I know this might be a tough one. But, does anybody know of a source for such a thing? The specifics: 1967 Buick Skylark with factory AC. Everything I read says not to even try to flush the old one. The muffler is a wierd little bugger; based on the shape and where GM mounted it under the fender! I will probably just eliminate it if all else fails. Any advice or assistance is appreciated.
I've never seen one as a Chevy mechanic, back in the day. Some here have had a hose made that eliminated the muffler. I have a '69 Skylark with air that I am gutting to upgrade my '68 California GS. I may well eliminate the muffler. I'll have to look at mine to see why it is not recommended for reuse. Lots of BS on the intertubes.
Check out the thread, "anyone delete their muffler". I posted the pics of kinda a before during and after. No , issues, pressure checked my welds.
Does any other car line like Oldsmobile or Pontiac use this? If not, I'm going to eliminate it on my car when I do the A/C.
UPDATE: Eliminating the AC muffler on a 1967 Skylark is a real problem! It's inlet and outlet tubes remind me of a pig's tail... to some extent. It snakes it's way from the condenser through the radiator cradle to a position behind the headlights and under the passenger fender. Then it comes back out into the engine bay a foot or so back from the cradle. So, I went to plan B. I inserted an old speedomoter cable into the muffler and discovered it had only one internal baffle. And, the baffle didn't fully separate or divide the insides. It seemed more like a half moon shape restriction. First: I flushed it with brake cleaner and followed that with thinner. Second: I secured an old pot that held about 4 gallons and filled it with water and a some degreaser liquid soap. Third: I brought the contents to a rolling boil and dropped the muffler in. I let it go for about 15 minutes, then drained the muffler. I kept repeating this process until the water came out clean! Actually, I was pretty lucky. It wasn't very dirty to begin with. Fourth: Once it had cooled down, I blew the excess moisture out with compressed air and poured in enought PAG 100 oil to keep the insides from rusting. Then the excess oil was drained. We'll see how that goes.
