Paul:
What happens if the thermostat fails, does it fail open, closed or in
between. Has anyone ever had a failure in a RX7>

vrr

I suspect it fails open which bypasses the oil around the core.
This bypass hole you see in the picture is open when the oil is
cold. The oil rad is two pass. The small hole you see is in the partition
between the two passes as such it bypasses the core.

Can't say about all RX7's.

Paul Lamar
 
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