Ok I have a 4.7L in my 2003 durango. We had it rebuilt at a local shop back arround christmas last year. The engine ran great for a couple of months but now the thing cant stay out of the shop. We keep having to take it back because the lifters are losing pressure and causing the rocker arm to be kicked off. The guys at the shop are beating there heads. They have replace the lifters 3 or 4 times now. Everytime they reprime them and reinstall them. Just really need some answers.

 

There is nothing special as long as they are following specs. My guess is they are not. Instead they are following what they think they already know. That isn't good enough.

If they put their noses in the manuals, it could have been done right the first time, with the lashings, etc.

My advise: Find a new shop.

---------
To begin with:

NOTE: Disconnect the battery negative cable to prevent accidental starter engagement.

Remove the cylinder head cover (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER - REMOVAL)
For rocker arm removal on cylinders 3 and 5, rotate the crankshaft until cylinder #1 is at TDC exhaust stroke.
For rocker arm removal on cylinders 2 and 8, rotate the crankshaft until cylinder #1 is at TDC compression stroke.
For rocker arm removal on cylinders 4 and 6, rotate the crankshaft until cylinder #3 is at TDC compression stroke.
For rocker arm removal on cylinders 1 and 7, rotate the crankshaft until cylinder #2 is at TDC compression stroke.
Using special tool 8516 Rocker Arm Remover, press downward on the valve spring and remove the rocker arm (Fig. 49)

INSTALLATION CAUTION: Make sure the rocker arms are installed with the concave pocket over the lash adjusters. Failure to do so may cause severe damage to the rocker arms and/or lash adjusters. NOTE: Coat the rocker arms with clean engine oil prior to installation.
---------

IndyDurango

 

+1

There is a SPECIFIC way to set them as Indy has shown. They need to look at the factory manual as the info is in there on how to set them up right as Indy posts.

 

so just a little update. we are now having to take this shop to small claims to get our money back. they never really rebuild my engine fully. they only resized two of my rods and guess what that is the same side that the lifters keep losing pressure. they where wanting to put a new head on and charge me for it.

 

Wow. Figures. Amazing how these scammers work.

In my state we can put a lien on the business's assets, and it WORKS.

Been there, done that. Good luck buddy.

 

What ********!

All you need is 51% of the case. It's not like criminal court (without a doubt).


Good luck!