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#1
08-27-2008, 05:25 AM
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Diverter Valve Rebuild Source Needed,... I Think?
I have a 69 SS 350 and need my smog diverter valve rebuilt, I think. On de-acceleration or between shifts I get backfire noises out of my exhaust. I never had this before, but since re-installing my A.I.R. smog equipment now I do. Any thoughts on what is causing this? maybe the gasket between the diveter valve and the tube where it attaches is bad....? Help..... Thanks
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#2
08-27-2008, 05:57 AM
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Re: Diverter Valve Rebuild Source Needed,... I Think?
Bill Hoedel has an exclusive arrangement with Don D. (ex from ASL)..... FYI
I myself would like to what the alternative is, at what quality and what price. Pretty sure Don D is only rebuilder to ever R&R Yellow Zinc cover, and replate !!!!!!!
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Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation"
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#3
08-27-2008, 05:58 AM
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Re: Diverter Valve Rebuild Source Needed,... I Think?
[ QUOTE ]
I have a 69 SS 350 and need my smog diverter valve rebuilt, I think. On de-acceleration or between shifts I get backfire noises out of my exhaust. I never had this before, but since re-installing my A.I.R. smog equipment now I do. Any thoughts on what is causing this? maybe the gasket between the diveter valve and the tube where it attaches is bad....? Help..... Thanks [/ QUOTE ] On a working smog set up...I think that this is normal (which is one of the reasons why everyone took them off...  )I could be wrong though... 
__________________
Bruce Choose Life-Donate!
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#4
08-27-2008, 06:00 AM
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Re: Diverter Valve Rebuild Source Needed,... I Think?
What you are hearing is the smog system doing it's job. It is injecting air and allowing combustion of the unburnt fuel in the exhaust.
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#5
08-27-2008, 06:12 AM
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Re: Diverter Valve Rebuild Source Needed,... I Thi
Be proud that you are doing your little part in preserving our environment!
    
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Sam...  
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#6
08-27-2008, 06:23 AM
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Re: Diverter Valve Rebuild Source Needed,... I Thi
If the system does need rebuild, I unconditionally recommend Bill Hodel!
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Follow me on Instagram: https://www.instagram.com/mbcgarage/
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#7
08-27-2008, 07:02 AM
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Re: Diverter Valve Rebuild Source Needed,... I Thi
How loud & routine is it?
You really shouldn't hear enough to be that noticeable all the time. It could be the pressure relief valve inside the diverter sticking open,or not at all.Do you have manifold,(not ported),vacuum running into the Diverter valve itself? Does the Smog system you put back on it have a working pump w/guts,or is it a dummy pump w/operating diverter valve? Just for kicks,check your dwell & ignition timing with a timing light too.
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#8
08-27-2008, 06:50 AM
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Re: Diverter Valve Rebuild Source Needed,... I Think?
[ QUOTE ]
What you are hearing is the smog system doing it's job. It is injecting air and allowing combustion of the unburnt fuel in the exhaust. [/ QUOTE ] Thanks Charley!
__________________
Bruce Choose Life-Donate!
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