Quote:
Originally Posted by geezer#99
I use water to clean the valves and piston tops. Trickle a little into the carb. Steam cleans the chambers.
ATF works but can be quite smoky. Neighbors might get excited. Lol!
On your mileage quest.
What carb?
What’s your initial timing?
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Sure. thanks.
Quardajet.
I rebuilt it right after getting the truck, The reason was because of extreme flooding to the point that it wouldn't run unless I gave it lots of throttle so it wouldn't drown in fuel. Found the tiny itty bitty bas#%@d clip at the back of the float was missing.
I cleaned everything, looked at the jets and rods and put it back together. The poly-plastic float was stained white like it had been sitting in bad gas but I didn't have a replacement. I think it needs one.
It starts easy, no well plug leaks, but once warm if I so much as touch the accelerator when I hit the starter it will instantly flood. I pulled one of the plugs and it's wet and black. What I mean by wet is I can wet my finger just touching the plug.
I saw the seller later and mentioned the carb kit. He said that was not the original carb but one recently rebuilt by a carb guy who built it for him specifically for that motor.
I'm not knocking the carb guy's experience because I only know enough to be dangerous, but even if I was an expert I don't think I could confidently
take an unmatched Qjet and do a rebuild for a specific motor I'd never see and call it "ready."
Figuring there was more to learn about the carb problem I did some digging using the part number and the carb belonged on a later 70's motor with a manual transmission.
If I had known all of this before I rebuilt it myself I would have checked for the correct jets and rods, but I didn't look so I have no idea what the carb guy did to make it "ready" for my '74 454.
Initial timing is either 12 or 14. I've tried both and pretty sure I have it at 12BTDC. I should be more current on my info but have been busy working on the house to do much with the truck.
Thanks again.
Randy