85 na wont crank over. Where are all the grounds?

85mr2illinois · 09-23-2008, 11:23 PM

Hello, i have recently bought another 85 na. It is in near mint condition with 120k on it. It has been sitting in a garage for the past 10 years and i finally talked the owner into selling it to me. The original motor had thrown a rod through the block, but he gave me a complete motor from a running car to go with it that he had pulled out a couple of years ago. So out with the old, in with the new. I have it all in there, not 100% connected up yet, but i was wanting to make sure it is going to crank and fire before i get it totally in there. I have pretty much all of the wiring harness hooked up, except for maybe a couple of things that i am unsure of at the moment because not everything is where its supposed to be just yet. There is a wire loom coming from the engine bay fuse box and it goes into 2 big grey connectors. There is also another ground wire coming from that as well, which i have grounded to the chassis. I have the ground on the passenger side of the motor, that is bundled with the connector for the coil, hooked up. Are there any more grounds that i am missing? I replaced the starter because i could not get it to crank, but i can hear the starter relay clicking. Any idea's on what would cause this or possibly more grounds that need connected? Thanks alot! -Justin

86tymr2 · 10-01-2008, 06:19 PM

im having the same problem, let me know if you figure it out i will do the same

85mr2illinois · 10-01-2008, 11:09 PM

Hey, it turns out that the part that connects the negative battery terminal and another ground wire, i didn't have it bolted to the chassis. I also bought 4 gauge ground wire and bolted one end to the motor and the other to the strut tower. It cranked right over and fired up.

86tymr2 · 10-09-2008, 07:26 PM

i took my starter out of mine and put a new + wire from the starter to the battery directly and put a new ground wire on the engine on the cam side and its running now but isnt running perfect and i may have a blown head gasket...im not sure though the oil looks good the rad fluid was kinda brown so i flushed that and am in the process of bleeding it...but it does drive great not idle so great

09-23-2008, 11:23 PM	#1 (permalink)
85mr2illinois 91t and staying that way Join Date: Feb 2007 Location: Alton Illinois Posts: 84 Thanks: 2 Thanked 0 Times in 0 Posts iTrader Rating: (2/100% )	85 na wont crank over. Where are all the grounds? Hello, i have recently bought another 85 na. It is in near mint condition with 120k on it. It has been sitting in a garage for the past 10 years and i finally talked the owner into selling it to me. The original motor had thrown a rod through the block, but he gave me a complete motor from a running car to go with it that he had pulled out a couple of years ago. So out with the old, in with the new. I have it all in there, not 100% connected up yet, but i was wanting to make sure it is going to crank and fire before i get it totally in there. I have pretty much all of the wiring harness hooked up, except for maybe a couple of things that i am unsure of at the moment because not everything is where its supposed to be just yet. There is a wire loom coming from the engine bay fuse box and it goes into 2 big grey connectors. There is also another ground wire coming from that as well, which i have grounded to the chassis. I have the ground on the passenger side of the motor, that is bundled with the connector for the coil, hooked up. Are there any more grounds that i am missing? I replaced the starter because i could not get it to crank, but i can hear the starter relay clicking. Any idea's on what would cause this or possibly more grounds that need connected? Thanks alot! -Justin

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10-01-2008, 06:19 PM	#2 (permalink)
86tymr2 Some Skills Join Date: Jun 2008 Location: port angeles, wa Posts: 82 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	im having the same problem, let me know if you figure it out i will do the same

10-01-2008, 11:09 PM	#3 (permalink)
85mr2illinois 91t and staying that way Join Date: Feb 2007 Location: Alton Illinois Posts: 84 Thanks: 2 Thanked 0 Times in 0 Posts iTrader Rating: (2/100% )	Hey, it turns out that the part that connects the negative battery terminal and another ground wire, i didn't have it bolted to the chassis. I also bought 4 gauge ground wire and bolted one end to the motor and the other to the strut tower. It cranked right over and fired up.

10-09-2008, 07:26 PM	#4 (permalink)
86tymr2 Some Skills Join Date: Jun 2008 Location: port angeles, wa Posts: 82 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	i took my starter out of mine and put a new + wire from the starter to the battery directly and put a new ground wire on the engine on the cam side and its running now but isnt running perfect and i may have a blown head gasket...im not sure though the oil looks good the rad fluid was kinda brown so i flushed that and am in the process of bleeding it...but it does drive great not idle so great