OK, so where does it go???
Submitted: Sunday, Apr 09, 2006 at 20:22
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Michael B
Evening peoples,
Took the #2 vehicle out for a drive this afternoon, had sat in the shed for a couple of weeks.
Checked tyre pressures and suprise/suprise had only about 20+psi in each tyre.
Where does the extra PSI go???
Yep I know, someone will explain it in great detail, but......Put the car away with 30+ pressure in the tyres,,,,,,,no leaks, has dust seal, tubeless tyres, Michelins, no obvious leaks,,,,,,,so over a week or two a few inches of pressure disapears.
Where does it go??
I have just lost in excess of 40psi and I want to know who has it,,can anyone help??
Regards
Michael B (SA)
Reply By: Peter 2 - Sunday, Apr 09, 2006 at 20:50
Sunday, Apr 09, 2006 at 20:50
Be aware that alloys can and do lose air due to porosity, shouldn't be a problem these days but was a big problem in the past. We had a Rangie with alloys that had the problem and the tyres had to be taken off, the rims 'painted' and the tyres refitted before they would hold air.
Occasionally you can get porous tyres too, usually fixed by coating the inside of the tyre with a special sealer.
not likely to happen on the Jag but grit and dirt in the bead can also cause slow leaks on tyres, i've had it happen on the camper especially after a bit of off road work involving mud and dirt.
If you suspect the rims get a tyre place to loosen them, tyre soap the bead and refit as a first step as this is the most likely spot, if it still happens get the tyre place to inflate to max pressure and immerse in the
test tank, watch for bubbles.
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Follow Up By: Michael B - Monday, Apr 10, 2006 at 08:41
Monday, Apr 10, 2006 at 08:41
Thanks Peter,
On a serious note, have had new tyres fitted not too long ago, car is due for a service shortly so will have them take wheels off and
check just to be 100% comfortable.
Regards
Michael
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