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914World.com _ 914World Garage _ Looking for an engine exhaust gas analyzer

Posted by: ! Feb 11 2004, 07:22 PM

Anyone know of one that has been decommisioned by a gas station due to the new smog regs?

Posted by: Malmz Feb 11 2004, 07:40 PM

I think there is an old school one at a parts store in Woodland Hills. Big-arse unit that would be cool in your workshop. If I remember correctly, it has a tach and dwell on it too. Call Affordable Auto Parts in Woodland Hills to see if it's still there.

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Posted by: TimT Feb 11 2004, 07:45 PM

why not that gunson gas tester thing Ive heard about

http://www.aep.bigstep.com/gasp.html

Posted by: DuckRyder Feb 11 2004, 07:53 PM

These show up on E-Bay pretty regularly too.

Posted by: seanery Feb 11 2004, 08:35 PM

My guy in Marina Del Rey may have one. I've never seen it used and they are moving his shop in a couple months.
Precision Tech ask for Alex 310-822-4566. Tell him I (Sean Lee) told you that he may have one.

Posted by: ! Feb 11 2004, 08:39 PM

Thanks...

Posted by: ArtechnikA Feb 11 2004, 08:47 PM

i have a Gunson - it just does CO, but since the MFI is spec'd using %CO, it works great. the wideband stuff that measures A/F is good for what it does but there isn't as direct a correlation between A/F and CO as you might think. if you need HC and NOx, it won't help you, tho.

nowadays you pretty much need CO, HC, NOx and O2 - and i've heard of 5-gas analyzers and i can't think what the 5th gas would be... CO2 probably ...

Posted by: ! Feb 11 2004, 08:50 PM

I just started calling a few gas stations in my area to see if the obsolete Bear analyzers are still in the back room. My 3.6 was a little high at idle for HC....I'm gonna do a valve adjust, repalce caps and rotors/plugs and fiddle with the A/F to get it dialed in before I have to go to the referee.