1980 928S Euro Timing
Pro
Joined: Jul 2002
Posts: 659
Likes: 1
From: Kristiansund, Norway
M28/11 + M28/12:
Timing is not set at idle but at 3000 rpm. With vacuum pipes detached it should read 26° at 3000rpm.
At idle, it should drop to 14° - 18° but that is just a check, the timing at idle is not important, it is in the rpms where you drive that matters.
Timing is not set at idle but at 3000 rpm. With vacuum pipes detached it should read 26° at 3000rpm.
At idle, it should drop to 14° - 18° but that is just a check, the timing at idle is not important, it is in the rpms where you drive that matters.
Thread Starter
Track Day
Joined: Aug 2007
Posts: 15
Likes: 0
From: Stratford, Oklahoma
I have the M28/12 Auto and it seems not to be running up to snuff like I think it used to, as I have not been driving it as much, and also don't have 98 Octane leaded fuel either. Found a place to get some 104 leaded fuel which I will see if that will run like I remember. Thanks
