hydro lock
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Logistics Pro
Joined: Jun 2009
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Likes: 6
From: metairie, LA
hydro lock
Iam going to be changing injectors in a week or so. is there any way to avoid oil in the cylinder all together? or the BEST way to make sure it is all out. or to get it all out.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Jim says if you have the injectors ready to go right there, you can pull one and slam the next one in and have no problems.
But he knows more about that.
i'd rather play it safe either way.
But he knows more about that.
i'd rather play it safe either way.
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Logistics Pro
Joined: Jun 2009
Posts: 4,116
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From: metairie, LA
when i get mine(extras) back from him, itll be a swap.
Post Fiend
Joined: Mar 2007
Posts: 9,010
Likes: 5
From: Johnson City, TN.
I drained my rails but some oil still got in there. Be safe and suck it out or atleast spin it with the GP's out. be sure to have the valve covers on there with a couple bolts finger tight. No gasket required.
Leave the valve covers off if you want to paint the walls with oil and possibly visit the hospital. LOL
Leave the valve covers off if you want to paint the walls with oil and possibly visit the hospital. LOL
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
You can pull the plugs in the rail, or just park uphill or downhill and remove the down hill injector first so it catches most of the oil and fuel. Let them drain for a short while before pulling the other injectors.
A vacuum pump works if you have all the stuff. I just turn the crank with a breaker bar (and rags placed over the holes because oil will shoot out an injector cup in a big stream that will travel about 12') a few times, then install the injectors with the glow plugs removed. Then I pull the IDM fuse and unplug the CPS and turn the engine over several times with the key (again lots of rags or set the valve covers back in place).
If you're worried about hydro-locking the engine, then you'll pay attention and get the fluids out so you don't have an issue. It's the ones who never worry about it that get in trouble.
A vacuum pump works if you have all the stuff. I just turn the crank with a breaker bar (and rags placed over the holes because oil will shoot out an injector cup in a big stream that will travel about 12') a few times, then install the injectors with the glow plugs removed. Then I pull the IDM fuse and unplug the CPS and turn the engine over several times with the key (again lots of rags or set the valve covers back in place).
If you're worried about hydro-locking the engine, then you'll pay attention and get the fluids out so you don't have an issue. It's the ones who never worry about it that get in trouble.
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Elder User
Joined: Sep 2003
Posts: 892
Likes: 3
From: Quinton NJ
I drained my rails but some oil still got in there. Be safe and suck it out or atleast spin it with the GP's out. be sure to have the valve covers on there with a couple bolts finger tight. No gasket required.
Leave the valve covers off if you want to paint the walls with oil and possibly visit the hospital. LOL
Leave the valve covers off if you want to paint the walls with oil and possibly visit the hospital. LOL
You can pull the plugs in the rail, or just park uphill or downhill and remove the down hill injector first so it catches most of the oil and fuel. Let them drain for a short while before pulling the other injectors.
A vacuum pump works if you have all the stuff. I just turn the crank with a breaker bar (and rags placed over the holes because oil will shoot out an injector cup in a big stream that will travel about 12') a few times, then install the injectors with the glow plugs removed. Then I pull the IDM fuse and unplug the CPS and turn the engine over several times with the key (again lots of rags or set the valve covers back in place).
If you're worried about hydro-locking the engine, then you'll pay attention and get the fluids out so you don't have an issue. It's the ones who never worry about it that get in trouble.
A vacuum pump works if you have all the stuff. I just turn the crank with a breaker bar (and rags placed over the holes because oil will shoot out an injector cup in a big stream that will travel about 12') a few times, then install the injectors with the glow plugs removed. Then I pull the IDM fuse and unplug the CPS and turn the engine over several times with the key (again lots of rags or set the valve covers back in place).
If you're worried about hydro-locking the engine, then you'll pay attention and get the fluids out so you don't have an issue. It's the ones who never worry about it that get in trouble.
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Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
for a tool to suck the cylinders out go to tractor supply and get this vacuum pump!!! Liquivac Large Engine/Project Model Oil Changing System - 3000504 | Tractor Supply Company
that is the pump i use and it works AWESOME for draining the HPOP rez and the cylinders. much faster than a hand pump for sure. just don't vacuum gasoline with it. It turns out that will ruin the suction cup in the pump.
I never pull the plugs on the oil rails. waste of time b/c you will end up sucking the cylinders anyways, then blowing them out with the injectors in place and GP's removed and cranking the engine with the #22 and #9? under hood fuses pulled out or just don't plug in the injectors.
that is the pump i use and it works AWESOME for draining the HPOP rez and the cylinders. much faster than a hand pump for sure. just don't vacuum gasoline with it. It turns out that will ruin the suction cup in the pump.
I never pull the plugs on the oil rails. waste of time b/c you will end up sucking the cylinders anyways, then blowing them out with the injectors in place and GP's removed and cranking the engine with the #22 and #9? under hood fuses pulled out or just don't plug in the injectors.
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