Injector sealing problems
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
I forgot about the OEM CheckValve
There should be NO Compression in the Fuel Rail at any Point With or Without Check Valve
With a Check valve you wouldnt think the Air bubbles would make it to the Upper Fuel filter housing But I think the Bad ones do get air Reverse threw the check Valve
In therory the check valve should hold it in that head GReat Point
There should be NO Compression in the Fuel Rail at any Point With or Without Check Valve
With a Check valve you wouldnt think the Air bubbles would make it to the Upper Fuel filter housing But I think the Bad ones do get air Reverse threw the check Valve
In therory the check valve should hold it in that head GReat Point
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
I even went as far as to run the Holddown bolt into each Hole with inject out and Make shure it Torqed out the Holddown and Not the Bolt Threads
I Measured the thickness of the Holddown and then Torqed the Bolt Alone to 26ft/lbs then measured the Space from Bolt Head to Head and as long as I had Less Space then the Width of the holddown I was Good
If that makes sense this only assures it Torqed properly
If the Holddown is Streched your still Toast
I Measured the thickness of the Holddown and then Torqed the Bolt Alone to 26ft/lbs then measured the Space from Bolt Head to Head and as long as I had Less Space then the Width of the holddown I was Good
If that makes sense this only assures it Torqed properly
If the Holddown is Streched your still Toast
Thread Starter
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Freshman User
Joined: Oct 2011
Posts: 44
Likes: 0
When the truck quit this time with the 6.4 banjo bolts it did not liquid lock the engine and i didnt see as much white smoke as it had the other times. When i pulled the upper fuel filter lid and spun over the engine fuel went everywhere, so compression was entering the fuel system.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
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Freshman User
Joined: Oct 2011
Posts: 44
Likes: 0
Never turned key on, used a remote starter switch didnt think the fuel pump would run with the key off. It was compression getting by the number 5 injector since the bottom o-ring was gone, most of the fuel left the filter housing at once.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
I suspect you might have suffered from loow Fuel press and or BAD Injectors and the injectors Leak fuel into cylinder and Burn the Copper Washer
But they are not installed at Spec
Low Fuel Press will Scar the Pluger in the inject and it will Hang up
But they are not installed at Spec
Low Fuel Press will Scar the Pluger in the inject and it will Hang up
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
injectors are not all the same nither are hold downs. they have 3c3z,4c3z,5c3z part numbers for a reason.
replace the injectors,o-ring kits and hold downs on the effected cyclinder and use a torque wrench to install, also lube the o-rings
replace the injectors,o-ring kits and hold downs on the effected cyclinder and use a torque wrench to install, also lube the o-rings