rebuilt carb, whistling sound and idling high and small pops/backfires
Forum: C3 HVAC, Fuel, Emissions, and Exhaust
25 Messages
Page 3 of 3
Sponsored Content
Thanks guys,
2. i can understand that, worth a check.
3. the fuel line rotted, i repaired it, then the fuel pump went out, replaced it(twice, first new one was DOA), then carb got gunked up, so i had to rebuild it.
4. i really do believe this to be the case. i've been looking for someone around here. otherwise, learning all i can while the search continues.
5. i've read about bad power valves, even new. it def would be my luck at this point! haha!
Gary, i took the screw out. the new gasket i put on after the rebuild caused the leak. took the new gasket off, because the riser has a rubber gasket, and everything was fine after. i've apparently never used that vaccuum port for anything before. as it is now back to like it was. i'm not sure what vacuum i'm using. i can figure it out pretty quick though.
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
SPONSOR AD:: (Our Sponsors help support Vette Registry)
been busy, and now its getting cold. 29 today and 13 tonight... anyhow, i started her up last night, she idled ack at 800 petty nice, couple of revs, still good. i turned the idle mixture screws, nothing they are completely closed and doesnt seem to have any effect. so i gotta pull the carb apart again right? also notice the secondaries dripping, and (forgive the stupid name) silver thing on top of the carb that shoots the fuel when you rev it, only shoots out of 1 side. i had pulled it and cleaned it out and it was clean on both sides. maybe got some other gunk in the carb?
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
Just wanted to follow-up and see how it was going?
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
thanks for checking back in. i havent done much with it for a week or so. been researching and i seems that since the idle screws seem to do nothing, or very little, i may have to pull the carb apart again...it hasnt gotten above 40 here and below freezing at night. my garage is detached and not heated, so it may be a while before i pull a heater out and try again. im busy gettting the kids ice rink set up and making sure the house is ready for winter!
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
Here are 2 pictures attached of
the rubber boot that I found on accelerator pump in a Q-Jet Carb of
mine.
I had Ron at Carb shop take apart the
BBC carb to determine why it,while connected up to fuel line and fuel pump, flow
out of the center of carb and out the accelerator pump
area.
Ron took apart carb and found a few
internal parts corroded and replaced the blue part is part of accelerator along
with cleaning out bits and pieces of rubber etc. in float and needle and
seats.
This carb had about 3 weeks of
running on my '72 truck and then took off of truck and in
storage..
These corroded parts and deteriorated rubber is a results of the ETHANOL gas we are subjected to by the Government.As
the fuel sits in the carb,it eats at the rubber internally and corrodes metal
parts etc.
As long as you use the vehicle
daily,you should not too much of a problem...
Thanks Congress!!!
Unfortunately I did not drain and
rinse with mineral spirits before storing,shame on
me..
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
in Forum: C3 HVAC, Fuel, Emissions, and Exhaust
Sponsored Content