Search found 764 matches

by MarekH
Tue Oct 08, 2019 8:19 am
Forum: Series 3
Topic: Front indicator lens.
Replies: 9
Views: 461
Great Britain

Re: Front indicator lens.

Track through the Road Vehicles Lighting Regulations (as amended) on the government website and go back to the draft Statutory Instrument for 1973 and I think you'll have your answer. When joining the common market, the minimum height went from imperial to metric and also went up a fair bit. The new...
by MarekH
Thu Sep 12, 2019 12:03 pm
Forum: Series 3
Topic: From 4 to 5 Speed , but Which one ?
Replies: 26
Views: 2469
Great Britain

Re: From 4 to 5 Speed , but Which one ?

So do I - it's in my garage.
Feel free to pop round for a cup of tea on the way back from Goodwood tomorrow if you are so inclined Chris.
kind regards
Marek
by MarekH
Thu Sep 12, 2019 9:28 am
Forum: Series 3
Topic: From 4 to 5 Speed , but Which one ?
Replies: 26
Views: 2469
Great Britain

Re: From 4 to 5 Speed , but Which one ?

A 2.88 differential mated to a standard 4speed with overdrive will deliver the cruising rpm you desire. You are however limited on the gearbox front as you will need a 4speed box which has the two threaded bosses on the right hand side of the box for mounting the slave cylinder - standard six speed ...
by MarekH
Tue Sep 10, 2019 8:07 am
Forum: Series 3
Topic: Battery Voltage Gauge
Replies: 11
Views: 1716
Great Britain

Re: Battery Voltage Gauge

The gauge can only move slowly because it is a bimetallic gauge. This means that when unpowered, the needle slowly drifts to the left and when connected and powered, it drifts slowly to the right. What is not right is that it is oscillating. This means the voltage is being turned on and off, probabl...
by MarekH
Fri Sep 06, 2019 3:25 pm
Forum: Series 3
Topic: Vacuum pipes
Replies: 5
Views: 1068
Great Britain

Re: Vacuum pipes

The s3 Parts Manual has all of the factory combinations listed. You can find a copy in the knowledge base elsewhere on this site. Many of the ports will simply have been blanked off as some will have been for an automatic car, others may be for legacy items as the manifolds won't have changed even t...
by MarekH
Fri Sep 06, 2019 9:51 am
Forum: Series 3
Topic: Vacuum pipes
Replies: 5
Views: 1068
Great Britain

Re: Vacuum pipes

That's not original and it's wrong on every level. Either plug the vacuum retard back in where it ought to be plugged into or blank off the lower left carburettor. Right now you sound as though you certainly have a vacuum leak where you don't want one and are needlessly retarding the ignition at mor...
by MarekH
Mon Aug 26, 2019 4:33 pm
Forum: Series 1
Topic: IRS - Shock Absorbers - Plan B ?
Replies: 8
Views: 1447
Great Britain

Re: IRS - Shock Absorbers - Plan B ?

Dear Michel, I would image (and hope that) front and rear dampers made by the same manufacturer are designed to work together. I can also see plenty of people fitting only Gaz adjustable rear dampers simply because they want to alter the rear ride height. They may or may not have thought about the a...
by MarekH
Mon Aug 26, 2019 1:26 pm
Forum: Series 1
Topic: IRS - Shock Absorbers - Plan B ?
Replies: 8
Views: 1447
Great Britain

Re: IRS - Shock Absorbers - Plan B ?

There is no reason why you can't have two different makes of damper front and rear. The springs (torsion bars = front; concentric coils = rears) control the ride height and how far the car moves up and down when going over bumps. The dampers (separate ones mounted to the picture frame = front; mount...
by MarekH
Fri Aug 23, 2019 3:30 pm
Forum: Series 1
Topic: FACTORY FIT - Series 1 3.8
Replies: 267
Views: 345970
Great Britain

Re: FACTORY FIT - Series 1 3.8

Is it even representative to include a factory demonstrator in this section? The car being quoted clearly had different reservoir caps at different times, a different engine by the sounds of it, different side steering wheel and heavens knows how many other changes in specification, so it hardly hel...
by MarekH
Wed Aug 14, 2019 8:19 am
Forum: Series 3
Topic: Exhaust manifold
Replies: 7
Views: 1679
Great Britain

Re: Exhaust manifold

The larger diameter thread to mount the heat shield to the manifold was introduced when exhaust gas recirculation was added as part of the US emissions package. The earlier thinner manifolds are no longer avalable so all replacements have the larger diameter threaded holes for the heat shields. The ...
by MarekH
Wed Aug 07, 2019 4:47 pm
Forum: Series 3
Topic: Tuning Problems V12
Replies: 46
Views: 5151
Great Britain

Re: Tuning Problems V12

I wouldn't confuse the engine water temperature with the air temperature. There is only 19 litres of water circulating (and only a fraction of this resides in the radiator) but a massively huge volume of air being pumped. The Otter switch hysteresis is about 10'c, so 10'c drop in water is spread ove...
by MarekH
Sat Aug 03, 2019 10:18 am
Forum: Series 2
Topic: Series 2 indicator not working
Replies: 5
Views: 1442
Great Britain

Re: Series 2 indicator not working

Dear Tom, You'll have to download a wiring diagram for your car and look at what that wire may be connected to. It may not be an indicator wire, but perhaps flash the headlight or beep the horn. The fault might lie elsewhere, e.g. with the wiring to the flasher can, the earth connection or with the ...
by MarekH
Sat Aug 03, 2019 10:12 am
Forum: Series 3
Topic: Nightmare: new windscreen for series 3 OTS
Replies: 17
Views: 2679
Great Britain

Re: Nightmare: new windscreen for series 3 OTS

Just ask Pilkington directly. They can then direct you to one of their agents or supply themselves. There was a thread about other etype windscreens elsewhere on this forum and David Jones documented his factory visit and listed their contact details there.

kind regards
Marek
by MarekH
Thu Aug 01, 2019 7:09 pm
Forum: Technical
Topic: Small Engineering Company offering great value
Replies: 1
Views: 590
Great Britain

Re: Small Engineering Company offering great value

I remember looking in the Martin Robey catalogue when I needed new pistons for the rear brakes on my s3. The price for the standard piston was £10 and the next line had the price for a stainless steel one - £10.50. It was a bit of a no brainer as to which ones I bought.

kind regards
Marek
by MarekH
Wed Jul 31, 2019 11:26 am
Forum: General
Topic: V12 Engine man
Replies: 13
Views: 2776
Great Britain

Re: V12 Engine man

If your fans fail and you overheat, but your engine is still running, then you can get the temperature down to sensible levels with this procedure. It is also useful if you arrive at your destination hot after a lot of stop-go traffic. See https://forums.jag-lovers.com/t/solving-heatsoak-a-worked-ex...
by MarekH
Tue Jul 30, 2019 12:18 pm
Forum: Series 3
Topic: oil pressure woes
Replies: 32
Views: 5391
Great Britain

Re: oil pressure woes

If you have brass fittings at either end, then you can simply solder up a copper capillary tube between them. To make sure you have no problems with vibration or having it go around corners, simply coil the capillary tube many times over. That's what I have on my car.

kind regards
Marek
by MarekH
Sun Jul 28, 2019 10:36 am
Forum: Series 3
Topic: Fuel Pump Electric Supply
Replies: 6
Views: 1526
Great Britain

Re: Fuel Pump Electric Supply

Dear Toby, The s3 has two fuel pumps mounted back to back with each other. The black earth return is common and comes through the chassis of the pump. The white, unfused, 12v feed comes via a Lucar connector mounted on either end of each pump. As you have the pumps out of the car, you can test the i...
by MarekH
Tue Jul 23, 2019 9:52 pm
Forum: Series 3
Topic: Air INtake Temperature Sensor - Mounted
Replies: 3
Views: 1094
Great Britain

Re: Air INtake Temperature Sensor - Mounted

Dear Toby,
If the bellows don't hold vacuum then it'll be academic, but it doesn't matter any way, as one side leads to blind dead end and one side goes to manifold vacuum.
Do whatever fits best.

kind regards
Marek
by MarekH
Sun Jul 21, 2019 4:46 pm
Forum: Series 1
Topic: 123 Tune which Coil?
Replies: 50
Views: 4667
Great Britain

Re: 123 Tune which Coil?

From post #28, the clue as to the reason why "that curve" has so much advance low down is that you say it comes from a race car company. It probably relates to an engine with a high lift camshaft. High lift cams typically have a lumpy idle at low rpm, so to make idle smoothly, the advance is bumped ...
by MarekH
Sun Jul 21, 2019 3:06 pm
Forum: Series 1
Topic: 123 Tune which Coil?
Replies: 50
Views: 4667
Great Britain

Re: 123 Tune which Coil?

Here's what I think happens:- 123 looks up a number in the table and advances the rotor that amount. The first line in the table is 500rpm and 9' advance. 123 doesn't care whether you are at 0rpm or anywhere up to 499rpm - it advances the rotor 9' because that's the first number in the table and you...