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Discussion Starter · #1 ·
Hi guys,

I have a few questions, I'm just going to lump them into one post here. So I just installed a new sbc 350 into my 85 GMC truck, and I am able to get the engine to turn on and run, but the alternator isn't charging the battery and it dies after some time. The alternator is brand new, and when I check the terminals on the alternator they read out around 14V, so I think it must be a problem with the wiring. Attaching an image below, but could someone tell me if this is the fusible link for the alternator, and if this needs to be replaced?

Also, I am noticing that the engine seems to almost die when I press the gas. Anyone know what would cause this? There is also an issue with the transmission, nothing seems to happen when I shift gears(I am pretty sure something on the transmission works because it does go into park when I set to park, I can clearly see the shift linkage move when shifting). At one point I put the truck into drive and then pressed hard on the gas, and it sounded like the engine was racing on the highway going very fast. Letting off the gas and applying the brakes didn't seem to do anything, so I shifted the truck into park and tried to turn it off by taking the key out. The truck started violently popping and backfiring out of the exhaust and even off kept trying to run (I'm guessing it was still getting oxygen). It continued like this for a few minutes before finally sputtering to a stop and then spitting out gas out the top of the carb. Is this an engine issue or a transmission issue?? Thanks for the help!!

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Discussion Starter · #7 ·
Hey guys, so I think I found the problem - the alternator cables to the starter are pretty fried. I've been looking everywhere online but cant seem to find this - it's 3 cables coming together with two fusible links I think? the black cylindrical things (I think are the fusible links) say 16 and 14, are these gauges for the wire? Does anyone know if there's a part number I can buy that will replace this, or should I just solder three fusible links all together?
 

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