where is this air coming from

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Joined
Apr 21, 2022
Messages
314
Location
san antonio texas
this is off my sons 450r, the tire is absolutely not losing any air.
its been almost 2 days, and there is no change in air pressure reading using a digital gauge that reads in 1/10 psi
somebody tell me this is some kind of chemical reaction causing the bubbles
 
chemical reaction with what?
what liquid is that? hydrochloric acid? ;)
it is leaking air. proof:
put a patch from the inside.
check again.
 
Hey chris..it has a patch on the inside ..we actually redid it a second time thinking we messed up on te first patch . I was thinking a chemical reaction from the cement interacting with the rubber of the patch and the inside of the tire .. the liquid is just soapy water
its insane ..the tire still has not lost any air .I've never seen anything like this
 
Hang in there, if its a leak it will eventually show up as pressure loss.
 
yea i figured that. its been almost a whole 3 says now and using a digital 1/10 psi gauge there seems to be no air loss.
were keeping the wheel and tire inside the house to keep the pressure at a constant .
to make sure were not missing the air that you lose when you connect the pressure gauge to it,
we set the air pressure at 36psi exactly,
with a 12v compressor inside the house
let the tire sit and cool for 1 hour
then connect the gauge and drop the pressure to 35 and let it sit for a day
then take the pressure reading only 1 time. and write it down.
which was 35psi,,
when taking a second reading it would drop to 34.9 because of the air that gets awat when you connect the gauge to the valve

for the second reading
we did all the above over again to prepare it to sit for a second day and to take another reading
the results were identical to day 1 .. 35 on first reading then 34.9 on the second

then did all it over again for the 3rd reading with was this morning.
results were the same 35 on first reading the 34.9 on second.

now were gonna let it sit for a week if he can stay off the damn thing that long...which i doubt. LOL i know thus all very rediculous
but i want to know where the bubbles are coming from .
 
The temp of the tire when the readings were taken could account for that slow of a leak.
I tried to mitigate the temp thing by keeping te tire inside ..the temp in ghe house is 78f.. I waited an hour to allow the hot air from the 12v compressor to cool down. Since those little compressors do heat the air quite a bit. It's sitting for a while gonna wait a week then take the pressure..if the reading is anything less than 35 psi then it is leaking but just very slowly... then I can accept the bubbles are just a very very slow leak..and we need to redo the patch a third time ..I was just thinking thst by the speed at which the bubbles are coming out thst it would lose air pressure pretty quickly
 

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