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Topic Review (Newest First)
01-31-2008 07:53 PM
4.0l sahara
Quote:
Originally Posted by TXST8tj View Post
gotcha...i just didn't know if there was something i should do while it was all pulled apart to get the bad stuff out....before i drive it again. but you're saying the leftovers of what's in there now shouldn't be an issue, and it will get flushed out after a couple oil changes.
wipe out what you can.
01-31-2008 08:24 AM
TXST8tj
Quote:
Originally Posted by Triple88a View Post
Did you accidentally put mud in there instead of oil?
haha. it certainly looks just about that bad.
01-31-2008 08:23 AM
TXST8tj
Quote:
Originally Posted by 4.0l sahara View Post
I told you how. Right above your post.
gotcha...i just didn't know if there was something i should do while it was all pulled apart to get the bad stuff out....before i drive it again. but you're saying the leftovers of what's in there now shouldn't be an issue, and it will get flushed out after a couple oil changes.
01-30-2008 07:37 PM
Triple88a
Quote:
Originally Posted by TXST8tj View Post
don't think it's supposed to look like this.....
Did you accidentally put mud in there instead of oil?
01-30-2008 06:26 PM
4.0l sahara
Quote:
Originally Posted by TXST8tj View Post
what is the best way to flush the old stuff (oil/sludge) out? will i need to drop the oil pan and clean it out also? will i still need to replace the oil pump?
I told you how. Right above your post.
01-30-2008 02:23 PM
TXST8tj what is the best way to flush the old stuff (oil/sludge) out? will i need to drop the oil pan and clean it out also? will i still need to replace the oil pump?
01-30-2008 12:01 PM
4.0l sahara Just change the oil a few times when your done. So the first few times use really cheap oil/filter. Fill with oil drive for a few days change. I would do that on or two times then put good oil in it. If you leave any in there it will kill the cam first then the rod/main bearings and cylinders and more.
01-30-2008 08:19 AM
MOz Yup... that's the expresso latte I was referring to.
01-30-2008 08:17 AM
TXST8tj
Quote:
Originally Posted by erickpl View Post
And it'll hold ya over until you put in that V8 or 4.0.
yes sir. i think that, plus replacing the exhaust manifold while it's pulled off anyway, and swapping in the new o2 sensor will wake this thing up a bit.
01-30-2008 08:11 AM
TXST8tj i got working on it yesterday evening. got as much done before the sun went down. i didn't feel like pulling the lights out to continue working, and dinner was ready, so i will work some more this evening.

don't think it's supposed to look like this.....


01-30-2008 08:11 AM
erickpl And it'll hold ya over until you put in that V8 or 4.0.
01-30-2008 08:06 AM
TXST8tj yeah, i just thought i'd ask. like i said, while i am in there...

once this thing is cleaned and sealed up it will probably drive better than it has since i've owned it, so that should be good enough.
01-29-2008 11:16 PM
Triple88a
Quote:
Originally Posted by TXST8tj View Post
this may sound dumb being the 2.5L 4cyl, but are there any performance mods i can do with this engine while i have some things pulled apart?
IRTBs

Might as well clean the ports so they are nice and clean but actually porting stuff w/ a dremmel tool can be quite tricky especially when there is no info on it.
01-29-2008 02:49 PM
4.0l sahara Just use a good torque wrench. Also wouldn't hurt to get new head bolts. I don't think a 2.5 is torque to yeild on the head bolts. So you shouldn't need a degree wheel. If it is torque to yeild you need new bolts.
01-29-2008 12:43 PM
MOz I suppose you could port match the exhaust and intake ports if you really felt ambitious.

(I'm only kidding...waste of $$$)
01-29-2008 12:14 PM
erickpl heheh you're kidding right?

Some say throttle body spacer, Jet chip, or CAI. Some mention a different camshaft.

You won't get much out of it either way.
01-29-2008 09:33 AM
TXST8tj this may sound dumb being the 2.5L 4cyl, but are there any performance mods i can do with this engine while i have some things pulled apart?
01-29-2008 08:31 AM
TXST8tj great help guys! i appreciate it. btw, it's the 2.5L 4cyl. will start tearing into it after work this evening.

good things...i have the FSM for my jeep and i have a healthy supply of tools.

i will have it magnafluxed (as soon as i figure out somewhere to take it). i'll look into having the seals replaced too. i only want to do this once, so if there is a part to have machined, cleaned, gasket or seal to be replaced....i want to do it now.
01-29-2008 06:25 AM
MOz
Quote:
Originally Posted by TXST8tj View Post
i hope i'm wrong, but i don't think i will need to pull the engine....??
No...you don't need to pull the motor and it does not have an overhead cam. It does have an overhead rocker shaft assembly but that's not a big deal to remove. Just make sure you replace it the way you took it off and torque it properly.

Good excuse to buy that new 1/2" torque wrench you had you eye on at Sears.

Let us know how it goes and ask if you have questions. Your feedback is important for future readers on this topic....
01-29-2008 06:10 AM
MOz Trip...need to add positive value here if you're "not sure" on what to do...

It's an inline 6, it's the simplest job around... read the manual and you will have your answers. Posing hypothetical questions is one thing, but this is not your Miata so beyond the 4 wheels nothing is the same.
01-29-2008 05:19 AM
JCS05Rubi jeep is not an overhead cam engine, its an old school pushrod inline 6 (as far as I am aware). The camshaft and the crankshaft are both in the block, as far as I know. I have never had one apart, but since the motor is from the 70s, I always assumed it that way..
01-28-2008 11:45 PM
350chevrolet it took me about 30 min extra to time my M50 bmw dohc motor after i put S52 cams in it and it was a chain. setting timing is hard if you dont have the proper tools but if you have them its easy. but like i said, i dont think you need to mess with the timing on a jeep engine while removing the head because i dont think it is an ohc motor. if its not an ohc then when you take the head off you just remove the pushrods and keep them in the order they came out, the same thing that you do on v8 and other non ohc motors. BUT, i will agree with you, if you need to adjust the timing you will need to remove more than the head. a jeep is nothing like a miata tho.
01-28-2008 11:35 PM
Triple88a
Quote:
Originally Posted by 350chevrolet View Post
just re-time it.
That would make the job harder.. you will have to undo lots of more things in the front wouldn't you?

As my experience for that goes...My miata was DOHC and to correct the timing on that you'd have to remove the crank pulley and the belts... few more covers, the fans, the valve cover, few more hoses and wires... long story short, pain in the butt.
01-28-2008 11:03 PM
350chevrolet tj's use a chain, not a belt and if im thinking rite you dont have to touch the chain because a jeep engine is not an ohc motor. if the timing gets messed up some how, big deal. just re-time it.
01-28-2008 10:42 PM
Triple88a JCS05Rub wouldn't the timing get messed up? I've never done head work on a tj, thats why i'm curious.
01-28-2008 09:56 PM
JCS05Rubi ya, in a suby maybe, but there is no need to pull the engine for a head gasket replacement.

its actually pretty simple, just a bunch of nuts and bolts, and putting everything back. All good suggestions so far. definatly have it magnafluxed for cracks, since your having issues. not a bad idea to have it cleaned and the valve seals replaced while its out. get a manual, get a standard socket set, a breaker bar, your favorite hammer, and rent a torque wrench.
01-28-2008 07:27 PM
Triple88a lol In a subary dont you have to take the engine almost apart to change spark plugs?
01-28-2008 06:15 PM
Smeghead Oh well thats true this isnt a stupid horizontally opposed japanese wierd thing like my suby was is it? LOL
My bad im still thinking in Subaru mode
01-28-2008 04:48 PM
skeeter
Quote:
Originally Posted by Smeghead View Post
I had it done on my Suby just b4 i sold it

Gotta pull the engine so why not do the timing belt and clutch disk too
Why on earth would you need to pull the engine for a head gasket?
01-28-2008 04:44 PM
TXST8tj
Quote:
Originally Posted by Smeghead View Post
Gotta pull the engine so why not do the timing belt and clutch disk too
i hope i'm wrong, but i don't think i will need to pull the engine....??
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