Quote from: cobracmdr on November 20, 2008, 05:34:37 AM
or go to the local pick a part and get a low mileage 3.1 out of a 93 w body or better yet a 3400 ;) 

Is the 93 motor a drop-in replacement? Is the 3400? If not, what is involved with either? Thanks!

Anyone have a spare engine they want to sell?  :icon_cry:

Quote from: R Dubya on November 12, 2008, 02:44:09 PM
realistically it can be done but there are several major and probably dozens of minor details to deal with.  The oil pan would need to be swapped, the oil pump upgraded, intake and exhaust manifolds changed, I'm not 100% on the heads, mainly top end stuff.   It's not a direct drop in, but it can be done. 

After relaying this info to my mechanic he has decided to pull the heads and see what is going on. Hey, "In for a penny, in for a pound!" I always say! Hmmm..... That may explain why I'm broke! LOL! I'll keep everyone posted on it's progress.

Can the motor be replaced with a standard 3.1 and just transfer the turbo-specific parts, or are there internal differences?

Compression has been verified at 50 on the front 3 cylinders, 100 on the back 3. In response to an earlier post, no oil in the coolant.

The oil was clean when we changed it last week. I'll ask the mechanic about the coolant in the morning but I would think he would have noticed that.

The car never overheated, nor did it burn oil. The car ran quite nicely until it started with the random intermittent stalling. Certainly no signs of head damage. I love the car but I'm not sure I want to sink a ton of money into a rebuild.

The front 3 cylinders were at 50. The back 3 were not checked. An oil change was done as well as new plugs and wires.

Hi! I have a 1990 TGP with only 76k that was, at one time, my daily driver. It started with a random stalling problem that turned into a non-starting problem that no one seemed to be able to cure so I took it off the road for awhile until I had the budget to fix it right. Well, awhile turned into almost 2 years and now the compression is very low. My mechanic replaced the timing chain as it had some slack in it but we still have very low compression. Any suggestions as to what to look at next?