blackmarkit Posted January 17, 2015 Report Share Posted January 17, 2015 I'm trying to get my 1979 620 kc smogged and the egr was bad. It doesn't have a readable number on it and I need the factory part number to install the correct origice. The number I think would be stamped in the top of the egr valve or written on the top of a aftermarket valve. Quote Link to comment
datzenmike Posted January 17, 2015 Report Share Posted January 17, 2015 Just remove and wire brush clean. Use WD-40 to loosen the valve. Suck on hose inlet and it should open and close.# 14710-H7770 '78-'79 California/Fed man/auto EGR valve. Quote Link to comment
blackmarkit Posted January 20, 2015 Author Report Share Posted January 20, 2015 I already tested the egr and the diaphragm was bad. I bought a replacement but the replacement used different sized orifices. You are suppost to installed the correct orifice based on the original part number. I was able to call Nissan and they looked it up. Part number #14710-H7760 1979 Datsun 620 manual trans, California emissions. 1 Quote Link to comment
datzenmike Posted January 20, 2015 Report Share Posted January 20, 2015 Part number #14710-H7760 is for... '77 -'79 federal and Canada manual trans. '78 camper Have them look up 14710-H7760 14710-H7770 and verify it's the proper one. 1 Quote Link to comment
blackmarkit Posted January 22, 2015 Author Report Share Posted January 22, 2015 Hmmm. That sucks that's the part number they gave me. Do you know what the California part number would be? 1 Quote Link to comment
datzenmike Posted January 22, 2015 Report Share Posted January 22, 2015 All those EGRs fit the same engine and will work. Sorry I put the incorrect number for the California EGR. I corrected it and the new one is 14710-H7770 for manual. automatic and camper. They may simply have read ot typed the wrong number as I did. Have them look up 14710-H7770 1 Quote Link to comment
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