tyre pressures

harveyp6 said:
DaveHerns said:
Use an 18mm socket on standard P6 nuts
Click to expand...

Wash your mouth out with soap you horrible little boy!
Click to expand...
Okay, okay, guys. Break it up, break it up!
Let's agree to call it 3/8 Whitworth and we can all be friends again! :wink:
 
redrover said:
harveyp6 said:
DaveHerns said:
Use an 18mm socket on standard P6 nuts
Click to expand...

Wash your mouth out with soap you horrible little boy!
Click to expand...
Okay, okay, guys. Break it up, break it up!
Let's agree to call it 3/8 Whitworth and we can all be friends again! :wink:
Click to expand...

I guess you wanted to write 3/4! :mrgreen:

I cannot imagine 3/8 nuts holding a wheel!
 
I'll get you a pic later on if you hold off buying :) The p6 one is nice and compact compared to that monstrosity ;)
 
Demetris said:
Mopeds and Quads may have 3/8 wheel nuts, but these are tiny, they need to be (and they are!) 3/4 on the P6!
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They're not, they are as previously stated, 3/8" Whitworth.
 
:) Could it be we are getting mixed up between Whitworth thread diameter and spanner jaw size here?
3/8 W (Whitworth) will require a 18.03 mm spanner/socket (or wheelbrace) which is roughly the same as 3/4" A/F

I found this handy table that it explains it all.

http://en.wikipedia.org/wiki/British_standard_fine_thread

I must admit that I can get confused about thread sizes. I'm OK with metric, UNF/UNC and BA - anything else and my head starts to hurt :D .
 
JVY said:
:)will require a 18.03 mm spanner/socket (or wheelbrace) which is roughly the same as 3/4" A/F
Click to expand...

19mm is the closest metric equivalent to 3/4AF.

The 3/8" in 3/8" whitworth is the length of one of the flats IIRC.
 
Steve's suspisions were correct.
I was talking about the correct spanner / wheelbrace / socket size to use, because i thought that this was the initial question.
Harvey's reference to the length of flats is all new to me... :roll:
 
Sorry, I put the wrong link in earlier. This is the handy table I found:
http://www.sat.dundee.ac.uk/~psc/spanner_jaw.html

Harvey, I'm not sure what the normal convention is for what Whitworth refers to. However, I popped out to the garage and the only spanner I could find marked in Whitworth was a 3/4 W. It was a reasonably newish looking Britool spanner if that helps. When I measured across the flats it was approx. 1 5/16" which ties in with what is says on the table on the link. When you say "length of one of the flats", I assume this doesn't mean the distance between two opposite flats but the length of just one flat on the hex head? Is this an alternative Whitworth convention?

PS please don't call me an anorak for going out to the garage to measure spanner jaw sizes on a Saturday night :LOL: .
 
ahem *cough* anorak. Beer and soundgarden. That's the score here tonight. We save spanner measuring for the really outrageous parties.... :D
 
why go to all the trouble finding the right socket when a pair of molegrips is completely adjustable........



(dont worry im just jesting, i shout at my students when they so much as go near metric sizes to work on the (predominantly imperial) race car!)
 
In relation to the fronts being 26 or 28....those who run 26, why do you find this preferable?
And those who run 28, what are your reasons for this instead of 26.
For years (older Alfas, but modern tyres), I have largely disregarded the official tyre inflation recommendation, and usually run 32-38 all round depending on the feel of the car.
I applied this reasoning to the Rover, and so now I know why it was crashing over cats eyes.
I will revert to 26 or 28, but just wanted some thoughts on why people find one preferable to the other
 
I highered the pressure when I got new tyres as the softer compound made it more tolerable at high pressure(28).

On the old tyres I ran at 25.
 
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