P6 4000S

Richard P6 · Post by **Richard P6** » Sat Feb 14, 2009 11:15 pm

Hi all

Just joined the forum.

I have just bought a modified P6 with a stage one, 4L crossbolted V8 in it, after some ten years without a V8.

It has a few issues which I hope I can resolve now that I have the time to crawl about underneath it. I might just need some help though as I have just found that the manifolds are too close to the O/S engine mount and have melted it

I have already spent lot of time rewiring the bad bits and it now runs alot better for it.

This is the spec, taken from the advert where I purchased it.

New 4 litre cross bolted V8.
Pair of stage 1 unleaded RPI engineering cylinder heads.
Piper RP4 high torque cam and followers.
New rocker shafts.
Steel rockers.
Cloyes duplex timing chain and sprockets.
New oil pump.
New water pump.
Lightened and balanced flywheel.
New 3 piece clutch.
New clutch master and slave cylinders.
High torque gear reduction starter motor.
Mallory dual point distributor.
RPI engineering A&P electronic ignition power amp.
Correct ignition coil and ballast resistor.
Magnecor 8mm plug leads.
Offenhauser dual port inlet manifold.
Weber 500 carburettor.
K&N air filter.
Facet red top fuel pump.
Malpassi fuel pressure regulator.
In car mounted fuel pressure gauge.
PRI engeering/J&P stainless exhaust manifolds with 13/4 primaries.
Custom 2 into 1 front section of exhaust.
JR Wadhams high capacity 3 row radiator.
Kenlowe electric radiator fan.
Rossini up rated front brake discs.
Green stuff front brake pads.
Aeroquip brake hoses.
New power steering box.
Overhauled power steering pump.
Stripped and rebuilt LT77 5 speed gearbox.
Calibrated speedometer.
Recent rolling road set up showed 178bhp at rear wheels.
Up rated Cibie headlamps.
Cibie front fog lamps.
Genuine Rover 6JX14 Minilte wheels (part number CRC 3628) fitted with Hankook 185X14 90H tyres with nearly new tread.
Locking wheel nuts.

ian.stewart · Post by **ian.stewart** » Sat Feb 14, 2009 11:38 pm

Sounds a bit of a weapon, we need some pics

RoverP6B · Post by **RoverP6B** » Sun Feb 15, 2009 1:20 am

Hello Richard,

Being a P6B owner myself, I am always interested in seeing what others have done with theirs. Yours does sound interesting. Hope that you can post some pics soon.

Ron.

Richard P6 · Post by **Richard P6** » Sun Feb 15, 2009 12:02 pm

RoverP6B wrote:Hello Richard,

Being a P6B owner myself, I am always interested in seeing what others have done with theirs. Yours does sound interesting. Hope that you can post some pics soon.

Ron.

Hi Ron

I believe you know my car from another forum

Pics eh?

Here we go then

From the side

The power and the glory, will be removing and tidying a lot of that spagetti soon.

One of the issues - the all new Cos Cast Pisa engine

Will be removing the fog lights, eww... and replacing the overriders as time allows. The minilights are the wrong offest, so they are off too and will have a set of 15" Vitesse alloys soon. Lots of work to do, but it should fly when done.

RoverP6B · Post by **RoverP6B** » Sun Feb 15, 2009 12:27 pm

Hello Richard,

We do indeed know each other from the other forum..

This is a great place too. I have learnt so much since being a member here!

Thanks for posting,....the pics are great..

Ron.

Richard P6 · Post by **Richard P6** » Thu Oct 29, 2009 1:23 pm

Been doing a bit of work

Removed the fog lights, put a new front bumper on (the old one was twisted) replaced the over riders, changed the minilites for the Vitesse wheels, and fitted some front police spec spoliers.

Done a lot more than this but not that you can see

ChrisJC · Post by **ChrisJC** » Thu Oct 29, 2009 3:35 pm

Nice motor. Not 100% convinced about the alloys, I prefer Rostyles myself.

Chris.

gelmonkey · Post by **gelmonkey** » Thu Oct 29, 2009 4:24 pm

I like these cars,a mate of mine has one and has just changed his diff over for faster acceleration and is now happy but wants some fatter wheels /tyres.
I think I'm with Chris regarding the wheels you have but each to their own as the saying goes.
Are you going to level that engine up in due course or did you have a flat on the offside?

Good spec and should go like hot snot.
Nice one.
Paul

v8trev · Post by **v8trev** » Thu Oct 29, 2009 8:55 pm

Very, very nice. Oh, and I think the wheels look great - Rostyles on anything other than a Cortina 1600E never look right to me . . .

Richard P6 · Post by **Richard P6** » Thu Oct 29, 2009 9:59 pm

Yes, the engine now sits flat. I had to modify the rear mount (Gearbox mount) to bring the tail end up a bit, as the O/S mount was actually touching those manifolds. It got rather hot as you can see - also it is smaller than it should be - correct one on the right. This was the beginning of the heat problems and why the manis are now wrapped.

This was the engine about a month or so ago with a lot less in the way of spagetti, tidied up paintwork (not perfect yet, but will be soon) painted inlet manifold, painted PAS resevoir, that huge hose gone, relocated fuel regulator now routed away from those manis, 3" filter in place of 2" one, and generally a lot better. And flat

Also fitted (needs tidying) is the SD1 Header tank, angled plate removed and heat resistant gasket fitted under carb

This was last week after tarting up the rocker cover (Only done one so far

) and cleaning up and painting the heater. PCV valve also fitted but not plumbed in yet.

Coming off the road end of November for a complete strip down and respray - should be fun

gelmonkey · Post by **gelmonkey** » Thu Oct 29, 2009 10:34 pm

Yeah
That looks much nicer now.
Are you going to run the PCV hose into the air filter or the carb?
May seem like a silly question but am interested in your set up.
My mate has had loads of problems with his motor chuffing and has tried all ways and it still isnt right (I think his block is very worn).
Keep going with the tidy up,it will look brilliant when done

cheers
Paul

Richard P6 · Post by **Richard P6** » Fri Oct 30, 2009 9:15 am

gelmonkey wrote:Yeah
That looks much nicer now.
Are you going to run the PCV hose into the air filter or the carb?
May seem like a silly question but am interested in your set up.
My mate has had loads of problems with his motor chuffing and has tried all ways and it still isnt right (I think his block is very worn).
Keep going with the tidy up,it will look brilliant when done
cheers
Paul

There is a PCV port on the front of the carb which this will connect straight into. At the moment it is plugged into the back of the air filter, but it is doing nothing there. When it is connected up, I will connect the O/S pipe from the rocker cover into the air filter.

This is supposed to work by the PCV port sucking fumes from the crankcase by way of the PVC valve and burning them in the combustion chambers by way of the inlet manifold. The other rocker cover is connected up to the underside of the airbox so that air sucked into the crankcase is filtered. Also if you are playing with WOT and there is a positive pressure in the crankcase which is too much for the valve to handle, the excess is then pushed into the airbox the other side of the air filter.

Or that is how I understand it

Kind of air conditioning for your crankcase with a pressure relief valve if you need one.

Not sure if I need a flame trap between the PCV valve and the inlet manifold though.

I haven't connected it up yet as I don't know exactly what is going to happen with the carb settings and don't wish to have the car off the road when I am sorting it out.

CastleMGBV8 · Post by **CastleMGBV8** » Fri Oct 30, 2009 9:35 am

Richard,

The PCV system should have one valve cover with a filter, not to the carb filter and the other cover should have in this order a flame trap then pcv valve then connected to the centre port on the carb, the way you have it you will not get fresh air venting the crankcase and no effective pull through to the base of the carb.

Great car by the way, I'm quite nostalgic as I had a Mexico Brown with beige leather 3500S back in 1973 and absolutely loved it, all it needed was a better 5sp g/box and the engine modded for a bit more power and revability, I was even looking on e-bay last night but nothing nearly as nice as yours.

What sort of money for one similar condition to your car even with an original engine and box.

Kevin

plastic orange · Post by **plastic orange** » Fri Oct 30, 2009 1:43 pm

Nice car, I'm another P6 fan - I ran a series 1 V8 for 13 years. Just be careful using the power, as the diffs aren't the strongest.

Pete

gelmonkey · Post by **gelmonkey** » Fri Oct 30, 2009 9:06 pm

Hi Kevin
Thank you for your input regarding my friends issues with the PCV system.
I will show him your post.
He has been told by a few of us down here in Plimuff on how to go about sorting out the chuffing on his P6 and as already mentioned I think his block is very worn.
With regard to the car in the photos I do hope you were complimenting Richard and not me about the car as it is his and not mine

Of course it could just be me having another of my very senior moments (oft of late).
I am not worthy of such a fine example of automotive porn.
Cheers
Paul not Richard