Search found 1393 matches

by malcolm
Sat Aug 08, 2020 2:11 pm
Forum: Technical
Topic: Gunson Gas Tester
Replies: 6
Views: 155
Great Britain

Re: Gunson Gas Tester

I have a gunson colour tune. Set the car up on it exactly as per instruction, and it didn't run well at all. Trouble is, the E type likes to run richer than the colour tune suggests. So I set it such that it ran with a blue flame on no load, then richened up until it just went yellow. Ran fine then.
by malcolm
Wed Aug 05, 2020 8:43 am
Forum: Series 1
Topic: Clutch/ engine / ? Problem
Replies: 21
Views: 826
Great Britain

Re: Clutch/ engine / ? Problem

I have an XK140 as well and that too only very slightly drops revs when the clutch is depressed. Keith That's normal isn't it? My tickover drops very slightly when clutch is depressed; the engine is driving more mechanically. That's why advice was always to start the car in neutral with foot off cl...
by malcolm
Tue Jul 28, 2020 10:11 am
Forum: Technical
Topic: vac
Replies: 18
Views: 739
Great Britain

Re: vac

I might be wrong, but even with no load at 3000rpm you may not see max. advance. From my observations with my light, you need to be on the overrun (as said above) so coming from a position of load to zero load. A static 3000 rpm with no load may not do anything. I'd have thought it should be free to...
by malcolm
Tue Jul 28, 2020 8:31 am
Forum: Technical
Topic: vac
Replies: 18
Views: 739
Great Britain

Re: vac

Yes, to se it operate on the timing light, you need to run it at, say, a steady 3500rpm then remove all throttle - you'll see a short and temporary movement on the light
by malcolm
Sun Jul 26, 2020 8:39 am
Forum: Series 1
Topic: Painted wheels???
Replies: 31
Views: 1414
Great Britain

Re: Painted wheels???

I'm obviously out of step. Chrome wire wheels were always a big attraction to me, both at the time and now. At shows, I've often had people commenting on the chrome wires, taking photos just of the wheels, etc. Shiny chrome sets the rest of the car of regardless of colour in my view. I'm quite surpr...
by malcolm
Thu Jul 23, 2020 8:32 am
Forum: Welcome!
Topic: Hello all members
Replies: 10
Views: 3085
Great Britain

Re: Hello all members

Hi and welcome to the forum. Like the colour!
by malcolm
Sat Jul 18, 2020 8:27 am
Forum: Series 2
Topic: E type 4.2 triple webers swap for triple su carbs
Replies: 15
Views: 614
Great Britain

Re: E type 4.2 triple webers swap for triple su carbs

I don't think he claimed 235 BHP at the rear wheels. Rolling road operators use an assumed algorhythm to convert the figures they read from the wheels to an assumed figure at the flywheel, then quote a flywheel BHP
by malcolm
Sat Jul 11, 2020 7:53 am
Forum: Technical
Topic: BEST ENGINE OIL!!
Replies: 24
Views: 1044
Great Britain

Re: BEST ENGINE OIL!!

I use Castrol 20/50. I've also used comma, and the cheapest of therm all - Halfords classic mineral 20/50 sold in gallon cans. All work fine.
by malcolm
Wed Jul 08, 2020 8:28 am
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1631
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

That's correct, it's the Jag 6 for long stroke engines that we (or at least I) have
by malcolm
Tue Jul 07, 2020 12:46 pm
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1631
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

Maybe rolling road is the way for me then. Do we know good/reliable ones in the Hampshire area?
by malcolm
Tue Jul 07, 2020 11:16 am
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1631
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

Trouble is, the only way to "come back a little" is either to go to curve 0 which doesn't have enough initial advance, or reduce the static timing. Would it be better to reduce the max. advance from 34 to 32 and have a static advance of 8? Trouble is, that would also reduce the early advance figures...
by malcolm
Tue Jul 07, 2020 9:02 am
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1631
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

max-it-out wrote:
Tue Jul 07, 2020 8:52 am
Just wonder about that max. advance figure - how high can you go before you risk damage ?
I was wondering the same! I'm assuming that if there is no pre-detonation, all is well. Maybe I'm wrong?
by malcolm
Mon Jul 06, 2020 3:36 pm
Forum: Technical
Topic: 123 curve table
Replies: 0
Views: 289
Great Britain

123 curve table

For those interested, I have now done the table of 123 pre-programmed curves on the original thread
viewtopic.php?f=3&t=16000
by malcolm
Mon Jul 06, 2020 3:34 pm
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1631
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

So, I've now managed to plot the curves. In the end, I didn't do all 16 curves, for two reasons: 1) It's still a sod getting at the marker on the dizzie to adjust curves, guessing which curve you're getting to and then checking with a phone camera, but main reason was - 2) The total advance was gett...
by malcolm
Mon Jul 06, 2020 8:18 am
Forum: Welcome!
Topic: Greeting and tyres
Replies: 4
Views: 996
Great Britain

Re: Greeting and tyres

Wow, looks great!
by malcolm
Sun Jul 05, 2020 10:27 am
Forum: Welcome!
Topic: Greeting and tyres
Replies: 4
Views: 996
Great Britain

Re: Greeting and tyres

Hi and welcome to the forum. There's a bundle of very knowledgeable guys on here (excluding me!) who I'm sure will be a great help to you.
Pics of the car would be great!
by malcolm
Sat Jul 04, 2020 8:35 am
Forum: Technical
Topic: OIL CAPCACITY OF 1971 S2, 4.2, 2+2
Replies: 14
Views: 727
Great Britain

Re: OIL CAPCACITY OF 1971 S2, 4.2, 2+2

Hi Mike....h...is your engine block from an xj6 they had a longer tube that the dipstick goes into so stick sits higher.....search dipstick...plenty of info on the forum....Steve Sounds like a contender given what you're finding. I believe the XJ6 block was smooth compared to fluted? Or vice versa?...
by malcolm
Fri Jul 03, 2020 8:20 am
Forum: Pub Chat
Topic: Safe Storage
Replies: 11
Views: 561
Great Britain

Re: Safe Storage

:lol: Love it! I'm forever putting things somewhere safe, then losing them. I normally blame the wife by saying, "where did you put....." upon which she strenuously denies any involvement. When I subsequently find it in one of my drawers, I have to either: 1) Just don't tell her I've found it 2)Put ...
by malcolm
Fri Jul 03, 2020 8:13 am
Forum: General
Topic: Jaguar now re manafacturing engine blocks
Replies: 8
Views: 522
Great Britain

Re: Jaguar now re manafacturing engine blocks

Thing is Sonny, it's not a new engine, just the engine block as I understand it.
by malcolm
Thu Jul 02, 2020 8:58 am
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1631
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

Ok Steve - I'll put the maps on the thread as well.