Re: Back to Basics?

["content22207" <brobertson@xxxx>]

An honest to goodness backfire (vs muffler explosion) can be an eye
opener. Nothing quite like fire shooting out top of your
carburetor/upper air assembly/whatever. Is caused by spark when intake
valve still open. Allows fuel mixture to ignite backwards to metering
device.

Go back to first pulley mark before eyebrows burn off.

Muffler explosions are altogether different. Are caused by unburned
fuel igniting in hot exhaust system.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> You've all seen my flailings regarding attempts to start my car.
> Here's an interesting twist:
> 
> After reading some more and making some more phone calls I went back
> to the distributor. Despite the fact that I aligned the rotor
> correctly, and #1 piston was at TDC, -and- the timing light strobed at
> 13 degrees BTDC when checked, I was slapped in the face with the
> realization that perhaps I set the dizzy on the wrong stroke.
> 
> So I double checked that I had indeed set the dizzy for #1 TDC. Rotor
> lined up, a screw driver showed that #1 was TDC and the pulley mark
> lined up with "0" on the scale (so I didn't set to #6 piston by
> mistake). I pulled the dizzy, cranked 360 degrees and dropped it
back in.
> 
> NOW the engine back-fires a lot where before there was nothing,
> although it didn't start. I only fiddled with it for a couple of