Search found 3608 matches

by christopher storey
Wed Apr 24, 2019 1:02 pm
Forum: Series 3
Topic: Serious miss
Replies: 10
Views: 116
Great Britain

Re: Serious miss

If it has been filled with diesel then you would expect considerable knocking as its anti-knock qualities are minimal . In addition, if you can get to touch some of the fuel ( syphon a small amount out ) diesel feels very slippery when rubbed between the fingers, and the smell is unmistakable . Are ...
by christopher storey
Thu Apr 18, 2019 7:24 am
Forum: Technical
Topic: Dip Stick bottoms out before it is completely in
Replies: 5
Views: 294
Great Britain

Re: Dip Stick bottoms out before it is completely in

STOP !STOP ! This is a very common problem. What is happening is that your dipstick is hitting the horizontal baffle in the sump , rather than going through the hole in the baffle. This is probably occurring because it has become bent through being pushed against the baffle. Take the stick out and e...
by christopher storey
Tue Apr 16, 2019 10:26 am
Forum: Technical
Topic: Malpassi fuel pressure regulator
Replies: 44
Views: 618
Great Britain

Re: Malpassi fuel pressure regulator

I rather think that Marek is thinking of the V12 system which has a fuel return. The 6 cylinder cars have no return flow . Your pump is clearly a traditional pulse type SU, which will show steady pressure for a while,( whilst float valves are shut and the pump is not working ) then when a float need...
by christopher storey
Sun Apr 14, 2019 9:34 am
Forum: Series 1
Topic: Removing gearbox tunnel cover
Replies: 10
Views: 321
Great Britain

Re: Removing gearbox tunnel cover

John : it can do no harm to cable tie it somewhere along its length to stop it flapping. The thing to make sure of is that there are no acute bends at any point in its length i.e all the curves should be long sweeping ones
by christopher storey
Wed Apr 10, 2019 6:13 pm
Forum: Series 1
Topic: Removing gearbox tunnel cover
Replies: 10
Views: 321
Great Britain

Re: Removing gearbox tunnel cover

Piscator : getting the console off is a black art. It is essential to realise ( but not at all obvious ) that the easiest way to do it is to turn it across the car . The last time I did mine on my S2 I removed the LH ( passenger ) seat so that it can be turned fully across the car , and it is then u...
by christopher storey
Tue Apr 09, 2019 6:18 pm
Forum: General
Topic: Interesting Old Motorsport Article
Replies: 10
Views: 435
Great Britain

Re: Interesting Old Motorsport Article

Finest motoring writer there has ever been. By a very long way. That's a bit sweeping, isn't it? LJKS was always entertaining, and undoubtedly a great and rather learned writer , but not always right , having bees in his bonnet about a number of things. And what about , just for starters, Steady Ba...
by christopher storey
Tue Apr 09, 2019 5:58 pm
Forum: Technical
Topic: Ignition failure?
Replies: 8
Views: 217
Great Britain

Re: Ignition failure?

The overwhelming likelihood is ignition module failure, particularly if this is a recently fitted unit. For some reason, aftermarket ignition systems either last for ever ( see e.g. Heuer ) , or else fail within a few months of being fitted. For this reason I advocate sticking to points, which barri...
by christopher storey
Sun Apr 07, 2019 9:46 am
Forum: General
Topic: MOT exempt certificate
Replies: 13
Views: 455
Great Britain

Re: MOT exempt certificate

Julian : you have to make a fresh declaration that it is exempt each time you tax it, even if you have not MOTd it . The declaration is that it has not been substantially modified in the last 30 years
by christopher storey
Sat Apr 06, 2019 3:42 pm
Forum: General
Topic: MOT exempt certificate
Replies: 13
Views: 455
Great Britain

Re: MOT exempt certificate

AFAIK , Malcolm, Yes . The exempt status is still available even if you do MOT it, although there may be more faffing about on the website. When I decided to take advantage of the exemption, I had in fact had some of the cars on SORN , so there was no difficulty
by christopher storey
Sat Apr 06, 2019 3:36 pm
Forum: Series 1
Topic: Speedo Angle drive broken
Replies: 3
Views: 219
Great Britain

Re: Speedo Angle drive broken

David : this may not be the angle drive, but can be the result of a broken cable or one where the squared off end has become rounded. What you need to do is to take off the angle drive and examine it on the bench . If you rotate the gearbox end and the speedo end of the angle drive rotates, then the...
by christopher storey
Sat Apr 06, 2019 9:31 am
Forum: General
Topic: MOT exempt certificate
Replies: 13
Views: 455
Great Britain

Re: MOT exempt certificate

I just got 2 V 11 Z forms for 2 of mine . I then got on the re-tax website, entered the number on the form, made the declaration that the vehicle was unaltered in the last 30 years, and the whole thing was done in about 1 minute for each car
by christopher storey
Wed Apr 03, 2019 12:28 pm
Forum: Series 1
Topic: Coming up for auction
Replies: 6
Views: 331
Great Britain

Re: Coming up for auction

:yeahthat:
by christopher storey
Tue Apr 02, 2019 2:17 pm
Forum: Series 3
Topic: Oil Pump Modifications
Replies: 4
Views: 241
Great Britain

Re: Oil Pump Modifications

The only thing I can think of is that it would/might reduce turbulence in the oil flow and thereby improve oil flow or possibly prevent cavitation , although AFAIK cavitation is more a problem with impeller type pumps rather than gear ones
by christopher storey
Sat Mar 30, 2019 7:36 am
Forum: Technical
Topic: Help please - Removing sump.
Replies: 9
Views: 251
Great Britain

Re: Help please - Removing sump.

Malcolm : you are developing shipwright's disease - soon the entire car will be in pieces ! If it was running ok before , with oil consumption no worse than 200 miles per pint, and fuel consumption of 20 - 23 mpg , then my advice would be to leave well alone, because piston removal is quite a task w...
by christopher storey
Sat Mar 30, 2019 7:27 am
Forum: Series 1
Topic: Demister Vents
Replies: 15
Views: 594
Great Britain

Re: Demister Vents

I have a feeling, but it is no more than that, that the early vents were also used on mark 1 Minis . They certainly look very similar
by christopher storey
Thu Mar 28, 2019 11:09 am
Forum: Technical
Topic: valve clearance
Replies: 12
Views: 370
Great Britain

Re: valve clearance

Mark : something which might interest you ( particularly when it comes to a bottom end overhaul ) is that there were some intriguing differences between the Mark 10 / 420G engines and any other XK engine . This resulted from the fact that the bodyshell was found to have a resonant frequency close to...
by christopher storey
Thu Mar 28, 2019 10:47 am
Forum: Technical
Topic: valve clearance
Replies: 12
Views: 370
Great Britain

Re: valve clearance

AFAIK all the cams were changed to the parabolic type in c 1968. This is why the earlier 420G information ( which dated from late 1966 ) referred to by Andrew is for the old cams. If you have 4 bolt cams, then they are definitely parabolic and require the .012" - .014" clearances
by christopher storey
Wed Mar 27, 2019 6:26 pm
Forum: General
Topic: Bad day for Jaguars
Replies: 17
Views: 900
Great Britain

Re: Bad day for Jaguars

What James says ( and it is clear Carsten agrees with him ) has a great deal going for it in many people's eyes . I spent 3500 hours on my FHC and loved every minute of it - I was very slow , was under no time pressure, and each part completed gave me a sense of achievement . I am :bigrin: now even ...
by christopher storey
Tue Mar 26, 2019 10:13 am
Forum: Technical
Topic: 3 SU-carbs: oscillating AFR-value
Replies: 13
Views: 414
Great Britain

Re: 3 SU-carbs: oscillating AFR-value

Dan : the XK engine ( indeed all SU carburetters ) is definitely fuel pressure sensitive, and the pressure should not exceed about 0.2 bar = 2.9 lbs/sq.in . many people who have fitted e.g. Facet pumps fit a variable pressure limiting valve for this reason, as many of the aftermarket pumps give out ...
by christopher storey
Mon Mar 25, 2019 1:40 pm
Forum: Technical
Topic: 3 SU-carbs: oscillating AFR-value
Replies: 13
Views: 414
Great Britain

Re: 3 SU-carbs: oscillating AFR-value

The oscillation might well be caused by the float levels being slightly too high. Thus when the needle valves are open, the fuel level rises and the mixture richens ( slightly) , and vice versa when the needle valves close. However, in general I would not worry at all about your figures. The XK engi...