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Messages - shameless

3
Electrical Chatter / Fire siren project, relay help needed.
I'm a vol. emt and fire fighter, I have two identical sirens that I've been running paralell to each other with a dual throw toggle switch, I need to redo these.  I dont have room for the dual throw switches, theyre too bulky.  so I thought I'd try relays.  what I had in mind was, in the first pic. if they make such a thing, using a dual throw relay.  i'm not sure if this will work.
relay design.jpg (56.4 KB)X
In the second set up, running two relays, one after the other, using the coil side of the relays in a bridged set up. power wire into relay 1 pos, thenfrom relay 1 neg. to relay 2 pos. then from relay 2 neg. back to the battery.

relay design 2.jpg (45.7 KB)    X 

in the third,  I'm illistrating the idea of using one sirent to trigger the relay to start the other siren. 

relay design4.jpg (31.6 KB)X



what do you guys think would be the easiest, what relays would you reccomend?
5
Electrical Tech / 86 bird w/289 wont hold charge????
I'm not sure what kind of alternator it is, it has 3 or 4 post I think, but I run the same alternator in my 79 ford and it only uses 3 or the post, and it works great in it.  Yes, it has an ext. regulator.  I'm not quite sure how to use a multi meter, but I'll have a friend come over and help me with it, thanks for the advice so far, I'm pretty knowlegeless when it comes to this stuff.
6
Electrical Tech / 86 bird w/289 wont hold charge????
ok, another question, I've had a few people tell me to "just go get a 2 wire chevy alt. and put on it, that should fix it"  has anyone done this. normaly I say its a sacrelige, to put a chevy part on a ford, but if it works then I'm willing to try it.  Any takers?
8
Electrical Tech / 86 bird w/289 wont hold charge????
my bird wont hold a charge, I've put a new alternator in it, with the battery charged up it'll run for a few minutes then die, and wont restart. I think the amp gage is stuck as well, does anyone have any idea what might be the problem???
10
Engine Tech / Finally got the transmission in, now for the engine...
Got to drive the bird around the parkinglot today, after a long long time.  I'm sure it needs some sort of fuel treatment, spark plugs, wires, rotor cap, etc. 

anything you guys think I should know about getting an older car thats been sitting a while running correctly?
15
Engine Tech / not sure where else to put it - M.P.G. question
my set up is an 85 T-bird turbocoupe, with a 65 289 HIPO/c4 auto implant, and as far as I know a factory rear end, I think its the 7.8 rear, I may be wrong.  it has headers with glass packs, not cat. converter. no a/c but I might put it back on. no power steering but would like to have that back. Other than all that, the car itself is stock.

I'm just curious what a reasonable fuel mileage expectation would be for this car with either a 2br. carb. or a 4 br. carb.

any ideas.