Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACHING

[Ryanlewis2010]

Hi guys i need some help asap so i can get this picked up b4 the rain can any one tell me which sockets i need to jump to run this engine thru the wiring harness i saw one guy do it and he showed me how but cant find his vid. its a 72 3.0 merc 140. I wanna do it this way because i just tried running it strait to the batter without realizing the coil needs some resistance and blew the coil up thanks

 

[Don S]

Re: Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACH

For ignition, just run a jumper wire from the battery positive terminal to the + terminal of the coil. To spin the starter, apply power to the small terminal on the starter closest to the block.

 

[Ryanlewis2010]

Re: Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACH

i did that and it blew the coil to peices but i just figured out u jump 5 an 6 for coil power and jump the starter with as screwdriver AND ITS ALIVE

 

[cr2k]

Re: Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACH

Then your coil was bad anyway! Never even heard of that before. To pieces, really?

 

[Ryanlewis2010]

Re: Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACH

Ya top blewed off like saint hellen but anyways it was still under warranty lol so its alll good now i fired it up last night after doing an oil change and finnished adjusting it as well as it can be with out being in the water i think i will need to advance timming a lill more but it sounds good... Just one problem which i think i fixed will find out next time i run her on sunday but my elbow is letting water leak over the gasket at the manifold and back into my engine but i think i fixed it so far so good

 

[littlebookworm]

Re: Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACH

Ryan: You need a manual for your engine and drive. There are numerous sites, including 4shared.com, where you can get one. Playing around with the cooling and the ignition systems when you really don't know what you're doing is going to be an expensive learning curve. By the way, what happened to the ignition switch and key that you need to bypass them? If your wiring is screwed up, you're going to need to get things connected correctly. Hy

 

[Ryanlewis2010]

Re: Jumping the pins to fire engine on standalone thru harness QUICK RAIN IS APPROACH

I have the manual and i do know relatively a lot about what im doing. What the goal was on this day was trying to start my motor on the engine stand ( which i had just rebuilt by my self) so that it could be adjusted on timing and make sure everything was done right not in the process i figured out what was wrong and like cr2k said is that was just a crappy coil i got, but i also figured out when i grinded around the exhaust elbow to remove the left over gasket and rust i didn't smooth it and it leaked over into the exhaust so i have since then grinded the area FLAT and used a sealant around the edges of the exhaust and water ports (i don't wanna take the elbow off again anyways) But thanks for the help im considering this thread closed thanks guys