Need some help! Replaced head gasket, now motor is stuck!!
CF Veteran
Joined: Apr 2009
Posts: 4,734
Likes: 12
Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
But if there is NOT water in the cylinder, you haven't narrowed down the problem. You can't prove a negative.
OK, I'm a little pi$$ed at the place I took the head to. I asked them to call me after they did the pressure test, they just decided to go ahead and machine it. They said it passed the pressure test but was out .008" from flat. That doesn't seem like enough to give me that much of a leak, does it??
Junior Member
Joined: Mar 2013
Posts: 97
Likes: 1
From: Denver, CO
Year: 1998
Model: Cherokee
Engine: 4.6L Stroked
It's possible. Check your block also. If you have a straight edge make sure there is no warping in the block also. Just seal every bolt with liquid sealer, I know it only says the one but that can also lubricate the bolts while you tighten them. Obviously make sure the head gasket is on correctly and you are sealing the water jackets.
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
I maters plenty if that weere .08 from end to end, or across. In any case it's too much. (I'd be pissed too, but at least it looks like you have a good head). How much Btw? Looks like you are "painted into a corner". Just make sure the right "sealant", on #11 so that is not a question. Idk myself, I might use Rectom seal, or Recor seal...Idk though.
CF Veteran
Joined: Apr 2009
Posts: 4,734
Likes: 12
Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
I guess I'll find out in a day or two when I can get to it. Now I've got another $50 for the pressure test, $50 for the machining, and another $50 for new head bolts and ANOTHER new gasket.
I think what I am going to do, before I put this motor back together completely, is to put the head on, torque it down and fill it up with coolant. Then I'm going to spin it over by hand, it shouldn't matter if I have the pushrods and rocker arms on as they are just torqued down no matter what position they are in. I want to make sure this thing is at least starting out sealed up, it is a total PITA getting those lower intake/exhaust bolts in and out. If it leaks again immediately I'm going to push it in the back yard where I don't have to look at it until next Spring!!
I think what I am going to do, before I put this motor back together completely, is to put the head on, torque it down and fill it up with coolant. Then I'm going to spin it over by hand, it shouldn't matter if I have the pushrods and rocker arms on as they are just torqued down no matter what position they are in. I want to make sure this thing is at least starting out sealed up, it is a total PITA getting those lower intake/exhaust bolts in and out. If it leaks again immediately I'm going to push it in the back yard where I don't have to look at it until next Spring!!
Junior Member
Joined: Mar 2013
Posts: 97
Likes: 1
From: Denver, CO
Year: 1998
Model: Cherokee
Engine: 4.6L Stroked
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
I myself am not familiar with how they would pressure test, (every different head?) Just magna-fluxing for cracks is all I'm familiar with. If it was machined, best cleaned with the valves removed. I might "lap" them with some compound and a reversible drill and a section of fuel line. A bit "shade tree", but effective. That and new valve stem seals and you may be good to go, a good bit!
Just lightly oil the treads of the (other), head bolts. I migt grrab a set of bolts at pickNpull before I spent $50. That's just me though!
Just lightly oil the treads of the (other), head bolts. I migt grrab a set of bolts at pickNpull before I spent $50. That's just me though!
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Ken, are you saying you would install/torque a dry head bolt with no lube?
Yea Firestorm, that goes without saying. Don't forget you can safely go twice. $50 is a "chunk of change" or some of us!
Yea Firestorm, that goes without saying. Don't forget you can safely go twice. $50 is a "chunk of change" or some of us!



