When I had a cracked head, (#2 cylinder) cylinders #1, 3, and 4 showed
normal when doing a compression test.  Number 2 wouldn't come up to
anything near the others and wouldn't hold the pressure at all.

I determined this prior to removing the heads.  After removal, I had
them pressure tested at a machine shop and, as expected, only #2 failed.

Mike
'84 GL 7 pass
'85 GL Westy

Zoran Mladen wrote:
> Hey folks,
>
>   On our 89, we are having an overheating issue that is stumping us.  Here are the symptoms:
>
>    - Seems to heat up quickly - compared to our 84 teh needle moves up quicker
>    - Radiator is hot
>    - Both lines to/from radiator are hot
>    - Cooling system has been bled
>    - Radiator fan is coming on
>    - Appears to be some bubbles in the reservoir - almost like a foam
>    - Gets hotter and hotter at idle till the gauge is almost to max hot and starts blinking
>    - On highway, stays hot and the light will start blinking; opening front heat valve tends to stop the blinking but tempo gauge needle does not move down at all
>
>   Had the problem and did head gaskets and o-rings.  Problem still there.  There is a new waterpump already installed.  My guess is either a bad thermostat or a cracked head.  Is a bad thermostat a poosibility - since the radiator and lines are hot?
>
>   Any ideas - PLEASE offer them.
>
>   Thanx in advance...
>
>   Z
>
>
>
>
>
> ---------------------------------
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