Those stacked plate coolers do a good job of disapating heat, and a lousy
job of having millions of places inside them to hide crap. I know this
sounds like slamming the barn door after the horse has left the building,
but, if I saw ANY metal stuff come out in a flush attempt, I would block
off the integral radiator cooler, and replace the additional remote one as
well. You should be able to flush the lines well enough to re-use them. S
and J engines has revised their warranty policy. If remote coolers are
re-used after flushing, their warranty is null and void.
Just what I do.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
> If I saw metal particles in what I flushed out of the cooler I would
> replace the cooler.
>
> Sully
> 77 royals
> Seattle
>
>
> > Finally got enough time to finish the transmission replacement this
> > weekend. In fact finished it on Saturday. Definitely not a 3 1/2 hour
> > job. I had
> > it ready to come out in 3 hours, this included removal of the drivers
> side
> > header to get to the infamous bolt on the FD that is hard to get to.
> It's
> > a snap with the header off. Also with the header off all around access
> is
> > easier. Add another 5 or 6 hours to put the new one in including
> flushing
> > out the trans cooler(s), I have an aux cooler. Speaking about flushing
> > out the trans cooler(s), I was thinking how best to do this and I ended
> up
> > using a high pressure (20psi), in-tank fuel pump, and submerging it into
> a
> > gallon jug of mineral spirits. Then connecting the output of the pump to
> > the transmission out line I backflushed the coolers into container. But
> > first I blew out the lines with compressed air pushing the fluid out of
> the
> > lines and coolers. The transfluid was full of metal particles! After
> that
> > I pumped through the first gallon of the solvent which pretty much
> cleaned
> > out the lines and coolers. I pumped another gallon through for good
> > measure and blew the lines out with air.
> >
> > All in all a real PITA job I hope never to do again, especially since I
> > mostly did myself. Did have some help hoisting up in place which really
> > saved
> > me some time. Test drive went flawlessly and no leaks. Previous tranny
> > had the Ragusa pan which leaked but liked because of the trans temp
> sensor.
> > Being that Manny's trans pan isn't leaking I don't dare touch it! Might
> > put it back on after the first filter change.
> >
> > Thanks everyone for your tips and advice. Proved very helpful.
> >
> > Jon
> >
> >
> > --
> > Jon Payne
> > 76 Palm Beach
> > Westfield,IN
> >
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