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      10-21-2019, 12:34 PM   #2
MineralF30
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Drives: 09 E92 335i
Join Date: Jan 2019
Location: Tampa, FL

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Quote:
Originally Posted by Fplcman View Post
So I have great news that my 2014 435I with 50K on it now has a blown engine. I lost all compression in cylinder 5 and the leak down test sounds like the air is coming out of the oil cap. So with that knowledge I need help figuring out my options.

I think these are my options:
Drop oil pan and see what happen - possible replace piston.
Find a drop in engine and just replace the whole thing.
Send the engine out to get built.

What do you guys think? Just sucks I am have to do this but I want to do it right. I have all winter to get it working and I have a full shop in the garage. I would just follow the ISTA steps to pull the engine.

I have FBO with the pure stage two turbo and the XDI fuel pump.

Any input would be great.

Thanks
I would replace rod bearings and upgrade pistons. That way you can do preventative maintenance and also have upgraded pistons to hold 800hp for the future if you want more power.
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