Volvo RWD 200 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 7/2004 200 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

still trying to swap out 240 alternator for 740 alternator and need help 200

posted by  mp3god on  Fri Oct 22 08:32 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Jul 2 18:59 CST 2009
[RELATED]

I'm trying to swap out a 240 alternator for 740 alternator on my '92 245 and need help with the wiring. its a little confusing cause the backs of the 2 alts are quite different. i need some good instructions on hoe to wire up the 740 alt to my 240.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    still trying to swap out 240 alternator for 740 alternator and need help 200

    posted by  B.C. on  Fri Oct 22 12:45 CST 2004
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Wed Mar 28 22:28 CST 2012
    [RELATED]

    Never seen a 740 alternator, so this is a SWAG.

    The 240 alternator, newer ones not having the external regulator, have but three wires on the back side. The 740 likely has the same.

    Large wire, red on 240s, from a stud/nut/washer on the alternator to the starter. Carries the charging current.

    Small wire, red on 240s, connects on the alternator back to a spade lug which is mounted in an insulated place.

    Small wire, black on 240s. Connects from under one of the bolts holding the alternator bracket onto the block to one of the alternator frame bolts. Sometimes a spade lug. This wire grounds the alternator to the block, necessary since the alternator rides in its bracket on rubber bushings.

    Hope this helps.

    Bob

    :>)








    •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

      still trying to swap out 240 alternator for 740 alternator and need help 200

      posted by  mp3god on  Sat Oct 23 09:52 CST 2004
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Thu Jul 2 18:59 CST 2009
      [RELATED]

      HI! Thanks for the help!

      Im pretty clear on the 2 red wires i think, it looks like i will need to splice the spade adapter onto the small wire as my stock 240 alt only had posts for the 2 reds. im still a little foggy about the black though. on the new 740 alt there is a blue wire still attached to unit, is where i attach the black?

      still in need of help! thanks







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.