Heat Riser: What Lubricant?
Thread Starter
Safety Car
Joined: Jul 2002
Posts: 4,269
Likes: 3
From: St. Charles IL
Cruise-In 5-6-7-8-9-11-12 Veteran
A CI-6 Car Show Winner
Heat Riser: What Lubricant?
I thought I remember being able to purchase a lubricant specifically for the heat riser valve. Does not seem to exist any more, so what should be used?
Thread Starter
Safety Car
Joined: Jul 2002
Posts: 4,269
Likes: 3
From: St. Charles IL
Cruise-In 5-6-7-8-9-11-12 Veteran
A CI-6 Car Show Winner
Okay, I figured out the real problem. The stop was bent which allowed the valve to go a little too far closed, and then it would stick. Once I fixed the stop everything is much better. I did work some graphite into the shaft and that cured the little squeak it had, not sure how long that graphite will last. Thanks for the advice guys. 
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
I think most lubricants would fry at the temps on the exhaust manifold...and you'd end up with sticky residue (which is not what you want). Unless there is some hi-temp lube out there, it would probably be best just to clean it out (carb cleaner, etc.--when cool, of course) and keep it working freely.
