Back in for another major surgery.

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Cthehentz

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Over the past couple weeks I have noticed white smoke at startup and after checking the oil level it was at half (NOT GOOD) so I took it to my local guy and sure enough number 7 valve seal is leaking oil into the cylinder. I did have all the timing and cooling components replaced this past December so instead of pointing fingers we decided split the deal $3k on my end and they handle the rest for a complete valve job. The LR4 ran great, no codes or anything just little smoke at startup. I have about 4500 miles on new timing/cooling components. Oh well, now I am super duper committed now haha....
 

Quijote

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Sorry, I am a bit unclear. You mention a leaking valve seal. Is that leading to a $6k job that you guys are splitting? I assume the valve seal dropped the oil level. When you say "half" you mean 4 quarts out of the 8 were burned via the leak?

My first car, a 1990 MB 190E 2.6 with 140k+ miles got to the point where oil consumption was pretty high (maybe 1/2 quart every 1k miles?) and I did the valve stem seal job myself which improved things dramatically. Different car with a simpler I-6 engine, and not an easy job, but I can't imagine the equivalent being a $6k job on an LR4. Nothing surprises me anymore though.
 

PaulLR3

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Every time I read one of these threads it helps me accept the fact that some day I will need to part ways with my beloved LR4. Maybe at 150K miles I will decide that it has served me well and move on.
 

Cthehentz

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Every time I read one of these threads it helps me accept the fact that some day I will need to part ways with my beloved LR4. Maybe at 150K miles I will decide that it has served me well and move on.

I have spent the better part of my life trading cars out when they needed new tires or recommended maintnance was due so for me to spend money on a big ticket repair twice on the same vehichle is unheard of but the LR4 is perfect. The machine shop said they found several broken valve guides on both heads and two bad seals.
 

djkaosone

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for me to spend money on a big ticket repair twice on the same vehichle is unheard of but the LR4 is perfect.

I was committed to mine within 3 months of purchasing a CPO. It was in the shop constantly. I have lots of new parts and after warranty was up, I shelled out roughly $15k in other new parts including an $8k transmission and $2.5k in parts for diy timing chain. $15k is a lot for "maintenance" to keep her going, $8k was a lot for a damn transmission. Just saying...
 

Cthehentz

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Got the LR4 back this morning and wow, sharp snappy smooth to sum it up. The only thing I can't understand is why both heads had several cracked valve guides and is that common?
 

John Robison

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Cracked valve guides are not common, and for what it's worth, valve guides have nothing to do with timing chains . . . the jobs are independent of each other insofar as one has no effect on the other. It would have saved some time had you known about both, but guide wear is not that common in these. It's a huge issue in BMW V8s of this vintage though
 

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