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Topic Summary

Posted by: RussellL
« on: November 01, 2010, 12:55:49 AM »

Thanks to everyone.  That old thread and the video it links to are the perfect answer.  I have my weight on wrong, facing in towards the engine and the spring needs to be above the the stop.   I'll have to change the setup.  

I'm copying the link to the video here to make it current.

http://www.youtube.com/watch?v=c5a4AjyGcDg

Thanks again.
Posted by: Doug
« on: October 31, 2010, 11:28:58 PM »

The problem may be the spring. � Some of the aftermarket springs (omix ada) do not react properly to heat and do not expand when warm. � I compared a cheap repro heat reactive spring with a NOS spring and the difference was amazing. �I could put a propane torch directly on the cheap repro spring for ten minutes and it would not move any. �I could use a kitchen match and the NOS spring would expand significantly. � If you have it set up properly and it still does not work, get another spring. �Also, make sure your flapper valve is not frozen due to corrosion. �If so, you will have to spray oil on the shaft ends and slowly work it by hand to free it up. �If it is corroded, it may take several days of penetrating oil and working the valve by hand to free it up. �

Also, when setting up the valve, the spring end goes on top of the protruding end of the z shaped bracket.  As the spring expands it exerts a downward pressure which rotates the valve up and open.  
Posted by: p3ferris
« on: October 31, 2010, 06:11:42 PM »

http://www.thecj2apage.com/forums/heat-riser_topic12389_post104435.html#104435
Posted by: RussellL
« on: October 31, 2010, 03:10:00 PM »

Can anyone post a picture of a heat riser properly set up?  I am wondering if I have the spring on mine set properly.  It doesn't seem to move much as the engine heats up.  

Thanks