Thread: spark Advance
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Old 10-18-2020, 09:31 AM   #8
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Default Re: spark Advance

Originally Posted by 40 Deluxe View Post
Yep. In fact, an old trick to get more heat from an exhaust manifold heater was to drive with the timing lever up. You could get the manifold to glow red!
Which might be a good thing to do if you plan to pull the manifold nuts/studs on any old engine. Retard the timing, run until the manifolds get red hot then shut her down and remove the manifold nuts/studs the next day. Once it is red hot it might be a good idea to advance the time and run until the manifold cools to normal operating temp before shutting down to perhaps reduce the chance of cracking the manifold.
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