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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | Joined: Feb 2009 Posts: 269 'Bolter | | 'Bolter Joined: Feb 2009 Posts: 269 | For your manifold I would suggest removing it from the engine and seperate the intake from exhaust so you can better work on the heat valve and free it up. ...pic... ...pic... Gasket kits are readily available at your local auto parts store DADS50, I had to put the intake/exhaust manifold to see the results and take a few pics for the photo album. I have sprayed the flap with penetrating lubrication spay but that thing will not budge. It looks like the side where the spring is located is fused. The side where the counter weight is at, the spray goes threw. I was thinking of just soaking it for the week and tap it with a hammer this weekend. Do I really need this flap or can I leave it open? I know that it used to warm up the intake to a point. Bread | | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | What position is it stuck in? Is it directing exhaust gasses out? If its stuck in this position ...pic... You might have problems in the summer months with gas boiling. Starting when warm. Maybe others will chime in... If it was me I would fix it or replace it | | | | | Joined: Oct 2012 Posts: 233 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 233 | do not hammer the weighted end as it is cast and will shatter. Use a punch and only hammer the shaft.It will move about 1/4 of an inch.
1953 Chevy 3100 261 and SM420 53Chevy 31001953 Mack Firetruck 1972 Porsche 911 1986 Honda Goldwing
| | | | | Joined: Feb 2009 Posts: 269 'Bolter | | 'Bolter Joined: Feb 2009 Posts: 269 | Dads50, Here are a few pics of the exhaust heat valve. pic1 pic2 I was feeling the same, I will either fix it or brake it trying and get an other one. MtneerMike, Thanks for the heads up on not hitting the weighted side, I was doing that along with the others side. I'll get a small bunch or chisel and tap around the spring side. I'm still going to spay it through out the week and see what happens. Thank you gentlemen for your advice and guidance, Bread | | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | See if you can get your hands on some Kroil oil I'm sure you can free it up. It Does not look in to bad of shape. Good luck | | | | | Joined: Feb 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | When I managed to get my heat valve to work it took many days.
Heat ........ spray with Bitron ..... soak ........ tap, tap , tap.
Heat ......... spray ........... soak ....... tap, tap , tap , tap .
Heat ....... spray .. tap , tap , spray .............. soak ............................................ tap , tap , tap .
Heat ...... spray ......... tap tap ta pppppp .......
Heat ,,,,,,,,,, spray ....... SPRAY !!!!!!!! ,.... wait .................................................................................. tap . tap . tap tappetty tap ....
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etc
etc ........... | | |
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