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Member Cowboy has a '68 Sprite he's intending to sell. It needs a good home and he has a <span style="font-style: italic">real</span> car ('66 MGB) now and his wife is making all the appropriate sounds to get him to sell the thing. It was running FINE on Friday, he was intent on trailering it to a location where folks would see it... Saturday it started runnin' "funny" and he called me. He said he'd left it idling for an extended period (twenty minutes) and it stalled. Then when he tried to restart, it wouldn't accelerate. Suggested he bring the plugs to th' hovel and I'd sandbalst 'em. That done he went home and wound 'em back in but it still wouldn't run right.
Went over today and tried to chime it up. Fuel starvation, "fluffy" running and on throttle app it would go to its knees. Fuel line removal at carb supply revealed a healthy fuel pump. Lids of the bowls and couldn't see any ~horrible~ sin in there. Fuel levels equal, floats intact, needles workin'. Got a 3/8" piece of rubber hose, took off the chamber pots and pistons... held one end of the hose against the rear center jet and blew thru the thing... a petrol Mount Vesuvius out th' rear bowl. Repeat experiment on the front unit and thought I wuz tryin' to make sound from an oboe... NO amount of huff-n-puff seem'd to produce more'n a trickle of bubbles inna bowl.
Dropped the choke arm and fiddl'd the thru bolt from the carb body, lower'd th' jet out and had the jet/bowl assembly in-hand. Aerosol carb cleaner and a few more pressurizations of the bowl side (carb cleaner does NOT taste like chicken, BTW :wink: ) and the thing passed a STONE! A small lump o' crud appeared at the jet opening and felt like solidified... ummm... well, anyway, that was th' problem. Gave it a good "three times" flush with th' carb cleaner, reinstalled the jet/bowl thingie and chimed 'er up. Thing runs SWEET now!!!
Quick diagnosis, quick fix. :thumbsup:
Went over today and tried to chime it up. Fuel starvation, "fluffy" running and on throttle app it would go to its knees. Fuel line removal at carb supply revealed a healthy fuel pump. Lids of the bowls and couldn't see any ~horrible~ sin in there. Fuel levels equal, floats intact, needles workin'. Got a 3/8" piece of rubber hose, took off the chamber pots and pistons... held one end of the hose against the rear center jet and blew thru the thing... a petrol Mount Vesuvius out th' rear bowl. Repeat experiment on the front unit and thought I wuz tryin' to make sound from an oboe... NO amount of huff-n-puff seem'd to produce more'n a trickle of bubbles inna bowl.
Dropped the choke arm and fiddl'd the thru bolt from the carb body, lower'd th' jet out and had the jet/bowl assembly in-hand. Aerosol carb cleaner and a few more pressurizations of the bowl side (carb cleaner does NOT taste like chicken, BTW :wink: ) and the thing passed a STONE! A small lump o' crud appeared at the jet opening and felt like solidified... ummm... well, anyway, that was th' problem. Gave it a good "three times" flush with th' carb cleaner, reinstalled the jet/bowl thingie and chimed 'er up. Thing runs SWEET now!!!
Quick diagnosis, quick fix. :thumbsup: