Metal or rubber valves?

[Redlotus]

I have a couple of slow punctures, well one and one not so slow. Wheel off and tyre looks almost new and no sign of a problem so i am assuming the valve which is metal and i am guessing original equipment.

Question is should i stick with these if they are still available for your average quick fit place or change to rubber ones. Any thoughts before i take them in monday.

Simon

[Robert West]

Hi Simon I would be serprised if its the valves as they still use rubber to fix to the rim. My tyres loose pressure over time.They used to be very bad before i had them powder coated, found out the alloy had gone pourous. Robert

[Steve C]

I've had the valves start leaking around the seal over time. Metal valves don't tend to get changed when the tyres are and over time a combination of corrosion of the alloy and hardening of the rubber around the metal valve will cause a slow leak. I spotted this on my car with washing up liquid and water poured around the valve.

[Redlotus]

Thanks for the response.

Robert

This is a new one on me so i hope its not that. Is this a common problem?

Steve

I am off to sneak the washing up liquid out of the house and try that test to confirm. Yep leak at base of valve.

Simon

[Robert West]

Simon
Sorry Simon didnt wont to worry you. My alloys are non standard and are about 15 years old so assumed all would suffer with corrosion to some degree.