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Rockridge 4WD IS Taking Zone Offroad Suspension Lift Kits BLACK FRIDAY SPECIALS!! You asked, we deliver!Rough Country Lift Kits and Parts!

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Unread 08-27-2008, 05:00 PM   #1
ineffablelove
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How hard is it to replace lifters?

I have done a lot of work on jeeps, lifters never being a part of it. I am removing my head tonight (all the other stuff is already off and getting either replaced or a good washing). How are they removed and is it difficult? Any help is appreciated. It is a 4.0 H.O.

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Unread 08-27-2008, 05:09 PM   #2
xjguy98
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It's pretty involved seeing as how you have to remove the head but you're doing that anyway. As far as I know, once the head is off, the lifters should just pull right out. The hardest part is all the work in removing the head.
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Unread 08-27-2008, 05:17 PM   #3
ineffablelove
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that is the best news I have heard today. Does it require a specialized tool for pulling them? Thanks.
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Unread 08-27-2008, 05:20 PM   #4
1990JEEPXJ
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from my understanding they are just resting in there and its the rockers and valve springs that hold them down tightly
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Unread 08-27-2008, 05:23 PM   #5
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Sweet Nectar. thanks guys.
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Unread 08-27-2008, 05:25 PM   #6
kadetklapp
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Let me know how it goes. I'm probably facing an upper rebuild by winter. Lots of lifter chatter.
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Unread 08-27-2008, 09:22 PM   #7
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I have never rebuilt a 4.0, but once you remove the head, the lifters should just pull out. you may be able to use some needle nose pliers to pull them. just be sure to use some prelube on the new ones.
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Unread 08-27-2008, 09:24 PM   #8
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I put a 4.0 head on a 258 which is about the same as a 4.0. The lifters are hollow tubes with rounded ends and they just sit there loose in their slots. You can pick them up with no pulling involved. When you put them back be sure they are sitting in the little cup down in the block. I have no idea what the correct term for it is.
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Unread 08-27-2008, 09:37 PM   #9
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Quote:
Originally Posted by foggybottombob View Post
I put a 4.0 head on a 258 which is about the same as a 4.0. The lifters are hollow tubes with rounded ends and they just sit there loose in their slots. You can pick them up with no pulling involved. When you put them back be sure they are sitting in the little cup down in the block. I have no idea what the correct term for it is.
I think you are talking about the pushrods. the cups you mentioned, is what he's replacing. they are down inside the block. http://www.autozone.com/R,941751/veh...ductDetail.htm this is them.
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Unread 08-27-2008, 09:55 PM   #10
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you are right and I am ignorant. Thanks for the correction.
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Unread 08-28-2008, 04:46 PM   #11
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What was the reason for pulling the head and why do you have to change the lifters.

On high milage engines a varnish can coat the bottom of the lifter that doesn't slide up in to the lifter bore. It's a tight fit and you may need to work the lifter up and down to scrape the varnish off before it will pull through. There use to be a tool for that. Kind of a mini slide hammer with fingers that would grip the inside snap ring of the lifter. If the cam lobe got wiped out it will have mushroomed the bottom of the lifter and it will never slide out. Only way to remove it is to remove the cam and poke it through but you would need to replace the cam anyway.
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Unread 08-30-2008, 11:39 AM   #12
ineffablelove
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I decided to not change them. I was thinking about it because the head was coming off anyway and they have never been changed out. My jeep has 230k so I firgured "why not?" I talked myself out of it because the $50 or so would be better spent getting her smogged. The reason for taking the head off was an assumed leak (which was confirmed, #5 cylinder). I had already removed the intake and exhaust manifolds (Intake needed a good cleaning and exhaust had a righteous crack all the way around the flange) so I figured I'd go the further step to confirm my suspicions. Good thing I did! Thank you for all the info, I know the day is coming where I will have to suck it up and do it all over again.
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Unread 11-24-2012, 03:33 PM   #13
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First Time Fix

So i just noticed that i also need to replace my lifter. Its a cheap part but i'd also like to know what all i should replace since im taking the header off? it doesnt look like the gasket has ever been replaced so what all should i replace/clean while replacing my lifter? and roughly how long of a job is this? im up in minot ND and shops are charging well over 100$/hr which is dumb!!
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Unread 11-24-2012, 06:25 PM   #14
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Quote:
Originally Posted by jloerke View Post
So i just noticed that i also need to replace my lifter. Its a cheap part but i'd also like to know what all i should replace since im taking the header off? it doesnt look like the gasket has ever been replaced so what all should i replace/clean while replacing my lifter? and roughly how long of a job is this? im up in minot ND and shops are charging well over 100$/hr which is dumb!!
The answer to your question depends on some factors you have not told us about:
1. how many miles on the engine?
2. how well was it maintained to date? Is it full of sludge, or clean as new inside?
3. WHY are you replacing a single lifter, or do you intend to replace ALL of them? Again, WHY?
4. What does the cooling system look like? Again, well maintained, or full of corrosion?
5. Has the engine ever overheated, even SLIGHTLY? What temps does it run in warm weather?
6. Does the engine loose ANY coolant through mysterious means on a regular basis?

Give us some answers to the above questions, and I can offer some comprehensive suggestions for what would be appropriate for that vehicle.
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Unread 11-25-2012, 02:04 AM   #15
RagBag
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why not buy a repair manual? It will answer alot of questions. It might not be worth messing with the top end of a tired motor.
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