Easiest way to prime...

[BFlat]

... an engine that’s been sitting for 4 months? It’s not a fresh build. I’d like to not have to disconnect a lot of stuff.
Will it work to either turn the engine over with the accelerator floored, or possibly with the computer disconnected?
Thanks

 

['87 Turbo "T"]

If the motor has not been opened or front cover/oil pump have not been opened/taken apart, there may be no need to prime. However, if it makes ya feel better here ya go.

Take cam sensor out, use a long flat head bit in drill, insert into cam sensor hole, connect to oil pump stem, spin drill until you see oil from DS rockers, or when you start seeing a reading on your oil pressure gauge.

Some folks will open the oil pump assembly & pack full of petroleum jelly.

 

[TurboTGuy]

I wouldn't "floor it" from start....

 

[THensley]

Unplug the Pink (I think) wire close to the battery and crank it tell your oil pressure comes up.

 

['87 Turbo "T"]

Unplug the Pink (I think) wire close to the battery and crank it tell your oil pressure comes up.

That would be the orange wire to the ECM.

 

[THensley]

That would be the orange wire to the ECM.

thanks I was to lazy to go look

 

[BFlat]

I wouldn't "floor it" from start....

Sounds crazy, right? I had a GN years ago & was told to do that to prime after it’s been sitting for awhile. Car wouldn’t start with it floored when I tried it numerous times. Maybe I just got lucky. Anybody know for sure?

 

[salvageV6]

It puts you into clear flood mode. Might be in the owners manual it is in the service manual here.

 

['87 Turbo "T"]

Are we talking fuel or oil pressure here?

If it’s fuel just turn key a few times & watch fuel pressure gauge. Then you know you have fuel at your injectors.

 

[1986 Buick GX1]

I have an anti-theft switch to shut off the fuel pump which I use to fill the oil filter after oil changes as well.
You could also unplug the fuel pump connector at the back of the car.

 

[BFlat]

Are we talking fuel or oil pressure here?

If it’s fuel just turn key a few times & watch fuel pressure gauge. Then you know you have fuel at your injectors.

Thanks. Asking about oil pressure.

 

['87 Turbo "T"]

Thanks. Asking about oil pressure.

Post #2, or #4.