Ok guys, i'm in the middle of trying to change out these lines, how tight is that oil filter adapter? I can't budge this one, hope its regular threads and not left hand for some silly reason. Next question is how do the lines come off the block? I don't see how it comes apart without the whole line turning and there just isn't room in there for that?

There is a spring clip that holds the lines in place. You just pop out the spring clip and the lines pull straight out. It is kinda a scary system if you ask me. I don't remember anything in particular about the oil filter adapter though. Had it off, but don't remember if there was anything to it.

Hmmm......kinda tough to work under there, i want to take off the filter adapter to have more room to work but it won't budge, have to go look at the lines again now.

Yup, they are a PITA!

Keep us updated CR. I'm looking to do this to my truck next.

Sure Bow, i'll have a couple of greasy pics too.

I just changed my crossover and noticed that my filter adaptor was leaking ... would have been easy while the crossover was off, I tried to get the O rings for it but no one had them, BTW where do you get the O rings for replacement?? Part number ??

Speaking of oil cooler lines. I had to change out my lines on my '91 Chebby 4x4 V-8 gasser last year. Those clips are about as Mickey Mouse as it comes, I made sure I got new ones with the new lines.

One more thing, check you lines guys for rubbing. The reason I replaced mine was due to after both +186,000 miles and 13 years old, the 2 lines had rubbed together at the metal part ( not the rubber hose in the middle) enough to wear a small hole in one of the lines. Only about the size of a pin needle, but enough to have to stop every 8 minutes and add 1 quart of engine oil to get home. -:t Didn't matter how many miles travelled or what speed, 30psi pumps so much out of the engine and every 8 minutes of run time equaled 1 quart.

Good Luck CR
-391

Some pics.
#1 - Cooler lines, O-rings were extra purchase (dealer) for filter adapter housing.
#2 - Old lines with 2 clamps on each, still leaked.
#3 - Silly clips, thats all the holds the lines to the block.
#4 - Lines on the block, the space between the line and the nut/fitting on the block is where the clip is, burried in the grime but its there, a small scewdriver or similiar will rip it out and then the line will just pull out. The fitting itself required a 1 1/4" wrench/socket to remove from the block. You need to remove the oil filter adapter to install the new fittings so remove it first!
#5 - Lines installed on the block.
#6 - Lines installed on the oil cooler.
#7 - Wife having fun with the camera. (me not having fun)

The oil filter adapter housing is a real PITA to get the nut on the bottom broke loose, 1 1/2" head on the bolt, 1/2" drive socket, breaker bar and a 2' snipe to break it loose. Once the lines are undone comes the fun part, getting them outta there, all i can say to that is its a good thing they're aluminium.

While the filter adapter is off put in new O-rings, mine had 3 if you include the top ring seal for the block, the O-ring on the through bolt was toast and just crumbled when removing it (5 years old).

I just changed my crossover and noticed that my filter adaptor was leaking ... would have been easy while the crossover was off, I tried to get the O rings for it but no one had them, BTW where do you get the O rings for replacement?? Part number ??

The O ring is available from the dealer. I just moved mine on to my new engine.

The O ring is available from the dealer. I just moved mine on to my new engine.

Thank You