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2.4L Multiair


DadsallWright2020

New Member
Joined
Mar 21, 2020
Messages
12
Reaction score
2
Points
3
Location
Lenoir, NC
Vehicle Year
1985
Make / Model
Ford Ranger 4X4
Engine Type
2.3 (4 Cylinder)
Transmission
Manual
2WD / 4WD
4WD
Total Lift
3 Inch body lift
I’ve got a 2016 Jeep Cherokee that I’ve been working on (it’s my wife’s daily) and it had burnt a valve a few weeks ago. I pulled the head, reworked it, done a valve job, changed all upper gaskets (head, valve cover, intake/exhaust manifold, VVA). After putting it all back and trying to start it the car won’t crank. I’ve been online and done some research about the VVA (Variable Valve Actuator) and some people are saying that the “brick” loses oil prime and it’s difficult to get it back. I’ve turned the car over 15 times at least with no compression (I think due to the fact that the VVA is holding the intake valves open) so I’m at a loss. Anyone got any pointers?
 


Rock Auto 5% Discount Code: 7FA902352B4C01: April 5th, 2021

8thTon

Well-Known Member
Joined
Jan 13, 2019
Messages
1,268
Reaction score
730
Points
113
Location
Pennsylvania
Vehicle Year
2004
Make / Model
Ford
Engine Type
3.0 V6
Engine Size
3.0
Transmission
Automatic
2WD / 4WD
2WD
My credo
My world is filled with stuff that needs to be fixed
I’ve got a 2016 Jeep Cherokee that I’ve been working on (it’s my wife’s daily) and it had burnt a valve a few weeks ago. I pulled the head, reworked it, done a valve job, changed all upper gaskets (head, valve cover, intake/exhaust manifold, VVA). After putting it all back and trying to start it the car won’t crank. I’ve been online and done some research about the VVA (Variable Valve Actuator) and some people are saying that the “brick” loses oil prime and it’s difficult to get it back. I’ve turned the car over 15 times at least with no compression (I think due to the fact that the VVA is holding the intake valves open) so I’m at a loss. Anyone got any pointers?
You mean it cranks (turns over) but won't start? Follow the start proceedure in the owners manual for cars that haven't been started in a while. It's a hydraulic valve actuation system that uses engine oil for the fluid, and if it's not full of oil the intake valves don't open. You run the starter for a bit then let it rest to cool off, then try again. It should be described in the manual.
 

DadsallWright2020

New Member
Joined
Mar 21, 2020
Messages
12
Reaction score
2
Points
3
Location
Lenoir, NC
Vehicle Year
1985
Make / Model
Ford Ranger 4X4
Engine Type
2.3 (4 Cylinder)
Transmission
Manual
2WD / 4WD
4WD
Total Lift
3 Inch body lift
So, I reverted to the manual before the post for the startup procedure. When the VVA was placed on the head we didn't have the tool available (mostly because I refuse to pay $780 for a tool that puts a $670 part on) so we kind of winged it. The gentleman that I have helping me is a mechanic, but with little knowledge on these motors, so he did the best he knew how to put it on the head. After multiple attempts to start the engine, I pulled the valve cover back off to inspect the placement of the "brick", only to find that even after torquing the bolts to spec the VVA had shifted forward. This caused the actuators to sit on the valve spring retainer plates and bent all 8 of my intake valves, thus the reason why i wasn't getting any compression..
 

Dirtman

President of The United States
Supporting Member
Joined
May 28, 2018
Messages
14,265
Reaction score
8,341
Points
113
Location
41N 75W
Vehicle Year
2009
Engine Type
2.3 (4 Cylinder)
Transmission
Automatic
2WD / 4WD
2WD
Total Lift
It's up there.
Total Drop
It's down there.
Tire Size
Round.
Aren't chryslers awesome.
 


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