Ansel Marrow Posted February 17, 2007 Share Posted February 17, 2007 hey all, im diving straight into this, so basically i have a few questions... where is the oil pressure sender? i have a sbc 305. Anything special i need to know about before i hook up the starter motor? i have it off of the car at the moment. do i need to tighten the bolts down with a torque wrench? any notes at all will be appreciated. ill probabaly develop a few more questions during the weekend as I move along in progress. thanks in advance. without this place i wouldent even attempt a feat like this by myself. with the community helping out, im sure it wont be as difficult as it would be solo. justin Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 17, 2007 Author Share Posted February 17, 2007 Update: I found the oil pressure sending unit, its just one wire coming from around the distributor area? With a brass cylinder coming out of the intake manifold if Im not mistaken. Im buying a smaller starter, I cant remove the old one to wire it, and the space is too tight to allow for much room (hell I spent 2 hours once just trying to put it back on). Any reccomendations for mini-starters? I laid out all of the wires, but the weather was too cold for me to be able to focus clearly. Ill try to get some pics up soon. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 18, 2007 Share Posted February 18, 2007 The oil pressure unit on my SBC is at the back of the engine on top as you stated near the dizzy coming out of the intake. Sounds like you found it!!! Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 18, 2007 Author Share Posted February 18, 2007 EDIT: i can remove it, but its 25 lbs and too un-weildy. Id have to remove the header to work with it in any fashion. Im looking at this one. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=011&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=320083679600&rd=1,1 7.5lbs is WAAYY easier to handle than 25lbs. This one look any good? So mike, i dont add a ground wire? I assume I just hook it up since its a sending wire? Thanks. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 18, 2007 Share Posted February 18, 2007 STARTER: I always worry about using economy parts but I do use them none-the-less. A starter won't kill anyone or harm the engine if it fails. If you opt to use it let us know how it works. GROUND WIRE: I believe you are correct... just one wire to the oil pressure gauge. But I'll have to check later to confirm. Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 19, 2007 Author Share Posted February 19, 2007 Im going to tackle the lights today, to ground the wire I just run it anywhere on the cars body? Ill probabaly opt for inside the engine bay. Theres an alternator exiter wire, its ultra thick, and I dont know where it should go. Im going to document this with pictures tonight or tomorrow. Thanks for the help Mike, is there also one wire to the temperature sending unit? Going to re-route all of those wires. The temp sending wire is ultra thick though, I would like to know if I could cut it and re-sodder it together again. Pics tonight. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 19, 2007 Share Posted February 19, 2007 ANSEL... Sorry I forgot to check the oil pressure sending unit. Yes, it's a single wire. Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 21, 2007 Author Share Posted February 21, 2007 Cool, ill go ahead and wire it using a single wire. I bought a new starter, and I have some questions that arent so clear in my wiring kit wiring diagrams. Does a thick wire go fro mthe starter to here or what? I couldu se a simple drawing of the wiring from the batt, to starter, to ignition. I looked here and on google for about 2 hours, no clear drawings. [/url] I have sort of an idea of what happens here, any ideas on what to do here exactly with these will help. I am confident it is self explanatory. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 22, 2007 Share Posted February 22, 2007 WIRING DIAGRAM: (For starter, ignition, alternator) Found this from a google search "wiring diagrams chevy starter alternator ignition" (no quotes)... http://www.americanstreetmasters.com/Wiring_101_4.jpg TWO LOOSE WIRES: It looks like they're attached to the brake pedal assembly. If so, those wires activate your brake lights. The switch is normally open. When the brakes are pressed the switch closes the electrical loop and turns the brake lights on. Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 22, 2007 Author Share Posted February 22, 2007 Thanks Mike, you are a lifesaver. I was searching "chevy starter alternator wiring diagram". Guess it wasnt the right combo of words. Do I need the resistor, or is it built into my wiring harness or ignition switch? Im also confused about the ammeter. Are these optional parts? Thanks. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 22, 2007 Share Posted February 22, 2007 "...I was searching "chevy starter alternator wiring diagram". Guess it wasnt the right combo of words." You used the exact same search... just without "ignition". It's funny how one little change can make all the difference:mrgreen: I don't know whether you need the resistor or not but my guess is yes. Whether it's included in your wiring harness depends on the brand and model, I suppose. What harness did you buy? Did it come with instructions and/or a schematic? EDIT: On closer inspection, it looks very much like the resister is there to protect the ignition switch and its wiring. The voltage/current through the switch to the coil is decreased while cranking and after the engine is started full voltage/current to the coil is routed through the starter solenoid rather than the switch. So... YES, you need the resistor!! What value/size?? I don't know but this information shouldn't be difficult to find. Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 23, 2007 Author Share Posted February 23, 2007 This is the one I ordered... http://www.thehoffmangroup.com/Autoloc/detail.lasso?itemid=KICKZBB Ill do some independent research later today about the resistor. Ill probabaly have a few more questions up later today. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 23, 2007 Share Posted February 23, 2007 I looked at the on-line PDF document for this kit and I can't tell whether they recommend the resistor for a GM HEI ignition... assuming this is what you have. It's needed for points-type ingnitions but no values were mentioned. Did you try their call-in tech support? Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 23, 2007 Author Share Posted February 23, 2007 I looked at the on-line PDF document for this kit and I can't tell whether they recommend the resistor for a GM HEI ignition... assuming this is what you have. It's needed for points-type ingnitions but no values were mentioned. Did you try their call-in tech support? Ill go ahead and give them a call tonight after I get off of work. Through reading this thread realized I need a resistor. Ill keep the thread updated after I call. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 23, 2007 Share Posted February 23, 2007 Good luck. BTW, I'll be rewiring my 260 soon so this will be good info for me too. Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 24, 2007 Author Share Posted February 24, 2007 Im going to call tomorrow. Mike, check this link out, Im using it for reference. http://www.secondchancegarage.com/public/122.cfm Its got a neat little diagram too. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 24, 2007 Share Posted February 24, 2007 Informative link... thanks!! Quote Link to comment Share on other sites More sharing options...
Ansel Marrow Posted February 26, 2007 Author Share Posted February 26, 2007 Allright, finally got the info I needed. The resistor is only in use on a points system, not HEI. Therefore, for my 305 that came out of an 86 camaro, I wont be using it. Hope this helps. Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted February 26, 2007 Share Posted February 26, 2007 ^^^ Hmm... that's a bit confusing. I haven't seen any diagrams with the resistor on an HEI per se' but I've seen it shown on other electronic ignitions. Oh well... at least you're on the right track with yours. Good luck!! Quote Link to comment Share on other sites More sharing options...
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