Dana,
Just a guess, but you might want to check the intake manifold for a leaking
water jacket, and/or problem with the intake manifold gasket. At higher
RPMs the engine may be sucking coolant from the intake manifold area.
Fred
________________________ Reply Separator ___________________________
> Subject: New head, same problem
> uthor: "Dana Nojima (CBN)" <noji@mail.ahc.umn.edu>
> Date: 4/19/2000 12:20 PM
>
> List,
>
> I've replace the head with the valve seat that had dropped down.
> Unfortunately the car is still not running correctly. At about
> 3000rpm the car stumbles. This happens in all gears. It comes up to
> 3000 without any problem then it stumbles/backfires. Potential
> problems are most likely fuel or spark, so I've put in a new fuel
> filter, cleaned the screens around the banjo fittings. Made sure
> there was nothing blocking the needles/seats and blew out the fuel
> line. The spark seems fine at all cylinders and all the plugs have
> the correct light brown color.
>
> Something that doesn't seem correct at all is that there is
> potentially antifreeze being puked out of the front set of carbs.
>
> Becouse the car acted this way before I put on the new head, my guess
> is that there isn't a problem with the new head gasket.
>
> So what else is left? What would a cracked block act like?
>
> Other ideas?
>
> Thanks,
>
> Dana
> ___~@ \__ Dana Nojima
> ( ________ ) noji@snowman.med.umn.edu
> _____0________0_____ VA San Francisco
> (415) 221-4810 x 2031
>
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