tomss99

im doing one of the valve springs in the back of the driver side head..... i changed the last spring (exhaust valve) first because its the hardest to get to and wanted to get it over with.... than i go to change the next one which is the intake valve.... all is well everything seems to be going normal.... im using compressed air to hold up the valves.... as im compressing the spring all of a sudden i hear PSHHHH.... its air coming out of the intake port.... how is this possible? the valve was fine before i started compressing the spring.... any input would be well appreciated...