Air conditioning went flat on my '93 S-10. Took it to my very good racing buddy friend at his garage and he checked it out. Said he could solve it for $300. R-12 of course and since noone I knew was headed for Mexico figgured I'd do the 134 switch. Low side valve leak. Hmmm. Asked about that and told it was the Schrader valve and I need to replace it. Never heard of one of those. Guessed it was one of those Chevy only parts that costs a bunch. Asked my cousin Bob. The guy was running Bonneville and El Mirage dry lakes in the late '40s then again when he got back from Korea. Ran the same myself '89 to '01. Mechanically very smart guy that never made more than $12 an hour in his life. You've met 'em. He said, "yep" you're gonna have to get a new Schrader valve.
Tried the conversion hoping they were wrong. Two big oil laden cans pumped it up. Viola, it works! Next morning it was flat. The mysterious Schrader valve must indeed be bad.
Eventually learned that a Schrader valve is what we've been calling valve cores since we were kids with bikes. 50 years for me. What disappoints is those two "friiends". Could'a been simple.
BTW, the parts store valve stems had too short a sticky out thingy for the recharge coupler to engage successifully. But, Beeman makes a crow pellet that when the tail is cut off slips over the chargers pin giving the extra 3/32. Works. Cool now. Rant off.
Tried the conversion hoping they were wrong. Two big oil laden cans pumped it up. Viola, it works! Next morning it was flat. The mysterious Schrader valve must indeed be bad.
Eventually learned that a Schrader valve is what we've been calling valve cores since we were kids with bikes. 50 years for me. What disappoints is those two "friiends". Could'a been simple.
BTW, the parts store valve stems had too short a sticky out thingy for the recharge coupler to engage successifully. But, Beeman makes a crow pellet that when the tail is cut off slips over the chargers pin giving the extra 3/32. Works. Cool now. Rant off.