I'm writing with a great sense of relief and a good deal of embarasment. I
also risk firing up the Grose-Jet thread again.
Scenario: TC is parked snugly in its house. Sun shines. Owner (me)
approaches with glee. Climb in, adjust idle speed, pull choke, switch
ignition on ( comforting clickety-clickety-click-clik-clik......click) pull
starter, engine fires, tap accelerator. Running.......BADLY!
To make a long story short, I check spark at plugs - good spark. When tester
on cylinders 1 & 2 engine slows (as it should, plug shorted) on cylinders 3
& 4 no change in RPM, ergo: 3 & 4 not doing their thing. Install new plugs:
no change. Check compression: 147, 145, 143, 143, no problem there.
Exchange plugs between 2 & 3: no change. Remove air cleaner/duct. Restart.
Lift dashpot on front carb, engine slows, lift rear dashpot - nothing.
Hoist it to full stroke - diddley. Suddenly brain cramp releases - slap
forehead (literally!). Remove hammer from toolbox, gently tap float boal
banjo atop rear float chamber - (clickety - ckickety - click). Engine
smoothes right out. Revs nicely, smooth as glass.
I had a stuck needle valve in the aft float bowl and was running on the
front carb only. I'd had it running well just a few days before (it tends
to rain a bit here in Vancouver... snicker, snicker). Like most things in
life it's my own damn fault. I've got a complete rebuild kit for both carbs
still sealed in its plastic bag. Guess what I'll be doing this weekend!
I relate this experience for the edification and amusement of
___ \______ Ross MacPherson
/ __ \ __ / /------|) firstname.lastname@example.org
/ (___)---------/ (___) 1947 MG-TC 3528