LT1 removal question
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 41
From: Auburn MA
LT1 removal question
I have a 94 coupe with the LT1/6 speed that has a spun bearing. I have the replacement engine on the stand and I am looking to remove the engine out of the car. Now as far as the wiring harness goes can I unhook the engine harness from the car and remove the engine harness with the engine or is it tied into the car in way too many locations. Or is the better approach to unhook all the sensors and pull the harness off the engine and set it aside.
Burning Brakes
Joined: Apr 2014
Posts: 829
Likes: 192
I would lay a large soft blanket like a moving blanket over the windshield area. Then as you disconnect harness attachments from the engine you’ll eventually be able to lay that portion back over the windshield. You may need to use a string line or whatnot and hold it back from the engine bay over the windshield. Then when the new engine is in place you can flop the harness back down. I see no need to completely remove it.
Last edited by JD1964; Oct 28, 2021 at 06:09 PM.
Drifting
Joined: Jan 2021
Posts: 1,312
Likes: 383
From: Northern California
There is actually a good reason Not to remove it. Those connectors at the firewall, the large block connectors which have many pins in them, are likely to be brittle from years of heat cycles and may well crack to sh*t when you remove them. Getting them to connect back is likely to cause you at least one issue electrically, which as you know can be hell to isolate the cause exactly. I agree - leave the harness attached to the car and lay it back on the windshield or around the engine bay.
No matter what you're going to have to remove each sensor connector from the engine side to move onto the new engine. May as well reduce the possibility of chances to just that end of the wiring harness. It's likely some of those Weatherpak connectors are going to break also, and they'll need repair / replacement.
Great avatar by the way....
No matter what you're going to have to remove each sensor connector from the engine side to move onto the new engine. May as well reduce the possibility of chances to just that end of the wiring harness. It's likely some of those Weatherpak connectors are going to break also, and they'll need repair / replacement.
Great avatar by the way....
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 41
From: Auburn MA
Thanks for all the replies I guess this cements the idea that I have to un hook all the connectors and set the harness aside... does anyone know where I can find a wiring diagram so I know where to look.
Burning Brakes
Joined: Apr 2014
Posts: 829
Likes: 192
I recommend you get blue painters tape and a sharpie pen. When you are taking things apart like unhooking wiring harness things, wrap a piece of tape around and label where it goes. Also, get ziploc sandwich bags. You can put nuts and bolts in them and also label them with the sharpie.. Some fasteners can also be screwed back into the component they belong with until you are ready to put them back on. A little time organizing can save alot of time later. Taking pictures of various things before disassembling can help when reinstalling too.
Racer
Joined: Mar 2018
Posts: 411
Likes: 97
From: Las Vegas
There is actually a good reason Not to remove it. Those connectors at the firewall, the large block connectors which have many pins in them, are likely to be brittle from years of heat cycles and may well crack to sh*t when you remove them. Getting them to connect back is likely to cause you at least one issue electrically, which as you know can be hell to isolate the cause exactly. I agree - leave the harness attached to the car and lay it back on the windshield or around the engine bay.
No matter what you're going to have to remove each sensor connector from the engine side to move onto the new engine. May as well reduce the possibility of chances to just that end of the wiring harness. It's likely some of those Weatherpak connectors are going to break also, and they'll need repair / replacement.
Great avatar by the way....
No matter what you're going to have to remove each sensor connector from the engine side to move onto the new engine. May as well reduce the possibility of chances to just that end of the wiring harness. It's likely some of those Weatherpak connectors are going to break also, and they'll need repair / replacement.
Great avatar by the way....
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 41
From: Auburn MA
I recommend you get blue painters tape and a sharpie pen. When you are taking things apart like unhooking wiring harness things, wrap a piece of tape around and label where it goes. Also, get ziploc sandwich bags. You can put nuts and bolts in them and also label them with the sharpie.. Some fasteners can also be screwed back into the component they belong with until you are ready to put them back on. A little time organizing can save alot of time later. Taking pictures of various things before disassembling can help when reinstalling too.
