Slant Six Forum https://slantsix.org/forum/
Response https://slantsix.org/forum/viewtopic.php?t=58530	Page 1 of 1

---

Author:	ddonner [ Tue Oct 13, 2015 9:32 am ]
Post subject:	Response
There doesn't seem to be any sideways throttle shaft movement. And the float seems to be good. By the way, the carb is a factory rebuild that's maybe 8 years old with maybe 6K miles and had previously been running fine. I've been trying to think of anything else that might cause a sudden drop in rpm upon braking -- maybe an intermediate vacuum leak that opens up when the front end dips? Maybe a change in timing somehow (and I have the HEI conversion)? But I haven't been able to come up with anything. And, its the "front end dipping" that causes the change. Braking while stopped doesn't change the revs. I think I'll go out and get it idleing and jump up and down on the bumper and watch for something that moves that I haven't thought about. Don

---

Author:	wjajr [ Tue Oct 13, 2015 11:15 am ]
Post subject:
Perhaps low fuel level in bowl that sloshes forward during a nose dive disrupting fuel delivery to idle circuit. Perhaps some crud in idle circuit. Perhaps it is time for a rebuild kit, as today's fuel is not old carburetor friendly causing corrosion of pot metal. Or it is time for new shocks, and HD torsion bars. LOL

---

Author:	ddonner [ Tue Oct 13, 2015 2:23 pm ]
Post subject:	Reply
idle circuit is a real good possibility. I guess I'll pull the Holley apart again and re-do the internals cleaning. I THINK the float is working ok, although that would explain it. I'll take another look at it while things are apart. Front end. Well there's a world of parts (torsion bars, tubular uppers, re-enforced lowers, etc) sitting in the shop waiting for time. I thought the time would be this fall, but its looking more like spring -- life being what it is. Thanks for the suggestion. Don

---

Page 1 of 1	All times are UTC-08:00
Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/