Hey guys, I thought I'd help you out a bit with some pictures of my cam removal. There's alot of questions floating around latly about doing a cam swap so I thought I'd show some of mine.

These first pictures help to dispell the doubt that you must remove the heads to remove the cam because the lifters won't come completly out of the bores with the heads on. I use to think it wasn't possible myself until Sven told me otherwise. I used steel tie wire used for safety tie wiring bolt heads. I think its .035 stainless steel wire. Its available at any good parts house, not autozone.

Lifters held by wire (http://www.0performance.com/camswap/swap1.jpg)

Lifters held by wire, close up shot (http://www.0performance.com/camswap/swap2.jpg)

This next picture shows the timing chain and tensioner. There are two 10mm headed bolts that hold it on. Also, note the CLEAN shop rag stuffed in the front of the oil pan to help prevent any debree from getting in the oil pan and it also helps catch those two 10m bolts if they happen to fall. Also, you may wanna go ahead and line the engine up on TDC before you remove the chain, on the 4.0 TDC is the keyway straight up on the crank. The torx head bolt on the cam gear is a Torx T55.

**Be careful, when you remove these two bolts the tensioner will spring apart. There will be a long spring inside the tensior along with a small metal peice that rides behind the plastic arm**

Camshaft tensioner and chain (http://www.0performance.com/camswap/swap3.jpg)

After you get the timing chain and gear off you will see a plate holding the cam in place with two torx head bolts T30's. Remove these two bolts and slide the plate downward and out.


Camshaft holding plate (http://www.0performance.com/camswap/swap4.jpg)

When you have that out goto the rear of the engine and remove the oil pump drive. On a later 4.0 with a cam posistion sensor this will be located on top of this. It is held in by one 13mm headed bolt and slides straight up. It may take a small screw driver to pop it loose, nothing major though. This must be removed beofre you attempt to pull the cam.

Oil pump drive (http://www.0performance.com/camswap/swap5.jpg)

Finally the cam removal. You must remove the radiator and I'm not sure but you MAY be able to slide the a/c condensor up enough to get the cam out. As you can see by this picture it comes all the way out past the core support, so the a/c condensor must be moved a bit. I don't have a/c so its not a problem with mine.

Camshaft Coming out (http://www.0performance.com/camswap/swap6.jpg)

I hope I've helped a little to show you whats involved in removing the cam from a OHV 4.0. I didn't go over stuff like timing cover removal or lower intake but if you gonna swap the cam you should know that you'll have to remove those as well. don't have my new cam yet so I'm kinda stuck for this weekend as for reassembly but I think the wife would be upset if I did try to do it on Mother's day anyways ;).

Let me know if you have any questions, later Doug904.

very schwweet

Great info Doug thanks.:thumbsup: Hey BTW if you want I could take that cam off your hands for ya.(I'd pay for it of course);)

That's a great job Doug. We should make stuff like that a tech article somewhere. Maybe at least put it in that little tech section we have on the main board?

Nice write Doug. We should have more articles like that.

You da Man Doug... You posted that thing just in time for me... I've got everything removed down to where you're article begins. Now, instead of guessing, I'll at least have a little backround to help me out. Thanks!

-Ty

Great write-up Doug - I don't even have that kind of 4.0L and I thought it was interesting and well written and helpful for other cam swaps in other engines too.
When you put the new one in you should write that up too - would make a very complete and thorough cam shaft change article.
Nice work.

This will definatly be made into a tech article, you can be sure of that.

Nice article :) Maybe we wont have so many "How do I install a cam on my [insert model year here] 4.0?" posts now.

Damn Doug,, do you do this stuff for fun cuz it seems like you're always pulling your motor apart :). Great job on the pictures and the write up, it's going to come in handy really soon. When will you have the new cam and are you going with the 410 or 422 cam (I can't remember).