OldCuby
FRIEND
Harpers Ferry, WV
I have a rebuilt carb newly installed before my trip to Maine. On the way up I noticed it could not be leaned in the usual way at cruise altitudes (5500). About 1/4" pull from full rich stop on mix control, the rpm starts to drop. So I kept it at "full rich." On first leg measured 8gph between fuel stops so was not too worried. Running 2400rpm. But next leg 7gph! Now worried. I noticed more rapid oil temp rise on climb and higher Temps than I recall with old carb at say 55 deg air temps. Other than immediate takeoff, I've been now flying at much reduced power to avoid any overheating.
Stopped at Twitchell 3B5 yesterday and we eliminated intake leak problems. Engine has good compression at 2050 hrs smoh. Twichell agrees must be replacement carb since I had no problem like this with old carb.
Marvel-S in North Carolina sells their rebuilt carbs but will not do an overnight exchange. I'd have to send my carb back for warranty work. I wanted to fly around Maine and of course I need to fly home. Twitchell will change carbs if I can find one. I've yet to contact my engine guy back in VA.
Now you all know reason for my request!
Jim Three Oh 4 Six 7 six 487 four cell.
Stopped at Twitchell 3B5 yesterday and we eliminated intake leak problems. Engine has good compression at 2050 hrs smoh. Twichell agrees must be replacement carb since I had no problem like this with old carb.
Marvel-S in North Carolina sells their rebuilt carbs but will not do an overnight exchange. I'd have to send my carb back for warranty work. I wanted to fly around Maine and of course I need to fly home. Twitchell will change carbs if I can find one. I've yet to contact my engine guy back in VA.
Now you all know reason for my request!
Jim Three Oh 4 Six 7 six 487 four cell.
