Thread: 280 SL problem
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Old 08-08-2001, 01:19 PM
Posts: n/a
I checked the archives, and Steve Brotherton's posts on vacuum advance and timing, and I think mine may be out of specification:

Timing is set to 4 degrees ATDC at 800RPM with the vacuum advance hose in place. When I remove and cap the vacuum hose, the timing changes to 23 degrees BTDC at idle, and 45 degrees BTDC @3000 RPM. Idle speed increases considerably with the hose removed.

Is this OK or should I investigate further?


1969 280SL
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