fiveleaf Posted April 18, 2013 Share #1 Posted April 18, 2013 I just picked up my 72' 240z from the shop. I'm having issues with a few things before I'm able to even think about driving anywhere: (1) Alternator does not charge the battery or provide power to electrical system when car is running. Alternator was taken to machine shop prior to this, where it was re-wound and confirmed working. He also sold me a voltage regulator (modern solid-state), which is currently installed. I believe that I installed it wrong. Some pictures are below. (2) The Brake Booster Hose and Check Valve were removed by the shop, and it's been a long time since I've seen the car (almost 2yrs). The Check Valve seems to be an easy find, but does anyone know where to find booster hose? Which ones would be compatible with a 72' 240z? (3) The dash isn't bolted in, and I don't have the necessary hardware fasteners (screws/nuts/bolts) to put it in. Are there common sizes for these avail. somewhere? I suppose they should be common metric sizes, and avail. in stainless steel in most hardware stores? Here's some pictures of the current voltage regulator as it's attached to the alternator right now: Link to comment https://www.classiczcars.com/topic/46303-issues-modern-voltage-regulator-how-to-wire-brakes-vac-assist-buying-nutbolts/ Share on other sites More sharing options...
SteveJ Posted April 18, 2013 Share #2 Posted April 18, 2013 If you have the PROPER voltage regulator, it should just plug into the wiring harness. Is your engine wiring harness intact, or is it hacked? Link to comment https://www.classiczcars.com/topic/46303-issues-modern-voltage-regulator-how-to-wire-brakes-vac-assist-buying-nutbolts/#findComment-420898 Share on other sites More sharing options...
tlorber Posted April 18, 2013 Share #3 Posted April 18, 2013 Do yourself a favor and get an interally regulated alternator (out of an early 80's ZX) along with the required adaptor from Dave Irwin (Z'sondabrain on this site). I think I paid $60.00 for the alternator with a lifetime warranty and $15-$20 for the adaptor. It is all plug and play, and reversible. The solid state is much more stable and consistant that mechanical points constantly flicking on and off. Link to comment https://www.classiczcars.com/topic/46303-issues-modern-voltage-regulator-how-to-wire-brakes-vac-assist-buying-nutbolts/#findComment-420933 Share on other sites More sharing options...
Zed Head Posted April 18, 2013 Share #4 Posted April 18, 2013 In theory, you should be able to make a VR from another car work on the Z. The one in your picture looks a little like the 1974 VR I replaced after it boiled my battery, back in 1980. It was "solid state" but it was one of the first solid state VR's Mopar (not Nissan) used. Not modern today, but modern then (of course).Looking at your picture, it looks like you might have the charging wire connected to ground. If so, you might have melted a fusible link. Take a better picture from the back of the battery and describe the color of the wires that connect to each are. Your pictures are hard to see. Link to comment https://www.classiczcars.com/topic/46303-issues-modern-voltage-regulator-how-to-wire-brakes-vac-assist-buying-nutbolts/#findComment-420938 Share on other sites More sharing options...
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