rsguy

hi i need to order some new water pipes for my car. however i dont know there size.

i dont have a micrometer to measure what sizes i need can i use a tape measure if so do i just measure around the pipe or measure the end of the pipe across ?

thanks

Thrush

iTrader: (1)

End of the pipe across

rsguy

ok thanks so i measure the inside edges of pipe as shown in picture?

Ginge !

Depends,, most silicone is measured inside (I/D) so you would measure the outside diameter or O/D

SeanW88

To get outer diameter, measure around the circumference and divide by Pi.

If you know the thickness of the pipe wall, you could work out the inner diameter by subtracting 2x the thickness.

stu21t

Just measure straight across the outside diameter (O.D.) of the metal pipes, thats what size internal diameter (I.D.) silicone pipes. You will need.

RigPig

fuck knows, but i can tell you how to work out the vol of pipe work, not that that helps

stevieturbo

It does.

He could measure the length, fill it with a known volume of water, then back calculate to find the diameter lol

CrOwSoN15

Little bit OTT when you can just run a tape on the end

Edit to say, put the tape on 100mm mark, more accurate than the metal piece on the end.