Heat riser
Thread Starter
Instructor
Joined: Jul 2014
Posts: 128
Likes: 8
From: anchorage alaska
Heat riser
When should the heat riser open after starting the engine? I should see the heat riser open 7-10 minutes after starting the engine. Correct? The rh manifold should be fairly warm-just like the left side?
Drifting
Joined: Apr 2011
Posts: 1,603
Likes: 391
From: Australia
When it’s cold, reach down and see if you can open it by hand, if not, it’s probably corroded and stuck.
Last edited by anyChevy; Aug 3, 2025 at 02:07 AM.
Melting Slicks
Joined: May 2004
Posts: 2,497
Likes: 508
From: Willowbrook IL
St. Jude Donor '13-'14-'15-'16
Unless you’re driving in winter, you don’t need it.
When I had go replace mine 25 years ago, I used my dremel and removed the butterfly flapper. It looks stock, and is counterweights is still free to move.
When I had go replace mine 25 years ago, I used my dremel and removed the butterfly flapper. It looks stock, and is counterweights is still free to move.
Team Owner
Joined: Feb 2003
Posts: 54,059
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From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
Team Owner
Joined: Feb 2003
Posts: 54,059
Likes: 9,393
From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
