The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Chevy Wrench · 08-23-2003, 01:54 AM

I've seen the balancer slip quite a few times. What I would do is pull the #1 spark plug out. Rotate the engine (by hand) until the piston is at t.d.c. Next, pull the distributor cap and see if the rotor is facing the #1 cylinder. If it isnt, rotate the engine 180 degrees, then check the rotor again. If it dosent line up in either positon ( of the piston) then the disributor is off. Backfiring through the carb usually means that the firing order is off or the timing is way off. It wouldnt hurt to double check the firing order before you start working on it. Good luck.
John

08-23-2003, 01:54 AM	#3
Chevy Wrench former desert rat Join Date: Feb 2003 Location: salt lake city, utah Home of the 3 M's Mormons, methlabs and minivans Posts: 320	I've seen the balancer slip quite a few times. What I would do is pull the #1 spark plug out. Rotate the engine (by hand) until the piston is at t.d.c. Next, pull the distributor cap and see if the rotor is facing the #1 cylinder. If it isnt, rotate the engine 180 degrees, then check the rotor again. If it dosent line up in either positon ( of the piston) then the disributor is off. Backfiring through the carb usually means that the firing order is off or the timing is way off. It wouldnt hurt to double check the firing order before you start working on it. Good luck. John __________________ 94 Chevy Silverado Ext cab 4/6 drop w/ 18's and 2500watt system (work truck). 67 Chevy swb under const. frame off custom, 20's, bagged and a large rat under the hood,and a 1940 Chevy truck under const.