HELP. trouble starting 72 1.7L |
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HELP. trouble starting 72 1.7L |
forzamotorsport9 |
Nov 17 2009, 10:30 PM
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#21
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Newbie Group: Members Posts: 44 Joined: 2-November 09 From: Bettendorf Iowa Member No.: 11,001 Region Association: Upper MidWest |
ok so i installed my tangerine racing tunnel and engine compartment lines no problem there, installed a 34R Optima Red-Top, a little big but oh well, went to turn it over, wouldnt turn over. i looked and coming off of the coil is a green wire attached to nothing, i think its a ground. where does this thing go.
any ideas on getting it started and where that ground needs to go. i would figure the engine case but i tried holding it there and pulled out a spark plug and hooked back to the wire to see if it would start and got nothing, i then grounded it to a bolt connecting the tin cover (i think?) to the head and the continuity tester said the circuit was ok so im guessing something has to be wrong with the ignition system, either the coil or distributor, which i THINK is newer and uses the magnetic thing to adjust dwell, which i loosly understand the concept of. also, could it just be the spark plug? it didnt look fouled or anything but i couldnt see a visable spark when having someone try to start the car and it wouldnt gap to the engine case either, so idk whats up im only 18 and a senior in high school so a lot of this is new to me, ive read about it in magazines but never this deep, nor got my hands dirty (i have now! (IMG:style_emoticons/default/beerchug.gif) ) i just wanna see the damn thing run, for only having 47,259 miles on the clock it shouldnt be too big of a deal to fix. i included a picture of what it looked like with just a basic clean too, no detailing or anything, not bad for being 38 (i think?) years old!) i trust the ppl on this site too, so if anybody want my phone number just shoot me a pm and id be more than happy to discuss it on the phone. THANKS IN ADVANCE. note: the green wire in the one pic is the one i grounded. it was just sticking up like in the picture before i grounded it |
Spoke |
Dec 7 2009, 07:48 PM
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#22
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Jerry Group: Members Posts: 7,052 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
Where did you measure power on the relay board?
There are 2 fuses, perhaps, a 25A and 8A. The 25A is towards the rear of the car. With the ignition on, you should have 12V on both sides of the fuse. Check that you have 12V on the 25A fuse and let us know what you measure. The 25A fuse powers the fuel pump through the relay. This is only part of the circuit to get the fuel pump running. Let's go one step at a time. Power first, then control, then relay, then fuel pump. |
forzamotorsport9 |
Dec 7 2009, 10:13 PM
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#23
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Newbie Group: Members Posts: 44 Joined: 2-November 09 From: Bettendorf Iowa Member No.: 11,001 Region Association: Upper MidWest |
Where did you measure power on the relay board? There are 2 fuses, perhaps, a 25A and 8A. The 25A is towards the rear of the car. With the ignition on, you should have 12V on both sides of the fuse. Check that you have 12V on the 25A fuse and let us know what you measure. The 25A fuse powers the fuel pump through the relay. This is only part of the circuit to get the fuel pump running. Let's go one step at a time. Power first, then control, then relay, then fuel pump. i have 12V at 25A and 8 at the other i think mabe 12 i dont remember |
r_towle |
Dec 7 2009, 10:18 PM
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#24
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Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Where did you measure power on the relay board? There are 2 fuses, perhaps, a 25A and 8A. The 25A is towards the rear of the car. With the ignition on, you should have 12V on both sides of the fuse. Check that you have 12V on the 25A fuse and let us know what you measure. The 25A fuse powers the fuel pump through the relay. This is only part of the circuit to get the fuel pump running. Let's go one step at a time. Power first, then control, then relay, then fuel pump. i have 12V at both fuses. How about at the pump. It should only have power for about 1.5 seconds when you turn the key on. It then again gets power once the motor starts. Rich |
forzamotorsport9 |
Dec 7 2009, 10:22 PM
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#25
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Newbie Group: Members Posts: 44 Joined: 2-November 09 From: Bettendorf Iowa Member No.: 11,001 Region Association: Upper MidWest |
Where did you measure power on the relay board? There are 2 fuses, perhaps, a 25A and 8A. The 25A is towards the rear of the car. With the ignition on, you should have 12V on both sides of the fuse. Check that you have 12V on the 25A fuse and let us know what you measure. The 25A fuse powers the fuel pump through the relay. This is only part of the circuit to get the fuel pump running. Let's go one step at a time. Power first, then control, then relay, then fuel pump. i have 12V at both fuses. How about at the pump. It should only have power for about 1.5 seconds when you turn the key on. It then again gets power once the motor starts. Rich no power there. i have another fuel pump that silverteener (scott) let me borrow and im getting nothing...it doesnt click or anything and i tested the power too and got nothing. i stick positive meter into the connector that gets plugged into the fuel pump and the other one to the transmission case as a ground? |
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