Re: GM book on TPI/ Gas tank venting on TPI

[Shannen Durphey <shannen@grolen.com>]

Be sure to allow plenty of air into the tank.  "Wimpy" TBI pumps are
strong enough to cause the tank to collapse when nothing is allowed to
fill the volume that the fuel occupied.  Most of the fuel tanks from
middle to late 80's on up will develop a fair amount of pressure, but
the filler cap is what allows air in.

I'll third the Helms suggestion.
Shannen

rr wrote:
> 
> Agree w/Steve, the Helm's are good. '92 Camaro or Firebird
> manual covers the tpi well.
> 
> The tank is vented through a valve that will hold negative and
> positive pressure to a point. I believe that point is only a couple
> of psi. This valve is very near the tank, hung on a piece of rubber
> hose. Should be able to get one at a recycle yard or such.
> 
> BobR.
> 
> steve ravet wrote:
> 
> > Can't go wrong with the original factory service manuals, from
> > www.helminc.com.  730 was in lots of cars, so get a manual that matches
> > the application yours came from.
> >
> > --steve
> >
> > Vinnie Moscaritolo wrote:
> > >
> > > can someone tell me what the part number is for a good shop manual on
> > > the GM TPI
> > > (730 ECU) and where I can order it from?
> >
> > --
> > Steve Ravet
> > steve.ravet@arm.com
> > ARM,Inc.
> > www.arm.com
> 
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