N55 Valve lash inspection?

2013F10 · 03-09-2020, 10:37 AM

Does the N55 engine require periodic valve adjustments? Asking about a F10 535ix with N55 engine. If so, how often and how much do independent ships charge? Any DIY's?

ziekxq · 03-09-2020, 11:42 AM

Quote:

Originally Posted by 2013F10

Does the N55 engine require periodic valve adjustments? Asking about a F10 535ix with N55 engine. If so, how often and how much do independent ships charge? Any DIY's?

Never done this and I am on 115k now.

95blkmax · 03-09-2020, 03:50 PM

I thought valve lash adjustment was only for flat tappet lifters (such as those in the S50 engine from the 90s). Nxx engines I believe all have hydraulic lifters so no adjustment is necessary

2013F10 · 03-10-2020, 07:23 PM

Awesome, that's what I was hoping to hear just haven't had time to look into it.

95blkmax · 03-11-2020, 08:07 AM

Quote:

Originally Posted by 2013F10

Awesome, that's what I was hoping to hear just haven't had time to look into it.

I mean as long as you don't hear valve tapping (the early signs of a hydraulic lifter on its way out) you're good. What typically kills them is crappy oil/ taking too long to change the oil. Rarely do they go bad from mechanical failure on these engines.

03-09-2020, 10:37 AM	#1
2013F10 Private First Class 59 Rep 175 Posts Drives: 2013 BMW 535xi Join Date: Jul 2017 Location: Denver, CO. iTrader: (1)	N55 Valve lash inspection? Does the N55 engine require periodic valve adjustments? Asking about a F10 535ix with N55 engine. If so, how often and how much do independent ships charge? Any DIY's?
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03-09-2020, 03:50 PM	#3
95blkmax Captain 213 Rep 657 Posts Drives: '11 535 M-Sport Join Date: Nov 2019 Location: Oklahoma City iTrader: (0)	I thought valve lash adjustment was only for flat tappet lifters (such as those in the S50 engine from the 90s). Nxx engines I believe all have hydraulic lifters so no adjustment is necessary __________________ I'm on the YouTubez now!! Check it out -> https://www.youtube.com/@turbospool 11' M-sport- 371WHP - 478WTQ on stock PWG E50 TunedbyShoup // 386WHP - 429WTQ on Shuenk N55+ with ultra-conservative 91 Octane tune // Starting full-range flexfuel tuning in Spring '24
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03-10-2020, 07:23 PM	#4
2013F10 Private First Class 59 Rep 175 Posts Drives: 2013 BMW 535xi Join Date: Jul 2017 Location: Denver, CO. iTrader: (1)	Awesome, that's what I was hoping to hear just haven't had time to look into it.
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