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Need vaccum diagram for chevy impala 1978 with 6 in line motor with 1 barrel carb. rochester mono jet

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To the intake manifold , from your choke, choke close incoming air is restricted, adjustment of the choke via thermostatic spring coil or electric heating element, loosen the 3 screws , as spring heats up the choke gradually opens, hope this helps

Posted on Dec 31, 2016

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Where do the hoses connect to on 4 bbl rochester carburetor, it has no hoses attached, on my 79 350 motor


1979 chevy C1500
the vacuum setup varies,
by (california, Federal (USA) and export models)
where are you, or if in USA the under hood sticker shows if calif.or not.

if in usa, use the FSM (buy one used) or use alldata.com
on USA cars , (not sure starting year, this one is old) the vacuum
map is on the underside of the hood. (not not painted over,etc)

Jul 01, 2014 | 1978 Chevrolet C1500

1 Answer

57 chevy pickup, 6 cyl.. Rochester one barreled carburetor rebuild instr. Thank you


Instructions and an exploded, numbered diagram will be included with a carburetor rebuild kit. You take it apart by the numbered diagram, clean everything with carb cleaner, make sure all passages are clear and not blocked, then put it back together by the numbered diagram in exact reverse of disassembly. Make all adjustments as you go along as the instructions dictate (like float level). When done, a new base gasket, torque down the mounting nuts, and make final adjustments.

Aug 28, 2013 | Cars & Trucks

1 Answer

Chevy Engine Swap, Blazer 350 into my El Camino


Yes, the engine will swap fine, for the vacuum lines Go to Autozone.com, become member, will give you repair manual,location of parts,diagrams.

Jul 12, 2012 | Cars & Trucks

1 Answer

I have a gmc truck with a 351E v6 it will not idle there is a line opening on the back of the carb plate and a small line that comes off of the left side of the carb. Where do those lines go to? It is not...


I don't have a diagram but I think the replacement carburetor may have come off an engine that had a governor which was activated by a plunger under the distributor plate. The vacuum lines went between the carburetor and distributor. Check to see if there is vacuum at one of the lines when the engine is runnuing. If there is just plug it off. A vacuum leak could be causing your idle problem.

Jun 06, 2011 | GMC C2500 Cars & Trucks

1 Answer

Where is the fuel filter on a 1978 corvette Rocheste M4MC carb, and how do I install a new one?


it is in the housing where the fuel line enters the carb. unscrew and remove the input fuel line, then unscrew and remove the housing. take note of the direction of the paper filter you remove. here's a page with more info on that car. http://www.carburetor.ca/carbs/tech/Rochester/Quadrajet-index.html

Sep 30, 2010 | 1980 Chevrolet Corvette

2 Answers

I need tom locate a vacuum line diagram for a 1981 chevy monte carlo 2269 v6 motor with a dual jet 210 electonic feedback carburater


Please choose the correct diagram. If you nhave problems viewing it, please post your email address. Diagram is free, no strings attached. It is just too large when trying to post it full size.


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1981 229 (3.8L) V6 engine-automatic transmission



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1981 229 (3.8L) V6 engine-automatic transmission alternate



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1981 231 (3.8L) V6 turbo engine-automatic transmission

Aug 12, 2010 | Chevrolet Monte Carlo Cars & Trucks

3 Answers

I need a layout of where the vacum hoses on a 350 chevy go on a 84 full size blazer where can i get this?


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1984 350 (5.7L) V8 engine—4bbl federal and high altitude with automatic transmission


Let me know a few specifics for an EXACT diagram for you....transmission, carb size, things like that.....you can also email me hydro83282@gamil.com and I can send you more. FREE--NO CHARGE!!!

Oct 17, 2009 | 1978 Chevrolet C1500

1 Answer

Vaccume line rounting


Dist should go to rear of carb base but can also go to intake. large fitting at rear goes to brake booster. There should also be another large one for pcv valve.There other ports that supply vacuum to accessories options. Some ports on that carb are above throttle plate and only give vacuum at times when throttle is open. anything that needs full time supply should not be connected there.Block off all unused ports.

Feb 06, 2009 | 1985 Chevrolet Chevy

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