Reply With Quotethe V8s dont idle perfectly smooth anyways, kinda lopey with a slight vibration off idle to about 2k rpms.Originally Posted by Hal
530iT 150k mi, pure Nikasil Power
First 37k miles by the first owner in Florida with possible high sulfur. Last 113k in CA with that fine low sulfur gas. My blood pressure couldn't tolerate a bad result from a leak down test, so I haven't had one performed. Can't say that the idle is perfectly smooth, but OK for me.
Hal
1994 530iT 150k all Nikasil miles
1999 528iT 88k non-Nikasil miles
Green Beret Special Ops
the V8s dont idle perfectly smooth anyways, kinda lopey with a slight vibration off idle to about 2k rpms.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Mine does. It's amazing. Soon as she warms up I could not even tell the motor was on in the car. And that was with broken motor mounts. Maybe thats why... (thread comming :eek
It does lope a bit off idle up to 2000, then smooths right out again, so that's fairly normal?
Scars are tattoos with better stories.
Major Contributor
Yes, everybody's M60 has a slight rumble at about 2000-rpm...someone once said it was the cams, not sure of that but it's there...on mine it is at 2075rpm or thereabout...
Cheers,
Duey
Big, Big Time Poster
Nikasil has been in my closet since 1998. I have to keep my clean shirts and knickers besides my bed now
I've got a 1995 530i with 110k miles on it. The production date was 4/95, and I have not replaced the block. According to Mike Miller from the BMWCCA, my car already has the Alusil block, and I just made the cutoff date. Here's what he said:
According to BMW, the production date cutoff for the nikasil cylinder bore premature wear defect is 03/95 on automatic transmission cars; 05/95 for manual gearbox cars. So, the answer is, it depends on your production date, which is located on a sticker in the left front door jamb. The nikasil cylinder bore premature wear defect seemed to be rare on the 3.0-liter V8 for some reason.
Major Contributor
Oxford, I hope for your sake that is correct, but that disagrees with everything that I have ever seen about Nikasil. From what I have heard and read, all M60s were Nikasil from the factory. When they began having failures, the factory began replacing the original Nikasil with replacement Nikasil, and equipping the engines with higher temp thermostats. Initially they thought the failures were related to low operating temps, hence the thermostat. After the true nature of issue was discovered, they began replacing with Alusil. I've never heard dates as to when this all occured, but I would think it was after E34 production ceased. Some people have had several blocks, as their replacement Nikasil also went bad. I would encourage you to check the numbers on your block, I would be very curious to know.
Major Contributor
My 540 has a production date of 7/95 and came with a Nikasil block. I know this because I have the receipt for when it was changed to an Alusil block at 30k miles.
1988 M3 - Track rat
1989 325iC
1995 530iM
2000 323iT - UUC BBK, PSS9 Coilovers
2005 GMC HD Crew
smelly 540i
My 540i seems to leak oil from the same place, not much, but stinks as it gets on the exhaust. What did the job entail?
Well, I hope Mike Miller's correct, too, but in any case, where do I find the engine number, and is there a database or something to verify which material it is made of? Also, I have heard from several sources that the 3.0L tended to have less problems regarding the Nikasil block than the 4.0L. What have you 530i owners experienced?
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