Jim,

This is what my 85 started to do after a brand stankin
new set of heads and gaskets, I asked the shop about the
heads sealing correctly and they told me, " oh we have nothing go bad with AMC heads and the gaskets and have
learned threwout the years what make a good seal. * anyway
long story short I replaced the overflow tank and expansion
tank cap to only have bubble start moving in my overflow
tank and expansion tank. ( I told them the head gaskets )
had to be causing the air in the system. ( bleeding did'nt
fix the issue after about 200 or so HWY miles it would never
put the coolent back into the expansion tank on dumping it to my overflow causing a puke fest. kinka like drinking to
much beer only one way to go out not back in :)

Anyway the shop replaced the gaskets and I have better luck
with this go around, I have about 3000+ on this set, it had me totalt worried because i was in oregon with my family and
this is the last place for something to go wrong.

ohh BTW the shop after telling them and telling them cracked
open the lower half of the motor to find what I had been telling them, they said the found a gasket violation. They
were never leaking and the 1.9 had much power but noticed
a power drop after some time. I

Joe

On 04 Dec 2002, Jim Morgan wrote:

> Hello all. A brief update on my 86 gl. A month
> ago my coolant tank sprung a leak . Replaced
> it and was trying to find the reason why.
> Found that I am getting exhaust gases in the
> system. Only when it is stone cold. After 5
> min no more bubbles. N external evidence of
> colant leaks. It would seem that i can go a
> week and the tank is down by 1/4 ( air space).
> Has never over heated and runs to mid l.e.d.
> on the gage. I have gotten rather good and
> quick bleeding the system.
>
> I know that it is head replacement/repair
> time. I have access to two known good (FREE)
> engines( parted out running vans) but would
> like to run them on a stand to make sure the
> heads /cylinders are not leaking. This is
> going to be my spring project so I have some
> time to sort this issue out. Any ideas as to
> how i can set this up?
>
>
> Jim Morgan 86GL "breadbox) 202,000.0 miles