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Old 09-21-2015, 03:49 PM
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Old 02-16-2014, 03:32 PM
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Anyone know where I can find the 0331-0630 adapter plate?
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Old 02-16-2014, 05:34 PM
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Originally Posted by XJwonders
Anyone know where I can find the 0331-0630 adapter plate?
you don't need one. I run a 7120 head and don't use an adaptor with no leaks. The 7120 has even bigger ports than the 0630.
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Old 02-16-2014, 06:11 PM
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So, new head, headers, new valves. Pulled the plugs today because my MPG is has been really bad the last few tanks. Was around 15ish now 12.5 to 13 mpg. The reworked head has about 900 to 1000 miles on it.

What is up with 3? 4 had a little black but nothing like 3. I replaced the E3s with some Champions today also.

So, what is causing this?

BTW, the 4.0 runs fine. No hesitation or rough idle.
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Old 02-16-2014, 06:41 PM
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Originally Posted by bhennessee1
you don't need one. I run a 7120 head and don't use an adaptor with no leaks. The 7120 has even bigger ports than the 0630.
I got a cracked 0331 and I just happen to have a spare 0630 in my garage.
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Old 02-16-2014, 06:44 PM
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Originally Posted by XJwonders
I got a cracked 0331 and I just happen to have a spare 0630 in my garage.
i understand that, I'm saying you don't need an adaptor.
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Old 02-16-2014, 06:51 PM
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Originally Posted by XJwonders
I got a cracked 0331 and I just happen to have a spare 0630 in my garage.
I'm doing a new head work myself. What's the best head to put back on my 95 XJ?
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Old 02-16-2014, 07:09 PM
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Originally Posted by LawDog9
I'm doing a new head work myself. What's the best head to put back on my 95 XJ?
a 7120 lol
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Old 02-16-2014, 07:18 PM
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Originally Posted by Houston Kid
So, new head, headers, new valves. Pulled the plugs today because my MPG is has been really bad the last few tanks. Was around 15ish now 12.5 to 13 mpg. The reworked head has about 900 to 1000 miles on it.

What is up with 3? 4 had a little black but nothing like 3. I replaced the E3s with some Champions today also.

So, what is causing this?

BTW, the 4.0 runs fine. No hesitation or rough idle.
Check the replacement plugs after 1000 miles and report back.
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Old 02-16-2014, 07:19 PM
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Originally Posted by joaopaulo
hello...Vag.com diagnostic woarks on jeep cherokee? i whant to check my injection pump diesel and i know this software does that but im not sure if will woark there . I know there are other diagnostic tools to jeep cherokee but my intencion is just check the injection pump valors and i think others diagnostic tools doesnt woark on that ..thankx
Hopefully someone from Europe will chime in. We never had your particular engine in the USA.
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Old 02-16-2014, 07:22 PM
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Originally Posted by joaopaulo
thankx for your attencion ....i wish i could seeing you wrriting portuguese
Excellent response!! The funny thing is that I suspect most folks on here thought your post was by an American with poor English skills.
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Old 02-16-2014, 07:35 PM
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Originally Posted by XJwonders
a 7120 lol
Why?
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Old 02-16-2014, 07:42 PM
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Originally Posted by LawDog9
Why?
Most direct fit. But u can also do a 0630 head but cruiser mentioned somewhere that dowels are drilled In a different position or something
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Old 02-16-2014, 07:52 PM
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Originally Posted by XJwonders
Most direct fit. But u can also do a 0630 head but cruiser mentioned somewhere that dowels are drilled In a different position or something
Ok cool. So I can't upgrade to a better one then?
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Old 02-16-2014, 07:58 PM
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Originally Posted by cruiser54

Hopefully someone from Europe will chime in. We never had your particular engine in the USA.
Our friend here is in South America, just for future reference.

Originally Posted by cruiser54

Excellent response!! The funny thing is that I suspect most folks on here thought your post was by an American with poor English skills.
Sadly, his posts are more easily understood than some of the Americans'.
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Old 02-16-2014, 08:12 PM
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Originally Posted by LawDog9
Ok cool. So I can't upgrade to a better one then?
7120 and 0630 is pretty good. I don't really get what u are saying? I mean it's only options u have

Both of them are still high outputs
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