pani_k

iTrader: (1)

Hi guys,

Just went out and measured circumference of one of my Samco hoses. It measures 5.2" or 13.5 cm. Calculating the diameter I get roughly 4.3cm. Reason for this is I'm about to purchase a T-Piece for to accept a water temp sender. Now the guy says to subtract 8mm to account for hose thickness. By my calculations I get diameter of internal hose wall to be about 34.9mm or 3.49cm.

The sizes available are 25mm, 35mm or 40mm. Now I don't know what to do...

Do I get 35mm and find it's too loose or go up to 40mm and find I struggle to get it in and stretch the hose too much???

HELP!!!

Thanks

Christian and Beccy

iTrader: (14)

Sorry, I'm lost. Samco hose sizes are based on Internal bore size surely?

pani_k

iTrader: (1)

Sorry mate, let me make myself more clear.

I've just gone outside with a tape measure and measure the CIRCUMFERENCE of the hose. So the outer circumference. And because circumference=pi*diameter I can work out the diameter. But this gives me the outer diameter as the hose has a thickness. The outer diameter measures as 43mm. This isn't accounting for hose thickness. The guy told me to account for this by subtracting 8mm to give me internal diameter or internal bore size as you put it as 34.9mm. Hope that makes sense

So I'm asking what size T-Piece I should buy that will fit properly, not leak, and not stretch the hose a shitload out of a choice of 25mm, 35mm or 40mm.

Cheers

Twellsie

iTrader: (1)

well if the internal bore is 34.9mm you need the 35mm I/D hose

Christian and Beccy

iTrader: (14)

Surely if this is an Alloy T-piece you are fitting, you simply measure the inside of the hose to which it will be fitted or the outside of the radiator connector (or whatever) it is being fitted onto and buy the T-piece accordingly?

Maybe I am being dense, but I can't see why its so complicated?

pani_k

iTrader: (1)

Well if I go and pull the hose out to measure the diameter, all the coolant will come spilling out...

I'm asking what size T-Piece because I don't know whether I should go slightly OVER the internal bore size so it is a tight fit or be on par with the bore size and risk it not being a tight enough fit. The internal bore size is also estimated and is not accurate.

jammerrs

surely the 35mm

you can always get a hose clamp thingy!?

pani_k

iTrader: (1)

Well just spoken to the guy and he said go for 35mm plus jubilee clips and should be fine so will do.

Thanks for your help chaps!