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Vacuum Line Routing And Carb Adjustments??!! https://slantsix.org/forum/viewtopic.php?t=18530 |
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Author: | berardo mucci [ Wed Jul 12, 2006 8:16 pm ] |
Post subject: | Vacuum Line Routing And Carb Adjustments??!! |
i just got back my carb from the rebuilders(awesome job,looks like new) and i'm going to install it but i need to know where some of the vacuum lines go. i know the pvc and timing advance lines but not the others.its a carb from a 76 valiant on it now (the car is a 68 polara 500) but i was told its a holley(original carb was a holley 1920).also what i have to do to set it up.i'm somewhat mechanically inclined but don't get to advanced on the terms or process.thanks ![]() |
Author: | mrhite65 [ Wed Jul 12, 2006 8:22 pm ] |
Post subject: | |
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Author: | berardo mucci [ Wed Jul 12, 2006 8:32 pm ] |
Post subject: | |
THAT EXACTLY WHAT I'VE BEEN AFTER,THANKS!I GUESS THE FUEL BOWL VENT JUST STAYS OPEN(NO HOSES GOING TO/FROM IT)?ALSO I'M AFTER STEP BY STEP CARB ADJUSTMENTS.THANKS AGAIN!! |
Author: | DusterIdiot [ Wed Jul 12, 2006 9:00 pm ] |
Post subject: | Bowl vent? |
Does your model have the tube out the top of the carb? If so that's supposed to go to the Charcoal Cannister/Vapor collector on the late model cars...I think on yours you can get a 1975-ish 3 nipple fuel filter and connect that hose to the 3rd orfice on that particular filter... -D.Idiot |
Author: | berardo mucci [ Wed Jul 12, 2006 9:15 pm ] |
Post subject: | |
does it really matter if i just leave it open and not connected anywhere?i have no canister and its just a see through fuel filter on it now(to see the bubbles that have been driving me nuts trying to figure out,maybe boiling,maybe line taking in air?) |
Author: | DusterIdiot [ Thu Jul 13, 2006 7:37 am ] |
Post subject: | Uh yeah... |
Quote: does it really matter if i just leave it open and not connected anywhere?
It'll run fine, but you have two future things to worry about: 1) if the needle/seat assembly sticks open the tube will puke all your gas out over the manifold (depends on the gas and filter quality) 2) if your manifold gets hot and boils the gas in the bowl, it'll all come out the tube and onto your hot manfolds. You can plug it with rubber plug, the excess will go out the pitot tube in the carb throat and flood the carb if something goes wrong. -D.idiot |
Author: | KBB_of_TMC [ Mon Jul 17, 2006 9:26 am ] |
Post subject: | bubbles |
After the car's run a few minutes, you shouldn't see new bubbles appearing in your fuel - it suggests you've a leak between the tank pickup and the pump - that area is under partial vacuum. An air leak can greatly decrease the amount of fuel reaching the carb. If you only see bubbles with it really hot, then it may be the fuel boiling... also bad. |
Author: | mopardon [ Mon Jul 17, 2006 10:53 pm ] |
Post subject: | fuel filter bubbles |
For what it's worth - I had them and, per postings here, upgraded to new and better hose (post-pump) and FI-type clamps. No more bubbles, but I can't explain it. Good luck. |
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