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forums.hotrod.com > ... > General Mopar Technical Discussion Jan 21, 2013 - 440 HP2 #2 cylinder won't fire, good compression Page1 - Discuss Corvette, ... Replaced distributor cap/rotor, wires, plugs - no change ... I need to find the notes I took but my recollection is both were within 10% of the others ...
www.allpar.com/fix/carb-tuning.html Tuning carburetors on Chrysler, Dodge, and Plymouth vehicles. ... Warm the car upby driving it around for a bit, then connect the vacuum gauge to intake ...
www.rv-coach.com/current_category.2178/.../forum_thread_full.html?... Aug 4, 2005 - 100+ posts - ā100+ authors
My son has a 77 dodge powerwagon with 440. went to replace starter, ... I have changed out the carb, fuel pump,filtters, and coil. .... We have put in a new ignition module, spark advance (vacuum), coil, ... I have a dodge 1 ton Cary Van. ... Where can I find tuneup specs for the '80 440 engine, like plug gap, ...
? 4:24 www.youtube.com/watch?v=RRcxiDKjzdY
Oct 13, 2009 - Uploaded by 4x4maniac89
Mean Green's carburetor was all gummed up so I took it apart. ... Sometimes it just takes some fine tuning ..
could be a multitude of things. Firing back through the carb usually is caused buy timing issues. The distributor has a vacuum and a mechanical advance. If the advance is not properly functioning the engine will be low on power and may fire through the carb when accelerating.
Could be a damaged cap or rotor, or a lean fuel mixture. You could try running the engine with the choke partially on to rule out the lean fuel mixture theory. It could have a faulty accelerator pump in the carb, or dirt in the carb. A cracked cap could cause the rotor to fire the wrong plugs under load.
If you have spark at the right time, compression, and fuel, you should have combustion. Was it running before you had the work done ? Is it possible the distributor timing is off ? You know for sure the plugs are firing, not just the coil ? And the accel pump in the carb is spraying gas ? And the choke is closed ? A major vac leak like the PCV valve hose or intake gasket could keep it from starting.
do you hear a pop pop poping under heavy acceleration or just one big back fireing when first accelerating? it could be an intake valve pop pop poping,and electrical,on the big bafireing under lite to med load. A cracked,or worn cap and rotor,weak coil wire,dirty carbruator,faulty accelerator pump in carb bad vacumn advance !slow ignition timing. BAD points and condenser if equiped on older model with carb.
Pull the plugs and look at them if they are black take a look at the carb. generally though bad plugs will give you a high speed misfire unless they are totally shot. A bog from thje carb is generally due to a bad accelerator pump (inside) or a bad power valve (also inside). Accelerator pump should give a visible squirt when you look into the carb and move the throttle linkage (do with engine off).
Timing should advance when accelerated. You have the vac on the distributor hooked to manifold vacuum. It needs to be on ported vacuum. And your base timing could be higher. I would set it at ten degrees.
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