Injector install; need some quick help
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Senior User
Joined: Feb 2010
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From: Harford County, MD
Injector install; need some quick help
Merry Christmas & Happy New Year to all!
I haven't been on here for a while as I have not had time to work on my truck for quite some.
I am finally installing my Swamps injectors after the truck has been sitting since April. Question I have is: since the truck has been sitting with the old injectors out since April, is it possible that all of the oil/fuel that ran into the cylinders has leaked down and/or evaporated? I have a good vacuum source and I am not getting much of anything out of the cylinders. I am anxious to start installing the new injectors but don't want to close everything up if it is possible that there is still enough fluid in the cylinders to hydro-lock.
As always, I appreciate your time and assistance!
Thanks,
Tom
I haven't been on here for a while as I have not had time to work on my truck for quite some.
I am finally installing my Swamps injectors after the truck has been sitting since April. Question I have is: since the truck has been sitting with the old injectors out since April, is it possible that all of the oil/fuel that ran into the cylinders has leaked down and/or evaporated? I have a good vacuum source and I am not getting much of anything out of the cylinders. I am anxious to start installing the new injectors but don't want to close everything up if it is possible that there is still enough fluid in the cylinders to hydro-lock.
As always, I appreciate your time and assistance!
Thanks,
Tom
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Joined: Jan 2009
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From: Ellensburg, WA
If it were me, I would still try to blow out any fluids just to make sure. After the new injectors are in, take out the glowplugs (much easier when the injectors are out), keep the UVCH unplugged, reinstall the valve covers with 2 bolts finger tight, and bump the starter a couple times for at least 10 seconds with a minute rest in between bumps.
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From: Harford County, MD
Thanks for the quick reply!!
I was pretty sure that was the answer I was going to receive. As much money as I have tied up in parts it would be foolish not to try and blow it out I suppose! Just thought since I wasn't getting anything with my Mityvac it all must have drained down.
Thanks again!
I was pretty sure that was the answer I was going to receive. As much money as I have tied up in parts it would be foolish not to try and blow it out I suppose! Just thought since I wasn't getting anything with my Mityvac it all must have drained down.
Thanks again!
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Actually, with the new injectors in place while you are doing that, pull a plug on the top-side oil rail on each head and crank for as long as needed to get oil up into both oil rails. I do the forward most plug I can get to since the engine is tilted back, so that you get as much oil in there as possible. I also use a button with gator clips on the fender solenoid so I can stop cranking once I see oil in the rails (you still need the key on so that the IPR will close).
With glow plugs out there is very little compression and the starter has to work a lot less doing it this way.
I also leave the vc's off till it's fired and running well, won't make a mess and you can see to make sure everything works so you don't have to take it all back apart if there's an issue.
With glow plugs out there is very little compression and the starter has to work a lot less doing it this way.
I also leave the vc's off till it's fired and running well, won't make a mess and you can see to make sure everything works so you don't have to take it all back apart if there's an issue.
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Thread Starter
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Senior User
Joined: Feb 2010
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From: Harford County, MD
With glow plugs out there is very little compression and the starter has to work a lot less doing it this way.
I also leave the vc's off till it's fired and running well, won't make a mess and you can see to make sure everything works so you don't have to take it all back apart if there's an issue.
I also leave the vc's off till it's fired and running well, won't make a mess and you can see to make sure everything works so you don't have to take it all back apart if there's an issue.
So you leave the valve covers off through the entire process and it doesn't shoot oil/fuel all over the place?? Most threads I have read say you must put the vc's back on because the fluids will be shot out at high pressure. I would prefer to leave them off as you suggest if it is not going to make a mess................(Especially concerned about fluids shooting out as I am working on the truck in a friends garage!)
Thanks again,
Tom
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