4.7L Crankcase breather question - JeepForum.com

 
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post #1 of 10 Old 06-03-2013, 08:10 PM Thread Starter
jkelley429
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2001 WJ 
 
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Location: White Bluff
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Wj 4.7L Crankcase breather question

Several months ago I had a local mechanic replace the valve covers on my engine.
It seemed to run fine since then, but today as I was replacing the spark plugs I bumped the drivers side crankcase breather that threads into the cylinder head and broke it. Apparently the mechanic had broken it and decided to super glue it back on instead of telling me it broke.

My question is, will it affect anything being disconnected until I can get it fixed? Also, are there any alternatives to fix it such as putting an individual breather on it? Its only $15 for the part but if I can put an individual breather on I would rather just do that.

I tried searching but all the threads for ccv were for the 4.0.


2001 Grand Cherokee WJ Limited- 4.7L Selec-Trac
Cherry Bomb Vortex Muffler- Everything else stock for now
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post #2 of 10 Old 06-06-2013, 08:01 AM Thread Starter
jkelley429
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Come on guys, 89 views and no replies?

2001 Grand Cherokee WJ Limited- 4.7L Selec-Trac
Cherry Bomb Vortex Muffler- Everything else stock for now
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post #3 of 10 Old 06-06-2013, 08:42 AM
01ShowMeWJ
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I haven't seen mine in awhile but I'm sure you can replace it with a aftermarket cone filter. I've done it before on a Dodge pickup V6. They sell them in the same section as the cold air intake kits. It was a direct filter and got rid of all the tubing involved with it. Your WJ shouldn't run bad with it off it just may spit a little oil in your engine compartment. You could always tape a rag over it to keep debris out.
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post #4 of 10 Old 06-06-2013, 08:48 AM
Double E
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Got picture? I can't picture mine but I think a JY visit would do the trick, right?

2000 Laredo 4.7L Selec-Trac. 177K miles, Leather, 245 tires, tow package, crappy CD changer, full size spare, roof cross-rails & sunroof.
Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. Jeepforum.com sticker, Visit cobaltboatsforum.com when you can!
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post #5 of 10 Old 06-07-2013, 03:12 PM Thread Starter
jkelley429
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I found the factory replacement that threads into the head on ebay for $20. It comes with driver and passenger side. I will probably do cone filters on the replacements.

2001 Grand Cherokee WJ Limited- 4.7L Selec-Trac
Cherry Bomb Vortex Muffler- Everything else stock for now
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post #6 of 10 Old 09-23-2014, 12:01 AM
Laredo2000
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How hard was it to get the broken breather out of the head?
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post #7 of 10 Old 12-01-2015, 12:25 PM
Double E
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Funny that since I wrote that post in 2013, I've now broken my own on the passenger side and know exactly what and where it goes. It is part #53030850AB.
Dealers near me are selling it for $4.25 & 4.99. Don't know when it broke.

I was thinking of just gluing it back together until I learned how much it cost. Apparently there is some sort of thread sealant on this thing too and combined with the location, it's going to be fun to remove/replace. Mine has been broken for some time as I can see some oil weeping down the back of the block. I imagine that it is letting in air to the intake as well.

Perhaps this is what's causing my occasional engine stumble at highway speeds?

2000 Laredo 4.7L Selec-Trac. 177K miles, Leather, 245 tires, tow package, crappy CD changer, full size spare, roof cross-rails & sunroof.
Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. Jeepforum.com sticker, Visit cobaltboatsforum.com when you can!
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post #8 of 10 Old 12-01-2015, 07:27 PM
thecause17
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I need to look into replacing mine. They must have changed this somewhere along the line or in different applications because my '07 Dakota only had one, and it was metal.

'04 Columbia 4.7HO - 3" IRO/OME, Bilstein, KOR, Zone, Superchips, Gibson, 255/70 Grabbers on Gray JK wheels
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post #9 of 10 Old 12-02-2015, 08:01 AM
Breadfan
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post #10 of 10 Old 01-06-2016, 02:57 PM
Double E
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Update: I did end up gluing it back together and also swapped the driver for the passenger side. The broken passenger side one looks like the clearance is so tight on it, that a good twist of the engine on it's mounts would create contact.
SO the glued together one is on the driver's side where it will see no contact. I'll check it to see how it did this week. My nearest dealer did not have them and I was too busy to go to the further away dealer when I had some epoxy in my hand... It also removed from the screw-in fitting easily with a large hex key.
Don't know if it solved the stumbling issue yet.

2000 Laredo 4.7L Selec-Trac. 177K miles, Leather, 245 tires, tow package, crappy CD changer, full size spare, roof cross-rails & sunroof.
Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. Jeepforum.com sticker, Visit cobaltboatsforum.com when you can!
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