justineverything@[EMAIL PROTECTED]
wrote:
> I have purchased a 70 mustang with a 351w out of
> a ford torino. The
> car starts up and moves but was back firing out
> the carb as well as
> falling on its face after a short distance. The
> car smells like its
> running rich I was thinking that the car was
> loading up and that the
> timing was off. After messing with the car some
> more I found that the
> spark plug fire order was off. So I changed the
> order to what a 351W
> was calling for and yes I went counter clockwise
> on the cap. Although
> that didnt do a thing for me. after I changed it
> it would not start at
> all... So I thought Maybe I have a 302. So I
> tryed the fire order for
> the 302 and It fires over. although it hasnt
> back fired since out the
> carb, it still smells like its running rich or
> possibly running to
> much fuel. I investigated further and looked up
> the part number on the
> Intake manifold and it came up as 351
> exclusively.... so my next
> question would be WTF! how does a 351 fire on a
> 302 fireing order, and
> if it is a 302 why or how did someone put a 351
> intake manifold on it?
> I am about to loose my mind..
>
> As of now with the 302 fireing order, I place
> the car in gear and it
> basically loads up... looses power
>
> Any suggestions?
There's no real differance between a 302 cam
and a 351 cam - except the firing order. Other
than that, they are interchangable. In some
years, it's the same. In other years, it's not.
Whoever swapped the motor may have installed a
differant cam for some reason. You have to try
and figure out the proper firing order. Here's
how to do it:
Remove the spark plugs, and the valve covers.
Place a marker (blue masking tape) on each intake
valve rocker arm.
Place the engine at TDC, with cylinder #1on the
compression stroke.
Use a socket and ratchet to turn the engine over
two full rotations.
As the engine turns over, watch the intake rocker
arms. As they start to open, write down the
number
That's your firing order.
Who ever had the car before you, may have
been using the incorrect firing order. You can
make the car run, but not well. They may have
compensated by putting in the wrong jets, or
placing the base timing at some wierd setting.
Once you set the correct timing order, then you
can check everything else.
--------
..boB
2006 FXDI hot rod
2008 Mustang Coupe
2001 Dodge Dakota QC 5.9/4x4/3.92
1966 Mustang Coupe - Daily Driver
1965 FFR Cobra - 427W EFI, Damn Fast.
|
