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**jabborabbo** · 06-16-2018, 11:41 AM

On my 67 L6 the thing flops back and forth as soon as I crank the engine...it’s also in the general vicinity where I’ve located my manifold leak. The coil spring isn’t broken - I can operate it by hand with the engine not running. Anyone have any experience or thoughts about this????

06-16-2018, 11:41 AM	#1
jabborabbo Senior Member Join Date: Apr 2013 Location: Podunk, Texas Posts: 739	Heat riser valve... On my 67 L6 the thing flops back and forth as soon as I crank the engine...it’s also in the general vicinity where I’ve located my manifold leak. The coil spring isn’t broken - I can operate it by hand with the engine not running. Anyone have any experience or thoughts about this???? Attached Images Last edited by jabborabbo; 06-16-2018 at 12:00 PM. Reason: Add pic