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Unread 09-27-2012, 08:49 PM   #1
Jeepson33s
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2003 TJ Wrangler 
 
Join Date: May 2006
Location: Kennesaw, GA
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Replacing head gasket and everything is out...how to clean?

So i blew my head gasket and now i am replacing said gasket. I have the head, intake manifold and throttle body all laid out on my work bench and they are pretty gross.

I have heard all kinds of things on how to clean but i would love just a clear answer.

1) What can i use? I know its an iron head and not as soft as aluminum.

2) Where can i find the cleaning solvents?

3) what are the best tools to use?

4) do i need to remove the valves?

Now questions on how i go about deciding the re install

1) to mill or not to mill?

2) should i just call it a day and get an exchange head?

3) can i just re-install the old head with new gasket and bolts and do a compression test with nothing hooked up? If its good then am i in the clear?

Any help would be awesome....just trying to figure out where to go from here.

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2003 Wrangler Rubicon Intense Blue- 4" Rough Country X-Series lift - Bilstein 5100 Shocks - Currie RockJock V-Bumper and Rock Crawler Rear bumper - Badlands 12K winch - Tom Woods DS - KC Slimlites - KC Headlight conversion with 4300K HID - 285/75/16 BFG MT KM2 on Rubicon Wheels
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Unread 09-28-2012, 03:15 AM   #2
relgnarw
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Join Date: Mar 2010
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I would take the head to a machine shop and have them give it a good going over. They will clean it and check it for warpage, cracks, and check the valves/seats. I'd clean the mating surface of the block with some scotch brite and run a tap in the head bolt threads to clean them up. (Buy new head bolts while you're at it) As far as the intake goes just use some engine cleaner on it to clean it up. Just remember to take your time and think everything through.
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Unread 09-28-2012, 05:29 AM   #3
ShaysXJnc
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I just replaced the head on my 96 XJ with a one from a 97 zj. Took it to a machine shop where I paid about $100 for a complete milling and test of it... Very worth it. I didn't want to do all the work of pulling the head, having the exhaust off etc only for it not to work. Do all the freeze plugs while you're at it, too. It's cheap, easy, quick, and you might as eel do it now.

And I clean everything with break cleaner. Also, is your jeep sitting outside or in a temp controlled environment while you have everything taken off of it? Make sure you are aware of the moisture that will accumulate, and if surface rust happens, I use a little ATF to polish it clean.

Hope that helps some.

I forgot, the only tool I did not have that I needed was a torque wrench, but borrowed one from a neighbor. I should prob buy one seeing as I've done the head on my XJ twice now
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Unread 09-28-2012, 03:32 PM   #4
Jeepson33s
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Took mine in today to get checked...cracked. Went and exchanged it for a "new" one for 300$.
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2003 Wrangler Rubicon Intense Blue- 4" Rough Country X-Series lift - Bilstein 5100 Shocks - Currie RockJock V-Bumper and Rock Crawler Rear bumper - Badlands 12K winch - Tom Woods DS - KC Slimlites - KC Headlight conversion with 4300K HID - 285/75/16 BFG MT KM2 on Rubicon Wheels
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Unread 09-28-2012, 03:44 PM   #5
relgnarw
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That's a good deal, when will you have it back up and running?
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"I had wobster at Wed Wobster" - Austin age 5

My onboard air build.
[url]http://www.jeepforum.com/forum/f176/viair-install-02-tj-w-cruise-5-spd-1379665/[/url]
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Unread 09-28-2012, 10:47 PM   #6
Jeepson33s
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I got most of it back on today after work...should get the exhaust and intake on and then off to the races. 400$ was not too bad for the entire top end of the engine to be replaced. Shop quoted 2k "at the minimum". My wife always says "why dont you have someone else do it and save yourself the time?" and i show her the bill and then suddenly its cool if i do it and acquire new tools in the process that i "need". yeah...
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2003 Wrangler Rubicon Intense Blue- 4" Rough Country X-Series lift - Bilstein 5100 Shocks - Currie RockJock V-Bumper and Rock Crawler Rear bumper - Badlands 12K winch - Tom Woods DS - KC Slimlites - KC Headlight conversion with 4300K HID - 285/75/16 BFG MT KM2 on Rubicon Wheels
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Unread 09-29-2012, 04:37 AM   #7
relgnarw
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LOL I hear ya on the tools. Yeah, the director of finances can be a little difficult to convince sometimes, but like you said look how much you saved by doing it yourself. It's also a great feeling saying "I did that".
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"I had wobster at Wed Wobster" - Austin age 5

My onboard air build.
[url]http://www.jeepforum.com/forum/f176/viair-install-02-tj-w-cruise-5-spd-1379665/[/url]
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Unread 10-02-2012, 06:09 AM   #8
Jeepson33s
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Everything works...got it all back in and running fine. FYI...Easy Off oven cleaner did the trick. Sprayed it into the intake manifold (take all the sensors off before hand) and let it sit for a few hours then hit it with a power washer and it got it CLEAN. thanks for all the help guys!
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2003 Wrangler Rubicon Intense Blue- 4" Rough Country X-Series lift - Bilstein 5100 Shocks - Currie RockJock V-Bumper and Rock Crawler Rear bumper - Badlands 12K winch - Tom Woods DS - KC Slimlites - KC Headlight conversion with 4300K HID - 285/75/16 BFG MT KM2 on Rubicon Wheels
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