The 4.0 is an AMC. Don't credit ChryCo with that one.

 

Haha, Touche'!

 

I just got the 3.7 V6 in my work truck apart and sent one of the heads off to the machine shop. Looks like an intake valve isn't sealing, it ate spark plug ceramic at one point and the head is warped a bit. Yay.

Gotta pull the other head tonight and bring that over tomorrow.

These motors are a pile of crap.

 

Yeah, I have done my best to forget the fun we had on that project. Thanks for bring that painful memory back to mind. -joking

Dad loves the Liberty, and seems to really enjoy driving it, but it continues to have little onsey twosey issues that I fear will plague this vehicle. Funny thing is, after we got it running, dad went and got permanent plates for it. He didn't look at them when he wast there and when he got home and looked at them the number was FKD #### something. He sent me a picture and said "I hope this isn't an omen of some kind...". So far it seems to be proving accurate. Fan issues, inoperable speedometer and odometer display, bad CV joint in the front drive shaft, hole in the muffler, etc. I told him the other night that it wasn't a Jeep, it was a Chrysler. I think he is getting the point....

 

Silly Chryslers

 

Yeah that certainly looks familiar. Let me know if you need anything for it. I still have the head we took off in the scrap barrel in the shop. At least that one still has all the rockers on it!

 

You wouldn't happen to have a passenger side head for the truck, would you?

 

The one we replaced was the passenger side. I have the old one but it isn't usable unless you just wanted some parts off it for something. The #2 Exhaust valve seat is gone and the head is all chewed up.

 

Crap. I also replaced the passenger side once so my spare passenger side head is trashed too.

The driver side head needed a valve job on 2 valves and it was a bit warped. That one cleaned up fine.

I pulled the passenger side head off and he said that one was a little warped but pressure tested fine. He started milling it and found a 2" crack in the deck that was covered by the gasket for the pressure tester. Bummer. Now I just have to track down another head and then I can re-assemble this pig and then start on the next Ram. Those motors suck!

 

Yeah, these things are junk. No more Chryslers for me. Not until I see something that convinces me that they know how to assemble a vehicle in a way that makes sense.

 

I just got the replacement head delivered today. I will take it to the machine shop tomorrow and have it looked over. The rest of my parts should be here this week and then hopefully I can re-assemble this pig for the 2nd time. I seem to recall that I don't like timing these motors...

 

Yes, it is coming back to me now. You have to align the balance shaft, the crank and all the sprockets at the same time while cramming everything into that timing housing. Yay.

It looks like I even took pictures from last time when I assembled this motor. That was a good idea.

 

Hehehe, yeah timing.... ehhh, it's overrated.

 

 

So.....what was wrong with it? (Just kidding). What a piece of junk design. ChryCo should be ashamed to put their name on something as worthless as that design. The heads are a joke. There is nothing to them. It's all aluminum. Not even the thought of durability went into that design. They did just enough to get by and when one little thing goes wrong, it all comes crashing down like a house of cards.