72240z Posted May 14, 2009 Report Share Posted May 14, 2009 (edited) Anyone familiar with this style of alt? I was pretty high at the time, it blew my mind lol. I would say maybe I'm just not old enough but I work on 70's all the time this is 80s. I'm diesel ignorant though maybe it's a diesel thing, pretty sure I've seen them on other diesels. Still can't fathom why though besides I guess longevity? You would still need to change the brushes and recoil it though after some years. Look at all those banjos and how they tapped the block for the oil feed with a banjo coupling in between? lol Check that cluster fuck of a banjo up top which I think was coolant but looks vac? Or both maybe. Someone school me please. Edited May 14, 2009 by 72240z Quote Link to comment
yello620 Posted May 14, 2009 Report Share Posted May 14, 2009 Little bit of a wild guess here, but is it maybe a diesel motor with a vaccum pump on the back of the alternator that has oil lines for its bearings? Dodge/cummins has vaccum pump mounted to the back of the power steering pumps for many years and ford has a small vaccum pump belt driven too. The vaccum is needed for the power brakes and sometimes HVAC controls. Quote Link to comment
72240z Posted May 14, 2009 Author Report Share Posted May 14, 2009 You know now that you say that the vac makes perfect sense. Still the oil seems over complicated no? Either way that shed some light for sure, thank you. Quote Link to comment
Farmer Joe Posted May 19, 2009 Report Share Posted May 19, 2009 thats an oil cooled vacuum pump for the brakes. my buddys diesel luv had the same type of alternator. Quote Link to comment
72240z Posted May 20, 2009 Author Report Share Posted May 20, 2009 Ya I did me some learnin lol. Thanks guys. Quote Link to comment
datzenmike Posted May 20, 2009 Report Share Posted May 20, 2009 Looks like the pressurized oil comes out of the head and down to the pump and drains back into the pan... somewhat like a turbo. So, how does the oil get to that side of the head? Down from a cam tower?? Quote Link to comment
72240z Posted May 20, 2009 Author Report Share Posted May 20, 2009 Thats a good question. I loaded the block for scrap today and the head is in my basement. I'll check before. Why didn't they just use an accessory spot to drive a vac pump like so many car manufacturers do with air pumps for smog? It just seems like trouble to combine it with the alt so that if there is a problem with one you have to remove twice as much. On a side note the head is cast lol, L series cast iron head. Pretty cool but that thing has to weigh over 100lbs. Quote Link to comment
pieman Posted June 24, 2009 Report Share Posted June 24, 2009 I have never seen that hanginging off a nissan/ dato. Only places I seen it hanging off toyota motors . I just figured good onya toyo your right up there with mitsibushi cars, if you can figure a way to overcomplicate things you'll do it. couldn't see the point of all the engineering involved for what? so I didn't take an interest in it. Quote Link to comment
datzenmike Posted June 24, 2009 Report Share Posted June 24, 2009 thats an oil cooled vacuum pump for the brakes. my buddys diesel luv had the same type of alternator. Sometimes it's easier to use something already out there. Maybe Nissan bought them from the same manufacturer rather than re-inventing something else. I think the first year GTO used a Ford tranny Quote Link to comment
420n620 Posted June 24, 2009 Report Share Posted June 24, 2009 (edited) the 65 GTO was the first year to used the Dearborn top load 3 speed trans, Pontiac quit putting then in the GTO's/Lemans sometime in the early 70's and went to the muncie trans. Edited June 24, 2009 by 420n620 updated info Quote Link to comment
datzenmike Posted June 24, 2009 Report Share Posted June 24, 2009 (edited) Yeah, something to do with GM not having a synchro first gear 3 spd. Easier to use the already available Ford unit while re-tooling. Edited June 24, 2009 by datzenmike Quote Link to comment
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