917601
05-02-2016, 07:52 PM
Hello,
advice needed from the experts...( you have helped me greatly in the past)...My 2.6 6 cylinder with the Zenith 175 CD carb...after a long winter it started on the first crank fully choked, running like a champ, EXCEPT I have a severe " popping" or " squashing" sound from the exhaust, engines idles good, runs good, but the tailpipe noise is noticeable and coated in black soot. Mixture problem no doubt. I adjusted the adjustment on the bottom of the carb, screw in until reduction in idle then backed out a turn....no effect. Last fall I replaced points, rotoretc, plugs and wires, timing, it ran very good with a very slight occasional pop,..now, unbearable. Where to,start? I rebuilt the carb about 8 years ago, is it time again? I read there is a mixture adjusting tool to insert in the dash pot top to set the metering rod, all thoughts appreciated.....for interest, I did make it to the CAF WW2 Days event at Falcon Field, see picture.
Thanks.
advice needed from the experts...( you have helped me greatly in the past)...My 2.6 6 cylinder with the Zenith 175 CD carb...after a long winter it started on the first crank fully choked, running like a champ, EXCEPT I have a severe " popping" or " squashing" sound from the exhaust, engines idles good, runs good, but the tailpipe noise is noticeable and coated in black soot. Mixture problem no doubt. I adjusted the adjustment on the bottom of the carb, screw in until reduction in idle then backed out a turn....no effect. Last fall I replaced points, rotoretc, plugs and wires, timing, it ran very good with a very slight occasional pop,..now, unbearable. Where to,start? I rebuilt the carb about 8 years ago, is it time again? I read there is a mixture adjusting tool to insert in the dash pot top to set the metering rod, all thoughts appreciated.....for interest, I did make it to the CAF WW2 Days event at Falcon Field, see picture.
Thanks.