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[Tom Greenleaf]

If you do it should be simple? It happens if so better now so you know,

[Tom Greenleaf]

OK - My Matco AC 850, the most used sniffer I'm very used to DID WORK ON 152a, right away.
If not familiar with sniffers if like this one they will...

[Tom Greenleaf]

Not so fast to judge it - yet. It may be all it's controlled to do until warmer still? Is it still feeling hot lines off compressor and cool return?...

[Tom Greenleaf]

Stay on the lower side IT'S PLAIN NOT HOT ENOUGH OUT - IMO of course. I knew the cars (owned many weren't old) took up to 5lbs of R-12. More than 1/2,...

[Tom Greenleaf]

Bit cool out but that's impressive still. Keep an eye on it for REAL air temps, right where you are as it comes in thru grille. Dripping to me just...

[Tom Greenleaf]

,Just watch center vent temps , subtract ~5F for what evap really is AND that it drips water. If not, that's too low. Hard to be sure this time of year...

[Tom Greenleaf]

Offer stands, just ask. It's somewhat useless I'VE beat on that as you'll never know what a retrofit that had a problem (leaked out) and R-12 is and...

[Tom Greenleaf]

Here's a kit that contains about all fitting for assorted retrofits NOS. It's on Ebay but shop where you wish. I'm still telling you that you don't need...

[Tom Greenleaf]

OP, unless it's destroyed you should be able to just get that fitting. Bring the cap to it's original. It's that size I think 3/16th with Shrader. You...

[Tom Greenleaf]

Ford and associated vehicles pre 134a used a smaller threaded high side OE fitting. You would use an adaptor to use had it's own Shrader so both fit...

[Tom Greenleaf]

Same here, rain and cool for a while. Was thinking about the sight glass. If you had or wanted to use one of those scopes, bendy line fits in spark...

[Tom Greenleaf]

Ambient temps? It's a problem to KNOW for sure pressures and performance is right I'll say if lower than REAL 80-90F, that being the air thru the grille....