Search found 778 matches

by MarekH
Fri Jan 17, 2020 5:24 pm
Forum: General
Topic: Electric power steering
Replies: 12
Views: 852
Great Britain

Re: Electric power steering

I have no idea which edition of which club magazine it was, although Rod did give me a .pdf copy some years ago. His name will pop up if you ask around. If you get stuck, I can dig out an email address held on another computer somewhere. It may well have been a MGF now that is mentioned - my memory ...
by MarekH
Sun Jan 12, 2020 7:29 pm
Forum: General
Topic: Electric power steering
Replies: 12
Views: 852
Great Britain

Re: Electric power steering

Go and search one of the e-type club magazines for an article by Rod Shears on this subject. He has fitted electric steering to a number of Jaguar cars and I think the donor parts were from a old Maestro. Total cost will leave you with £1800 more in your pocket than if you go down the £2000 route me...
by MarekH
Sun Jan 12, 2020 7:19 pm
Forum: Series 3
Topic: series 3 vs Series 1
Replies: 65
Views: 2270
Great Britain

Re: series 3 vs Series 1

The earlier s1 xj12 had a v12. The v12 continued in the xjs until 1996. It is very difficult to compare a s1 with a s3 etype. Aside from small items like nuts and bolts, pretty much the only parts in common parts an early s1 car has with a late s3 car are the bootlid, the IRS tie plate & cage mounts...
by MarekH
Tue Dec 31, 2019 1:18 pm
Forum: General
Topic: Brooklands new year meet
Replies: 5
Views: 417
Great Britain

Re: Brooklands new year meet

I'm cycling through Brooklands tomorrow, so may detour for half an hour to wave "hello". I'm not exactly sure what the event is, as all the website says is what gate you should turn up at, that they are expecting 1000 cars to turn up and that "standard museum prices apply", so paying ~£15 to sit in ...
by MarekH
Mon Dec 30, 2019 8:44 am
Forum: Series 3
Topic: V12 ECU
Replies: 32
Views: 3608
Great Britain

Re: V12 ECU

Dear Michel, That picture illustrates air injection into the exhaust to make the exhaust gases contain less nitrous oxide and has nothing to do with vacuum in the manifold and how much fuel to inject into the cylinders. The car will run perfectly well without it. To see a more relevant diagram, take...
by MarekH
Thu Dec 12, 2019 2:27 pm
Forum: General
Topic: Breaking the barrier
Replies: 22
Views: 1510
Great Britain

Re: Breaking the barrier

Mark, The amount of vacuum is a function of how much the pistons go up and down less how open the throttle butterfly is. All the caburettor does is add a bit of atomised fuel into the mix. Also Stromberg carburettors came in two varieties:- one had adjustable needles from above and fixed jets from b...
by MarekH
Mon Dec 09, 2019 10:00 am
Forum: General
Topic: Breaking the barrier
Replies: 22
Views: 1510
Great Britain

Re: Breaking the barrier

I've actually hit and passed 40mpg - in cash terms - with my v12 which runs both petrol and lpg via my fuel injection system. That's in excess of 20mpg in the real world, but as lpg is half the price of petrol, the economy doubles. "45mpg" should be achievable with a standard camshaft if I were to d...
by MarekH
Tue Dec 03, 2019 9:47 am
Forum: Series 3
Topic: US only side indicators/flashers
Replies: 4
Views: 349
Great Britain

Re: US only side indicators/flashers

Image2.jpg
Image2.jpg (133.72 KiB) Viewed 305 times
They are exactly the same as the originals
kind regards
Marek
by MarekH
Mon Dec 02, 2019 9:53 pm
Forum: Series 3
Topic: US only side indicators/flashers
Replies: 4
Views: 349
Great Britain

Re: US only side indicators/flashers

To some degree, how well you succeed may depend on what colour your car is, as some contrasting combinations stick out more than others. Three suggestions:- 1/ Get some sticky tape, spray it body colour and stick it over the gap. If you have a dark colour, it may then become invisible; 2/ use xj12 s...
by MarekH
Sat Nov 30, 2019 8:46 am
Forum: Series 3
Topic: Laycock de Normanville
Replies: 44
Views: 3707
Great Britain

Re: Laycock de Normanville

I thought the torque curve for the v12 was almost completely flat judging from the posted dyno graphs people buy. Does this mean you have to buy a different graph from the dyno man if you do it in 1st gear not 4th? Yes, the gear ratios simply get duplicated (except between 1st and 2nd) so there is n...
by MarekH
Fri Nov 29, 2019 5:39 pm
Forum: Series 3
Topic: Laycock de Normanville
Replies: 44
Views: 3707
Great Britain

Re: Laycock de Normanville

I'm not sure that analysis holds well in every scenario. Doing whatever you are doing in 1st or 2nd gear presents a substantially lighter load to the engine than doing that same thing in fourth gear. If you have trouble visualising that, try pulling away or accelerating hard in top gear on a bicycle...
by MarekH
Tue Nov 26, 2019 11:11 am
Forum: Series 3
Topic: Black smoke Series 3 2+2
Replies: 14
Views: 1392
Great Britain

Re: Black smoke Series 3 2+2

You've not mentioned anything anywhere on this thread about airflow and black plugs are a symptom of too much petrol for the airflow you have, or not enough air for the petrol you have. If the carburettor linkages are not allowing the throttle plates to open together then one side may not be synchro...
by MarekH
Mon Nov 25, 2019 8:52 am
Forum: Technical
Topic: How necessary is it to blend in the valve seats?
Replies: 15
Views: 906
Great Britain

Re: How necessary is it to blend in the valve seats?

Tadek, here is a test for you.... Is it possible to turn the head upside down and sit six very tall but perfectly squared off cylindrical bits of metal (spare valves?) onto the valve bases? If all six appear not to deviate from the vertical, then the valves sit true in the valve stems and the valve ...
by MarekH
Fri Nov 22, 2019 3:46 pm
Forum: Technical
Topic: Brake fluid syphoning
Replies: 2
Views: 391
Great Britain

Re: Brake fluid syphoning

Yes it is. The seal in the middle of the shuttle in the servo is not sealing. If the slave reservoir is lower down than the master reservoir, then it'll just overflow eventually as it is gravity feeding straight through. If it were only happening when the brakes were applied/released, then there is ...
by MarekH
Tue Oct 08, 2019 8:19 am
Forum: Series 3
Topic: Front indicator lens.
Replies: 9
Views: 1054
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: 34
Views: 4799
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: 34
Views: 4799
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: 2564
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: 1660
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: 1660
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...