Exhaust heat riser. Get one that works or plug it and forget it?

[bull]

My exhaust manifold heat riser is shot like so many of them are and I'm not too excited about the prospect of buying another one that might eventually jam and screw up my engine. Would you guys be more apt to jettison the riser, weld the holes shut and pretend it was never there or get a new one? Mine is not going to be a 100 points show car or 100% original. I think I know what my answer is already...

[femtnmax]

You can remove the valve as your suggesting, take apart and block off holes, or jam it full open and wire it so it can't close.   Many mopars had exhaust valves ruined on one head by heat riser valve stuck closed, forcing all the exhaust from one cylinder bank thru the intake manifold heat cross-over.
Either replace with 100% functional valve, or accept that the engine will be a little slower to warm up in cool weather.   For the cost I"m with you...get rid of it.

[8WHEELER]

My wife's valve was loose and noisy when I bought it. I put a clamp around it to hold it open for years.

Then the one time I took it off, I welded it open on the inside, looks great, looks stock, and no worries.

Dan

[elacruze]

My exhaust manifold heat riser is shot like so many of them are and I'm not too excited about the prospect of buying another one that might eventually jam and screw up my engine. Would you guys be more apt to jettison the riser, weld the holes shut and pretend it was never there or get a new one? Mine is not going to be a 100 points show car or 100% original. I think I know what my answer is already...

Wire it open and get an electric-choke Quadrajet!

[y3chargerrt]

Quadrajet??

[tan top]

have the heat riser working , when i'm running the stock intake & AVS , but wire it open   when i put my thunder 800avs , with manual choke , & weiand stealth intake , with blocked off valley tray ,   aluminum in takes need all the help they can with heat reduction 

[elacruze]

Quadrajet??

Yeah you know, the ones that came on Chevy Vans in the '80's.

[firefighter3931]

Weld the holes and remove that silly flapper 


Ron

[maxwellwedge]

My wife's valve was loose and noisy when I bought it. I put a clamp around it to hold it open for years.

Then the one time I took it off, I welded it open on the inside, looks great, looks stock, and no worries.

Dan

I keep all the outside stuff on, remove the flapper and pin the shaft on the inside to keep the shaft centered so everything looks stock. I can't comment on your wifes maladies!  

[maxwellwedge]

You can remove the valve as your suggesting, take apart and block off holes, or jam it full open and wire it so it can't close.   Many mopars had exhaust valves ruined on one head by heat riser valve stuck closed, forcing all the exhaust from one cylinder bank thru the intake manifold heat cross-over.
Either replace with 100% functional valve, or accept that the engine will be a little slower to warm up in cool weather.   For the cost I"m with you...get rid of it.

I burned a valve once with a stuck heat riser - I got rid of the flapper from that day on all my stuff. 

[bull]

Is there anything special to know about welding on manifolds?

[Cooter]

Weld the holes and remove that silly flapper  


Ron

ZACTLY!!

Bull, just tap the holes with a tap and run bolts in the holes...Works great..

[1969chargerrtse]

Mine went rattle rattle when the engine was cold.  I ripped it out and put a short bolt in each hole. Nice and quiet now.

[bull]

I keep all the outside stuff on, remove the flapper and pin the shaft on the inside to keep the shaft centered so everything looks stock.

Most of my outside stuff is gone but you used to be able to just get the counter weight and flapper stuff from Year One...

[A383Wing]

Bull, I removed all of mine on the 3 Chargers and put pipe plugs in...just had to tap the holes