For todays project, the drivers side valve cover is going to be
replaced in a 1998 ford crown victoria police interceptor.
The driver's side valve cover is not leaking as bad as the passenger's
side one was. But the valve cover gasket has been leaking faster as
time goes on. And it doesn't take too much driving to coat the side of
the power steering fluid reservoir in crankcase oil anymore.
First step of the project is to remove the windshield wiper cowl and
wiper arm linkage
The harness tape which is supposed to hold the windshield washer hoses
stationary in relation to the wiper tray has flaked off. So extra
attention is paid to how the washer hoses route during disassembly.
The power brake booster and brake lines obstruct access to the valve
So a ratchet with some wobble bar extensions and a deep socket is used
to remove the nuts on the inside of the car which hold the brake
booster to the firewall
Now there is more space in the engine bay after the brake booster has
A hand ratchet with a deep 8mm socket and long extension bar works well
for removing the valve cover bolts
Here's a closeup of the camshaft position sensor setup
And a couple closeup pictures of where the front cover meets the
The rear of the brake master cylinder has a slow hydraulic fluid leak
Brake fluid eats paint off of metal in a hurry. It will also fail the
rubber diaphragm inside the booster at some point too.
Here's the bottom side of the valve cover
And top side
And the valve cover with the oil fill cap removed.
If you have a flexible fiber-optic camera, you could look around at
your crownvic's valvetrain without removing the valve covers by going
in through the filler cap opening
And here's the old gasket next to the new felpro gasket/grommets
A large flate blade screw driver was used to twist the grommets out
from the back side of the valve cover
Interestingly, the old valve cover gasket material was still reasonable
flexible. And it was still in original shape and not all flattened out.
The main source of the oil leaks appeared to be around the cover
The valve covers do not bolt directly to the cylinder heads. Instead,
the grommets are bolted to the cylinder head which then suspends the
valve cover over the cylinder head on a rubber cushion with the valve
cover gasket wedged in between.
The valve cover with the cool new blue colored felpro gasket held in
place using some rtv
Make sure that the gasket channels in the valve cover are really clean
prior to inserting the new gasket
The 1992-2002 crownvics have the oil fill located drivers side valve
cover. The 2003-2009 crown vics have the oil fill located on the
passengers side valve cover
Here's a closeup of the casting information on the valve cover.
And a closeup of the bottom of the pcv breather fitting
Here's the cylinder head after removing the old valve cover gasket. And
then cleaning the metal with some carberator cleaner and soft kitchen
And a couple closeup pictures of where the cylinder head meets the
front timing cover
A test fit of the valve cover to make sure that the valve cover gasket
stayed in place
Here's a couple closeup pictures of the camshaft, roller followers,
valve springs, and hydraulic lash adjusters
Unlike the passengers side, all of the valve cover fasteners have 8mm
The airbox makes a handy holder for the valve cover fasteners
And after getting all of the remaining rtv off of the junction of the
front timing cover and cylinder head
And after applying some new ultra-copper permatex rtv sealant and
placing the valve cover back on the engine
Now lets reinstall the power steering reservoir bracket
Make sure to place the camshaft sensor wiring behind the power steering
bracket prior to tightening down all of the fasteners
And remember to reconnect the cylinder head temperature sensor too
Now reinstall the power brake booster and air intake stuff
And now the windshield wiper tray stuff
To remove these arms, lift the arms upwards and slide the tab.
Installation is the reverse of removal.
Make sure to plug the wiper motor electrical connector in before
bolting the wiper tray to the body of the car.
Also make sure that the windshield washer fluid hoses are routed such
that they do not bind on the wiper transmission components.