Hello anyone with B21A Engine, past or present:

I am seeking a complete Wiring Diagram for the B21A Engine compartment, from the Gray firewall mounted multi-pin plug all the way forward to the headlights.

Why? Insulation has fallen off some wires. I want to make a completely new Wiring Harness. By the way, this IS the only car of 19 that I have owned in my 33 driving years that this has happened to.

Lastly, I am still seeking a good, functioning, second-hand EGR Valve, Volvo Part Number 1266363 A. Pierburg KG Neuss Part Number 7 20404 50 0 and a clean EGR Pipe would be nice, too.

Thanks, if anyone can help out.

email: RLC747CAPT(remove parentheses and everything in between)@YAHOO.COM and make everything lowercase text.

I just redid the wiring harness on my '84 240 B21A last summer. Not a big deal at all. Carefully trace each wire for continuity from the end back to the grey canon plug at the fire wall to make sure you have the right wire. Then draw up a color coded wiring diagram. Reroute the wires for the, alternator, and oil press. sender from under the crank pulley to around the right side fender well, then down to the engine. You can probably leave the big red wire that goes from the alternator to the starter, it's generally ok. Use good quality #14 or #12 wire in various colors. (Got mine at a marine supply store, it seems to have a higher temp. rating) Cut out the canon plug and use spade connectors,solder, and shrink wrap each connection. Put a dab of dielectric grease on each joint. The whole job cost me about $30. Go for it!

Hello,

If you're in the Toronto area, there's a decent 244 with a B21A up at Cookstown Wreckers that was whacked in the rear. The car looks like it was well maintained and the engine bay is soaked in rustproofing.

Just in passing, everything up front looked good to me...
--
Happy Bricking!!! - Richard - '87 245 DL , '82 242 GLT - Volvo's are alive and well in Brampton!!!

You can choose to make your own harness and then re route wiring along the firewall rather than under the block as suggested. Do one wire at a time.
Also a harness from a fuel injected model may work(B21F or B23E should work best). You will not use all the wiring but the wires you require will be there and lead to the same locations. Check in a wreck yard for a car that has had its harness replaced. Replacements had the improved insulation. You can distinguish them by how faded the old gray connector is attached to the replaced one. I scored a turbo harness this way. The Canadian cold and low mileage has spared my B21A harness so far.

Erich
Ottawa Canada

For wiring suggestion see
http://www.brickboard.com/RWD/?id=678119

The plugs supposedly are available from the dealer for about 50 cents each.

--
1980 245 Canadian B21A with SU carb and M46 trans