Quote:
Originally Posted by werminghausen
Best solution would be what Nutmeg described...lifting idle when hot. That would solve a lot of issues I have.
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At idle, the timing is normally retarded by about 5 deg by the vac pod on distributor. This causes higher engine temperature. But when A/C is on, the valve between the vac pod and the throttle body closes and vac retard is disabled.
You might check to see if the switchover valve is there, connected properly and working.
Don't recall how you set your timing, but increasing advance to 27-30 BTDC made my engine run cooler.
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Graham
85 300D
,72 350SL, 98 E320, Outback 2.5