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  #1  
Old 03-16-2019, 05:52 PM
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New project: 2002 X5 4.6is

Hello, today I purchased a 2002 X5 4.6is project. Always loved these trucks. Itís Silver/Black with new tires all around. It was partially taken apart to fix the chains but never finished. Itís sat for a few years and we know things like bushings and fuel pumps donít like to be idle. Whatís unknown is if the valve train made contact. It currently partially disassembled with the the timing chain removed and the guides toasted. At the price point and with the condition of the body, itís too nice to part out. Should be fun..(famous last words)

The immediate plan is to pull the heads and see what Iíve got. Fingers crossed yet little hope. Fortunately Iím no stranger to BMWís as I have a 2001 740i Sport and just coming off a completed motor swap on a 1994 840ci.

Greetings...
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Old 03-16-2019, 10:41 PM
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New project: 2002 X5 4.6is

Good looking truck! Nice find, Iím super jealous



Iíve been dying to snag myself a 4.8is project truck but with three kids, one driving and the other two driving in May (twins)... Iíve got enough of a project (for the moment) with my current X.

I love the things, been toying with the idea of selling my 05 and looking for a good low miles 5.0i to drive but I think Iíd be further ahead with the project 4.8is...based on all the issues the 5.0i have...


2005 X5 4.4i (04/05 build date)
Titanium Silver w/Black Interior
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  #3  
Old 03-17-2019, 08:56 AM
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Goodluck! I love TiSi color on these E53 iS' vehicles
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BMW X5 4.6iS Registry
BMW X5 4.8iS Registry

2009 BMW M3 E90
2006 E53 X5 4.8iS - SOLD
2002 E46 M3 Convertible - SOLD
2006 E46 M3 ZCP - SOLD
2000 E39 ///M5 - SOLD
2003 E53 X5 4.6iS - SOLD
2006 E83 X3 3.0i MSport - SOLD
2000 E46 323Ci - SOLD
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Old 03-18-2019, 09:21 PM
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Glad you are bringing it back to life. Keep us posted with the progress.
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2002 4.6is
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Old 03-20-2019, 05:52 PM
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I looked at the motor and I got some decisions to make.

-do I put a chain on it and try to time it to do a compression check? This would delay my need to pull the heads immediately?

-just pull the motor and rebuild it from the crank bearings up? If I do this Iíll know what I have as I have other vehicles to DD.

-source a replacement 4.6is running used engine? I like this option yet pricing on these is high for the examples listed on eBay and since the are already removed, I could be exactly in the same boat I am now.

Thoughts?
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Old 03-20-2019, 06:29 PM
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Quote:
Originally Posted by Gregsgroup View Post
I looked at the motor and I got some decisions to make.

-do I put a chain on it and try to time it to do a compression check? This would delay my need to pull the heads immediately?

-just pull the motor and rebuild it from the crank bearings up? If I do this Iíll know what I have as I have other vehicles to DD.

-source a replacement 4.6is running used engine? I like this option yet pricing on these is high for the examples listed on eBay and since the are already removed, I could be exactly in the same boat I am now.

Thoughts?
I think you should keep the current engine and rebuild it. Who knows with the way old M cars and old SUVs in general becoming collectable the 4.6is with a rebuilt original engine may be worth something someday. Plus you will know everything about the engine and what has been done. Good luck!
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2002 4.6is
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Old 03-20-2019, 08:15 PM
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Quote:
Originally Posted by Gregsgroup View Post
...just coming off a completed motor swap on a 1994 840ci.



Greetings...
What engine did you swap into the "4 short" e31?

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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Old 03-20-2019, 09:26 PM
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4 short, classic! I found a very low mileage M60 out of a 95 540, direct replacement. My 840 blew the aux water pump and dumped the coolant. By the time I could pull over, it overheated and wrapped the block. Fun times.
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Old 03-20-2019, 09:46 PM
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Do a quick set of timing and compression test on the cylinders. If they hold air, continue where left off on the chain guides


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Old 03-22-2019, 09:44 AM
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Just ordered a new lower chain, timing cover and tensioner to follow that exact advice. Iíll set it up and run a compression test. One question I have is that the drivers side Vanos timing disc is loose. For the purpose of compression test, do I need to set that? Hopefully not at this point as Iíll have to order Vanos specific tools.
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