|01-31-2008 07:53 PM|
|01-31-2008 08:24 AM|
|01-31-2008 08:23 AM|
|01-30-2008 07:37 PM|
|01-30-2008 06:26 PM|
|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|
|01-30-2008 08:11 AM|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|01-28-2008 04:44 PM|
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