After head removal/re-install?
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After head removal/re-install?
I lifted the cab off the truck to do the work.
I will have to re-fill the coolant, powersteering oil, tranny (a little), engine oil.
The fuel system is completely dry.
Is there something I should do before attempting a engine re-start?
Fuel purge of some kind, air bubbles on coolant?? High pressure oil rails purge?
I don't really want to break a few injectors because I would have skipped a step here.
thank you
I will have to re-fill the coolant, powersteering oil, tranny (a little), engine oil.
The fuel system is completely dry.
Is there something I should do before attempting a engine re-start?
Fuel purge of some kind, air bubbles on coolant?? High pressure oil rails purge?
I don't really want to break a few injectors because I would have skipped a step here.
thank you
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Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
Make sure you get the secondary fuel bowl full before you try to crank it, and expect about 45-60 seconds of CONTINUOUS cranking for it to fire. It will bitch and miss for a while after it cranks, so just check the oil pressure gauge and coolant levels and check for leaks while it's running. We normally don't even put the air/intercooler pipes back on the turbo until it gets running. The high pressure oil system will be full of air and may take a day or so to get out of the system. This is normal, so be prepared. Main thing is check for leaks, pressures, and temps while it's running initially.
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I removed the little bolt on top of each Oil rails and filled them as much as I could with oil, the is still a little air, but much much less than before I did this.
so basically, I will have to crank for like 1 minute continuously before it will come back to life?
so basically, I will have to crank for like 1 minute continuously before it will come back to life?
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From: Las Vega$
Originally Posted by mulot30th
I removed the little bolt on top of each Oil rails and filled them as much as I could with oil, the is still a little air, but much much less than before I did this.
so basically, I will have to crank for like 1 minute continuously before it will come back to life?
so basically, I will have to crank for like 1 minute continuously before it will come back to life?
turn the key ON, but not to the start position. this will activate the fuel pump. listen to it. it should be louder than normal when it is dry. wait till it shuts off.
turn key off, then back to ON again. listening to fuel pump. you will hear a change in the sound as it starts pumping fuel.
you will also hear the change in sound as the fuel pressure regulator on top of the engine fills up.
you will need to cycle the key like this 8-10 times to fully purge the air out of the fuel system. NEVER crank or try to start the engine until this has been done ! !
then crank it. i would not crank it more than 10 seconds at a time. if it doesnt start. stop. wait a few seconds and crank it again.
it is not good to crank a starter more than about 15 seconds at a time. they may be heavy duty, but the amount of heat generated by a starter while cranking is more than you would think. this includes the cables from the battery to the starter, they heat up too.
take your time do it right you should have no problems.
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Joined: Dec 2003
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From: Stuttgart, Ar
I agree about the fuel, but I have to disagree about the starter. It needs to crank until it starts. It will get warm, yes, but it needs the crank time to help to purge the air out of the HPO system to fire the injectors. I've seen several done like this with no harm to the starter. Matt's done his truck I don't know how many times and still has the original starter. Crank that baby.
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my dad owns a starter and alternator repair shop, so when he pulled mine apart after a series of long cranking the armature was toast. I completely agree with LvTitan on this, the starter should be given time to cool for 10-15 after 15-20 seconds of cranking.
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Originally Posted by LvTitan
NO ! ! !
turn the key ON, but not to the start position. this will activate the fuel pump. listen to it. it should be louder than normal when it is dry. wait till it shuts off.
turn key off, then back to ON again. listening to fuel pump. you will hear a change in the sound as it starts pumping fuel.
you will also hear the change in sound as the fuel pressure regulator on top of the engine fills up.
you will need to cycle the key like this 8-10 times to fully purge the air out of the fuel system. NEVER crank or try to start the engine until this has been done ! !
then crank it. i would not crank it more than 10 seconds at a time. if it doesnt start. stop. wait a few seconds and crank it again.
it is not good to crank a starter more than about 15 seconds at a time. they may be heavy duty, but the amount of heat generated by a starter while cranking is more than you would think. this includes the cables from the battery to the starter, they heat up too.
take your time do it right you should have no problems.
turn the key ON, but not to the start position. this will activate the fuel pump. listen to it. it should be louder than normal when it is dry. wait till it shuts off.
turn key off, then back to ON again. listening to fuel pump. you will hear a change in the sound as it starts pumping fuel.
you will also hear the change in sound as the fuel pressure regulator on top of the engine fills up.
you will need to cycle the key like this 8-10 times to fully purge the air out of the fuel system. NEVER crank or try to start the engine until this has been done ! !
then crank it. i would not crank it more than 10 seconds at a time. if it doesnt start. stop. wait a few seconds and crank it again.
it is not good to crank a starter more than about 15 seconds at a time. they may be heavy duty, but the amount of heat generated by a starter while cranking is more than you would think. this includes the cables from the battery to the starter, they heat up too.
take your time do it right you should have no problems.
There is still one thing I question myself about.
The fuel enters each head from the front of engine, and have no place to exit at rear since its a dead end fuel system.
How can priming the fuel system whatever times will purge air from the 'fuel rail' in the head? I understand it will purge air up to about the fuel filter, but can't see this purging any air from there to injectors..
Isn't it supposed the injectors can fail if they get air?
I guess I will have to make certain not to press the throttle pedal until it completely purge by running at idle ?
thank yoyu
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It started in 15-20 seconds... and what to say....
it friggin rips now... was missing a lot of performance from my perforated up pipe.... (I did that at same time as gaskets)
Now I shift her in 3rd gear and smokes tires right from there! (bfg ta/ko 285/60 r18 which have a lot lot lot more traction than stock tires btw)
it friggin rips now... was missing a lot of performance from my perforated up pipe.... (I did that at same time as gaskets)
Now I shift her in 3rd gear and smokes tires right from there! (bfg ta/ko 285/60 r18 which have a lot lot lot more traction than stock tires btw)
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From: Las Vega$
Originally Posted by npccpartsman
I agree about the fuel, but I have to disagree about the starter. It needs to crank until it starts. It will get warm, yes, but it needs the crank time to help to purge the air out of the HPO system to fire the injectors. I've seen several done like this with no harm to the starter. Matt's done his truck I don't know how many times and still has the original starter. Crank that baby.
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From: Las Vega$
Originally Posted by mulot30th
There is still one thing I question myself about.
The fuel enters each head from the front of engine, and have no place to exit at rear since its a dead end fuel system.
How can priming the fuel system whatever times will purge air from the 'fuel rail' in the head? I understand it will purge air up to about the fuel filter, but can't see this purging any air from there to injectors..
Isn't it supposed the injectors can fail if they get air?
I guess I will have to make certain not to press the throttle pedal until it completely purge by running at idle ?
thank yoyu
The fuel enters each head from the front of engine, and have no place to exit at rear since its a dead end fuel system.
How can priming the fuel system whatever times will purge air from the 'fuel rail' in the head? I understand it will purge air up to about the fuel filter, but can't see this purging any air from there to injectors..
Isn't it supposed the injectors can fail if they get air?
I guess I will have to make certain not to press the throttle pedal until it completely purge by running at idle ?
thank yoyu
and again, yes, let it idle till it's all good before getting on the throttle.