New project: 2002 X5 4.6is

[andrewwynn]

You don't need the timing disc set for compression test you'll only be turning the crank by hand. You do need to have the cam shafts all roughly timed so you don't have valve/piston interference. You probably want the vanos set to baseline (full counter clockwise as viewed from front if memory serves). You can turn with a pointy enough needle nose, or a couple 3mm drill bits into the pin holes and a lever between them.

[Gregsgroup]

Finally pulled the heads and found number 3 cylinder deeply scored. The motor does spin freely and smoothly but has 0 compression in that cylinder. Given the state of the block, its not usable as is. I was planning on having the heads redone yet now the question now is, what to do?

So a few thoughts for discussion;

-anyone have a running 4.6is engine for sale? The ones on eBay at $2-$3k plus and that’s a non starter for a 150k motor that I can’t start up front and that I’m going to redo chains and refreshen throughout.
-how different is the block from a 4.4? I could use a good 4.4 block and swap the other parts like the crank, pistons and heads.
-any idea the cost of sleeving the cylinder block and is that even possible?
-anything else to try?

I know I could part it out for more and purchase another yet where’s the fun in that. Something about building it with your own hands....

[Purplefade]

Hey Greg, sorry to hear about the scoring in 3, with regard to using a 4.4 I believe it is a totally different animal, but to your question of sleeving, that is totally possible, as one option VAC Motorsports comes to mind. I have no idea of the cost but they’ve always been good to me when I talked with them in the past:

http://www.vacmotorsports.com/news/a...483338393.html

[EODguy]

Try the guys at AMS Performance at Padmore street WorcesterWR1 2PA. They might be able to help you out.


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[syncrocrick]

There are a couple of 4.6is for sale on copart.com - maybe you can get an engine there. One has only 86000 miles on it.