05-13-2009, 08:18 PM
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Join Date: Aug 2003 Location: LeRoy, NY
Posts: 5,570
Car: 1987 Firebird... in pieces. Engine: 3.1L V6 LH0 soon to be 3100 Transmission: Borg-Warner T-5 Axle/Gears: 2HL 3.42 open | Re: help with timing/ firing order for 3.1 v6
First, I'd say you need a new mechanic, as he obviously doesn't know how to do his job (by looking something so simple up in a book or computer).
Second, the base timing setting is set with the connector that is hanging out of the wire harness above the blower fan (tan/black wire) disconnected, and is set to 10* BTDC.
Third, the firing order is 1-2-3-4-5-6, with #1 being pass side front cylinder, unless you're overseas, where it's the driver's side front cylinder. Either way, the #1 cylinder is still the one closest to the front of the engine.
__________________ Dan V.
Project Raven is on hold... She's a body shell with a rather large collection of parts. 1987 Pontiac Firebird, T-top, 1991 VIN T engine, getting MegaSquirted. 85 T-5 5-Speed manual trans. Hybrid 3100 V6 swap nearly complete, too much body work to do first  . Restomod in progress. So many parts to replace, so little money . |
 
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