Re: idle mixture trouble

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Posted by Tony on August 31, 2017 at 15:41:17 [URL] [DELETE] :

In Reply to: Re: idle mixture trouble posted by Tim Daley(MI) on August 31, 2017 at 12:43:05:

Good points, especially the 6pt socket. Rusted nuts lose a few thousands surface on the flats. Doesn't seem like much but sometimes enough to allow a 12pt socket to slip. I've beaten a metric socket on a or bolt head that a nominal Imperial size slips on. Ya do what ya gotta do.

By now most manifolds have steel or a mix of brass and steel. A torch with a 0 or 00 tip can be used to heat steel nuts dull red then quench with water. Most times shock cooling them will break them free. DOesn't work well with non ferrous though. Concentrating the heat on the stud helps but........

Resist trying to turn off the nuts while hot. The squeak you hear as it makes a quarter turn are the threads galling. At that point the chapter under "extreme measures" notes the use of hand or air chisel.


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