P6B.

My aim now is, with the help of other contributors to this thread, to put together the definitive list of parts required to complete the conversion.

Confirmed so far:

PAS steering box.
Reservoir.
Pump.
Mounting bracket.
Pulley (and belt).

Unconfirmed:

Drop arm.
Track rods.
Wiper mechanism.

Please add/modify/correct this list as required.

Also, can anybody put up a photo of a PAS engine bay so that we non-PAS blokes can get an idea of where all the components sit?
 
I hate to add to your list, but I am sure there are different front road springs for the power assisted car.

They are just a little longer to lift the front a little to compensate for the extra weight.

This any good as a pic - I can take more if it helps
 

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Eek! Perhaps I won't worry about the front springs - I'll just put a brick in the boot to compensate.

Thanks for the photo - it shows me where the reservoir goes. Is there any chance of some more shots showing the pump, belt and hoses? Maybe some detail of the mounting brackets? Now is the time to practise using macro mode on your camera!
 
Probably not essential, but there should be a reinforcing plate for mounting the reservoir that sits on the road side of the inner wing. Also, there were 2 types of pump mounting bracket. The one in your picture has a large cut out which provides clearance for the fuel pump, so is the correct one for your car. Pump brackets on air-con cars dont have this hole, but they do have another hole further up the bracket to take the compressor idler pulley.
 
WarrenL said:
Eek! Perhaps I won't worry about the front springs - I'll just put a brick in the boot to compensate.

Thanks for the photo - it shows me where the reservoir goes. Is there any chance of some more shots showing the pump, belt and hoses? Maybe some detail of the mounting brackets? Now is the time to practise using macro mode on your camera!
Click to expand...

Bag of cement would be better :LOL:

I can take some more pics tomorrow - its 10.30 pm here.

Will post them up when I get home from work.
 
WarrenL said:
My aim now is, with the help of other contributors to this thread, to put together the definitive list of parts required to complete the conversion.

Confirmed so far:

PAS steering box.
Reservoir.
Pump.
Mounting bracket.
Pulley (and belt).

Unconfirmed:

Drop arm.
Track rods.
Wiper mechanism.

Please add/modify/correct this list as required.

Also, can anybody put up a photo of a PAS engine bay so that we non-PAS blokes can get an idea of where all the components sit?
Click to expand...

Hi Warren,
It just so happens that i have pics of the PAS engine bay,...i took these as a reference guide before i started stripping the car,







One more item to add to your list is the high pressure pump to steering box hydraulic pipe
 

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Excellent, thanks Hermione. I hadn't picked that the pump would mount down there, but now I can make sense of the bracket I have. I can see it's going to be interesting assembling that crank pulley - I can't quite see how the PAS pulley fits on to the rear of the existing water pump/alternator pulley and yet the existing belt and pulley stays lined up. I see that the balancing wheel moves to the front of the entire assembly.

Once this project gets underway I promise to take photos and assemble all the information collecting here in this thread, along with my own experiences, into the definitive guide to converting your P6B to PAS.
 
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