E-Bay seller's claim about M30 engine.. True??

[Dave M]

The claim

The engine got it's reputation from being run 4 years straight in a factory accumulating 800,000 miles then it was disassembled and any problem areas addressed.

The Link http://cgi.ebay.ca/RARE-BMW-535i-5sp...QQcmdZViewItem

For entertainment,

Dave M

[misfortune]

The claim

The engine got it's reputation from being run 4 years straight in a factory accumulating 800,000 miles then it was disassembled and any problem areas addressed.

The Link http://cgi.ebay.ca/RARE-BMW-535i-5sp...QQcmdZViewItem

For entertainment,

Dave M

Thats a pretty nice description. Wonder how much is BS

[zygoteer]

I suspect the statistic has been distorted over time.

It says the "engine" was run continuously for 4 years ...
How is this (presumably run on a test bed) related to miles ?
- it doesn't say in a car which would have been far more impressive anyway !

If it was in a car, or cars, then its average speed was only 22.83 mph ... so is that a real test for wear patterns ?
I doubt it.

[Paul in NZ]

the m30 got its reputation by continual improvement over a period of time

[Incantation]

most wear comes from cold starts

[Jay 535i]

If it was in a car, or cars, then its average speed was only 22.83 mph ... so is that a real test for wear patterns ?
I doubt it.

Indeed. Plus, it was presumably run without load, rev changes, G forces or anything at all, really, that would cause anything more than minimal wear.

I doubt the claim, and even if it's true it's meaningless.

[Alexlind123]

I think my average speed is around that, according to the obc.

EDIT: i just read the article. That is a nice car!! I notice that he has a painted valve cover as well

[Jay 535i]

I think my average speed is around that, according to the obc.

Your AVERAGE speed is, perhaps, 23MPH.

But for the engine in question, 23MPH was the ONLY speed!

Big difference.

[Alexlind123]

I see, probably at a constant rpm?

[Jay 535i]

I see, probably at a constant rpm?

Presumably, yeah.