ka620' Posted July 14, 2017 Author Report Share Posted July 14, 2017 Crash - im going to work on the truck tomorrow morning ill see wich ones are doing what. If I remember right its the blue white wire closest to the front of the truck that is fried. I dont think its repairable because theres nothing to solder too. So ill probably end up getting a generic one. mike- that makes total sense. Do you know what gauge the fusible link is supposed to be ? Quote Link to comment
datzenmike Posted July 14, 2017 Report Share Posted July 14, 2017 Says L16 so I assume a '73... so 20 amp fusible link. This will handle 200 amps for 5 seconds before melting. Later 620s like the '78 are rated at 40 amps. Quote Link to comment
ka620' Posted July 14, 2017 Author Report Share Posted July 14, 2017 So i can just use an inline fuse holder and use a 20 amp fuse ? Quote Link to comment
datzenmike Posted July 14, 2017 Report Share Posted July 14, 2017 I suppose so. The fusible link can sustain a dead short for a few seconds without blowing if it's removed. A regular fuse will pop right away.I would get several replacements so you don't get stranded. You can buy fusible link wire. Quote Link to comment
ka620' Posted July 14, 2017 Author Report Share Posted July 14, 2017 So a wire is the way to go ? What gauge should i be looking for ? Quote Link to comment
datzenmike Posted July 14, 2017 Report Share Posted July 14, 2017 Well larger wire is better so the fuse or fusible ling is the weakest link and blows first. You want 20 amp rating. Usually they are color coded and I don't know what that is for 20amp. For a regular blade fuse it's clear. Quote Link to comment
ka620' Posted July 15, 2017 Author Report Share Posted July 15, 2017 Ok got it , thank you mike Quote Link to comment
superbee620 Posted July 16, 2017 Report Share Posted July 16, 2017 I wanted to chime In about going with a internal regulated alternator. I saw where to connect yellow wire with white wire then white with red stripe to white with yellow stripe . I don't have a white with yellow stripe wire. But I've got a white with blue stripe or a white with black stripe.1973 620 Quote Link to comment
Crashtd420 Posted July 17, 2017 Report Share Posted July 17, 2017 Superbee620 Where did you get the info about a white with yellow strip wire? 2nd page of this post has a diagram that should work.... white with red connects to a white with black stripe not a yellow stripe... Quote Link to comment
datzenmike Posted July 17, 2017 Report Share Posted July 17, 2017 White may be discolored. I've seen wires that could be called light brown that were actually supposed to be white. Quote Link to comment
superbee620 Posted July 17, 2017 Report Share Posted July 17, 2017 Thank you Crashtd420 that helps .I actually got the white with yellow stripe info from this post.probaly a typo cause the guy who wrote it know his datsuns and any advice he has given me has been accurate. But thanks white and red to white and black Quote Link to comment
Crashtd420 Posted July 17, 2017 Report Share Posted July 17, 2017 Ya I would agree with typo.... Wasn't me... Quote Link to comment
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