5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

starting a sitting 5.0

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Old 07-01-2007, 02:56 PM
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50conv
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Default starting a sitting 5.0

what should i do before i try to start up my 5.o thats ben sitting for about 2 yrs. 1990, automatic.
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Old 07-01-2007, 02:59 PM
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luckythirteen13
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Default RE: starting a sitting 5.0

change the plugs, oil, coolant, drain the fuel out and put in new stuff. check the tranny oil.
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Old 07-01-2007, 03:00 PM
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Default RE: starting a sitting 5.0

thank you sir
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Old 07-01-2007, 03:14 PM
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OnyxCobra
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Default RE: starting a sitting 5.0

before i start mine every year i unplug the coil and turn the engine over to let the oil pump up through the engine, then i reconnect the coil and fire it.
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Old 07-01-2007, 03:20 PM
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luckythirteen13
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Default RE: starting a sitting 5.0

onyxcobra reminded me of something. get a breaker bar and turn the motor over by hand to make sure its not seized or hydro locked.
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Old 07-01-2007, 03:22 PM
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Default RE: starting a sitting 5.0

alright guys, appreciate your help
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Old 07-01-2007, 05:08 PM
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angcobra
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Default RE: starting a sitting 5.0

ORIGINAL: OnyxCobra

before i start mine every year i unplug the coil and turn the engine over to let the oil pump up through the engine, then i reconnect the coil and fire it.
I am not real fond of that method especially if you have aftermarket high energy ignition. This really turns the oil pump to slow to get the oil there very fast and you can burn out ignition components with the coil wire out.

If you are really concerned about lubrication from a long setup, then put a little 3 in 1 oil in the cylinders through the plug holes and remove the distributor and use a socket with speed handle/drill to turn the oil pump shaft. Then rotate the engine by hand/pull handle several rotations and then prime the oil pump again. Put the distributor and plugs back in, hook up the wires and give it a try.

Fuel is another concern, two years is too long without fuel stabilizer, drain the fuel before powering up the fuel pump. If you know it will sit for a while, add fuel stabilizer to the last full tank.
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Old 07-01-2007, 05:25 PM
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Default RE: starting a sitting 5.0

thanks angcobra, appreciate it man.
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Old 07-01-2007, 05:28 PM
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OnyxCobra
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Default RE: starting a sitting 5.0

ORIGINAL: angcobra

ORIGINAL: OnyxCobra

before i start mine every year i unplug the coil and turn the engine over to let the oil pump up through the engine, then i reconnect the coil and fire it.
I am not real fond of that method especially if you have aftermarket high energy ignition. This really turns the oil pump to slow to get the oil there very fast and you can burn out ignition components with the coil wire out.

If you are really concerned about lubrication from a long setup, then put a little 3 in 1 oil in the cylinders through the plug holes and remove the distributor and use a socket with speed handle/drill to turn the oil pump shaft. Then rotate the engine by hand/pull handle several rotations and then prime the oil pump again. Put the distributor and plugs back in, hook up the wires and give it a try.

Fuel is another concern, two years is too long without fuel stabilizer, drain the fuel before powering up the fuel pump. If you know it will sit for a while, add fuel stabilizer to the last full tank.
really? never thought of that. It definitely turns it over faster than u can by hand, though. an oil pump primer would be ideal.
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Old 07-01-2007, 06:00 PM
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keek89gt
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Default RE: starting a sitting 5.0

if u want you could also remove the distributor and turn the oil pump manually without have to crank the motor over...that is what i would do
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