rdolce2 Posted July 5, 2007 Share Posted July 5, 2007 I purchased a chevy V-8 280z with the JTR conversion already completed at the end of last summer. This summer I decided to build a fresh 350 and install it mostly for the desire to learn how to do it, and partially because I severely overheated the last motor. Anyways, I've finished installing the new motor and while I was pulling the old one, I forgot to label one wire. Its the one that is spliced into the positive battery cable, and it looks much like a ground wire, but that didn't make sense to me. The only place I could think to put it is the large pole of the starter, but when I tried to fire it up last night, there were sparks down there so thats obviously in the wrong spot. The car was already wired when I got it, so I'm not very familiar with how the last owner decided to do it. Does anyone recall where this wire belongs, or have any advice? It is a Chevy Gen I carbed 350. Quote Link to comment Share on other sites More sharing options...
bschiltz Posted July 5, 2007 Share Posted July 5, 2007 Is it on the positive post of the battery? If so it goes on the out-put for the alternator. Quote Link to comment Share on other sites More sharing options...
rdolce2 Posted July 5, 2007 Author Share Posted July 5, 2007 Yes, it does come off of the cable that belongs on the positive post of the battery. The only problem i see with that is it doesn't look long enough to reach the alternator. Nonetheless, ill try it in the morning. thanks Quote Link to comment Share on other sites More sharing options...
Teekass Posted July 5, 2007 Share Posted July 5, 2007 Do you specifically remember it being hooked up before? The reason I ask is it may have been the power supply for the original EFI. Quote Link to comment Share on other sites More sharing options...
rdolce2 Posted July 7, 2007 Author Share Posted July 7, 2007 So I resolved the starter issues, but ran into a few new and very frightening problems. First off, in order to get the motor running, I have to crank the starter for a few seconds and then pump the throttle before I let go of the starter in order to keep it running. If I dont pump the throttle, the car will not stay running once I let go of the starter. Im assuming this is a wiring issue and since I didnt wire the car, im considering re-wiring it with a 12 circuit EZ wiring harness that I have read about here. The second problem I have is an unusual noise. I would classify it as a "friction" noise, sort of like gears turning. When the car is running and the trans is in neutral, there is this friction noise. I bought the long block remanufactured so I havent done any work on the internal moving parts. The only moving parts I can think of that I would be responsible for are the oil pump, distributor, and accessories. Im suspicious that the noise problem lies in between the motor and the trans, maybe in the clutch assembly?? I thought maybe this noise had to do with low trans fluid. It is a borg-warner T5, I initially got 4 quarts in, and then after I noticed the noise, I added fluid and was able to get about a half a quart more in. A third problem I have I am not sure is actually a problem. After putting the new motor and old trans back into the car, I bled the clutch cylinder because I had to disconnect the line to get the tranny out. Once the motor is running, the trans will go into all the gears fine except once I get anywhere near reverse, it makes a horrible grinding noise. Also the clutch pedal seems to engage very low in the throw of the pedal. The car lurches forward almost immediately. I do not know if this is a result of clutch cylinder that is bled very poorly/well. I'm kinda frustrated/lost. Does anyone have any insight as to the cause of any of these "problems"? Quote Link to comment Share on other sites More sharing options...
280zwitha383 Posted July 7, 2007 Share Posted July 7, 2007 1. Check the float levels. This is carb'd right? 2. Maybe flywheel to starter clearance? 3. Do you have a clutch adjustment? You could try bleeding more. Are you bleeding it right? Good luck Quote Link to comment Share on other sites More sharing options...
Teekass Posted July 7, 2007 Share Posted July 7, 2007 Is the starter staying engaged after you release the start switch? Start the engine and let it run for a couple of seconds after you release the starter switch (pump the throttle or whatever it takes, just as long as the engine runs for a couple of seconds after you release the starter). Turn the engine off, and climb under the car and make sure the starter gear is NOT engaged with the flywheel. If it is, you need to shim your starter to get the correct clearance between the starter gear and the flywheel. Quote Link to comment Share on other sites More sharing options...
lbhsbZ Posted July 8, 2007 Share Posted July 8, 2007 As for the grinding noise, go pickup an automotive stethescope at autozone. It will help you pin down where the noise is coming from. I had a fresh engine make a bunch of racket from the timing chain area...turned out the new timing chain was 1/16" too thick and hit the timing cover. Quote Link to comment Share on other sites More sharing options...
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