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08-20-2010, 09:43 AM
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#1 |
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Registered User
Join Date: Aug 2010
Location: Goodlettsville, TN
Posts: 41
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1985 K20 Smog Pump Question
Just bought a truck and I live in a Tennessee County that requires tailpipe only emissions test. My truck is a 1985 K20 with the LT9(M 350) with HD 8600 GVWR emissions. This means no Cat but it looks like it has 2 smog or air pumps. There is no belt and only the upper pump has a pulley. Both spin freely. Truck has AC and is a manual transmission.
Question. Do both pumps need pulleys and if so does anyone have a diagram or picture of this setup. I was kind of supprised to find the lower pump. Looks like the rest of the emissions stuff is on the truck. Just have to hook up the hoses. Thanks.
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1985 K20 350M/SM465/NP208/GM10/GM14 |
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08-21-2010, 10:33 AM
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#2 |
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Registered User
Join Date: Aug 2010
Location: Goodlettsville, TN
Posts: 41
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Re: 1985 K20 Smog Pump Question
btt
__________________
1985 K20 350M/SM465/NP208/GM10/GM14 |
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