[Shotimes] EGR revisited

[Alan Fanning]

> Thanks for all the info and suggestions yesterday. I pulled the throttle body
> off the intake last night and low and behold, the 2 "nostrils were clogged
> shut. So I start cleaning them out with a coat hanger just as the article
> mention on the Showtimes.
> Should I be able to run a coat hanger all the way through to the EGR valve?

Not from the nostrils, which intersect a short, vertical bore that is also
capped by an allen screw (the opening of this bore faces downward with the
intake installed). A horizontal bore (capped by the allen screw you tried to
remove) runs from the EGR area to the above-mentioned vertical bore.

> There is an alan screw on the back of the intake facing the firewall beside
> the EGR valve and I assume that is the plug mentioned in the article. That
> sucker wont budge. Can I just remove the EGR valve and clean out the passages
> that way? 

Not very well. You need to find a 3/8th's drive allen wrench, a breaker bar,
and some penetrating oil.  Remove the EGR valve from the intake and pull the
intake off the engine. Now you can get to both the allen screws and have a
straight shot through the bores behind the allen screws. This doesn't clean
the the nostrils though. To do that, the best solution IMO is to separate
the intake into three main assemblies, so you can attack the nostrils from
the left side and go clear through and out the right side with a twisted
wire brush (see McMaster-Carr) and a generous helping of carb cleaner.

> My worry is, if I should be able to run a coat hanger all the way
> through those 2 nostrils then I'm doomed because the carbon is paked pretty
> tight in there, I can get the coat hanger in about 1/2 inch on each one and
> thats about it.
> Any thoughts? 
> 
> Thanks
> again
> Rick