77Adam77 Posted February 17, 2015 Report Share Posted February 17, 2015 So I searched and could find anybody with this problem or question....About to reconnect all my smog stuff on my 77. It's been disconnected for who knows how long (I've driven it three years like this don't know bout before). I'm wondering if I can expect those air injection tubes going into the exhaust manifold to be completely clogged with carbon build up..? On my list of stuff to get in working condition so far is Air filter for air pump Air pump Air check valve Egr valve Anti backfire valve Thermal vacuum switch (also called ported vacuum switch) Don't know if anything on the aircleaner is working (idle compensator temperature sensor)... This is more a preemptive troubleshoot while I get any parts refurbished/bought as the hitachi needs a full rebuild I'll have time to learn and find out what to be expecting... Ps thanks for helping out over the years never needed to really ask any questions till recently just been lurking in the shadows. Oh yeah heres a oic for the hell of it. I'm on right. EdwardK in left. Quote Link to comment
datzenmike Posted February 17, 2015 Report Share Posted February 17, 2015 I would doubt they are clogged. If being inspected they won't be pulling and looking at them anyway. Quote Link to comment
77Adam77 Posted February 17, 2015 Author Report Share Posted February 17, 2015 My main concern is that they wouldn't function from being clogged. As long as they do their job I'm happy! They don't have any smog laws here in Clarke county georgia. But might be Cali bound soon... Quote Link to comment
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