Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC TrucksFilling StationSHOP ONLINE | ONLINE CATALOG | ABOUT US

Forums
General Discussion
General Discussion
38 heat riser
 
Notifications
Clear all

38 heat riser

 
    Last Post
 

JSchildberg3
 JSchildberg3
(@john-schildberg)
Reputable Member Registered
Joined: 10 years ago
Posts: 187
Topic starter October 11, 2026 4:44 pm  

Can anyone tell me why my heat riser sometimes works and other times it is stuck solid.  The spring seems to work but that wouldn't make it frees up. I was written up at the car show in Rapid City, and I want to fix it.   Also, where does the anti-rattle spring go?


Southwest Iowa


   
Quote
David Dunton
 David Dunton
(@david-dunton)
Estimable Member Registered
Joined: 18 years ago
Posts: 153
October 12, 2026 4:47 am  

What car show was checking heat riser operation?



   
ReplyQuote
Steve Dalphonse
 Steve Dalphonse
(@steve-d)
Honorable Member Registered
Joined: 36 years ago
Posts: 479
October 12, 2026 5:29 am  

I think the shaft clearance and temperature in the manifold may have something to do with intermittent operation. It might just need cleaning and would be good to do before it completely locks up.


7472 old site post


   
ReplyQuote
JSchildberg3
 JSchildberg3
(@john-schildberg)
Reputable Member Registered
Joined: 10 years ago
Posts: 187
Topic starter October 12, 2026 5:39 am  

@david-dunton David, it was the 65th anniversary meet at Rapid City


Southwest Iowa


   
ReplyQuote
JSchildberg3
 JSchildberg3
(@john-schildberg)
Reputable Member Registered
Joined: 10 years ago
Posts: 187
Topic starter October 12, 2026 5:45 am  

@steve-d I think you are right Steve, it was a little warm at Rapid City.  But I will see if I can Get it out without too much trouble.


Southwest Iowa


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share: