Vazlov1949 Posted July 23, 2009 Report Share Posted July 23, 2009 Need advice about my heat riser on my 49 Pilothouse stock motor. Mine just flaps loosely back and forth. Can it be fixed without removing the manifolds? The spring seems to be overarched or is too loose to work with changes in temp. Since it doesn't work should it be turned all the way clockwise or counterclockwise for a cooler running engine? Anyone have photos or diagrams showing an "x-ray" view of the heat riser and which way is open and which way is closed? In other words which way to divert heat to the intake and which way to divert heat away from the intake? thanks Steve Quote Link to comment Share on other sites More sharing options...
greg g Posted July 23, 2009 Report Share Posted July 23, 2009 Do a search, this has been mentioned and illustrated several times with pictures and illustrations. As far as possible clockwise it the summer position. Seen lots of the with and old pair of vise grips clamped on keeping it that positioin. Quote Link to comment Share on other sites More sharing options...
Vazlov1949 Posted July 23, 2009 Author Report Share Posted July 23, 2009 Maybe I'm obtuse but I did do a search for "heat riser" and found no pictures of an "X-ray" view. But knowing it should be all the way clockwise is good enough for now. thanks Quote Link to comment Share on other sites More sharing options...
greg g Posted July 23, 2009 Report Share Posted July 23, 2009 http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=14985&highlight=heat+riser Quote Link to comment Share on other sites More sharing options...
Tom Skinner Posted August 9, 2009 Report Share Posted August 9, 2009 Vaslov1949, oldpartstom@aol.com sells springs and heat riser kits with instructions. get it fixed and your car will run much better. It sounds like your spring is not adjusted right, however when you repair it yourself it will be right. Like the old saying goes - if you want something done right then do it yourself. To leave it be as open only burns rich when cold (cold out) and fouls plugs. Read the Forums Texhnical section on it and if that doesn't help buy Old Parts Toms spring with instructions and repair it. Somewhere around $30 Tom Quote Link to comment Share on other sites More sharing options...
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