Dumb Question Thread - No Flaming Allowed

[zzyzx85]

Harmonic balancer or vibration damper?

I guess it's a vibration damper because that's what BMW calls it. I've always thought the dual mass flywheel was the more effective harmonic balancer in the system.

[L0okitzRaj]

crank hub doubles as a harmonic balancer. I would start looking to get that replaced.

damn. thats what i was scared of.

thanks for the input.

[IamFODI]

crank hub doubles as a harmonic balancer.

Harmonic balancer or vibration damper?

[Slideways]

Thank you, yep for installation. Found a nice YouTube short demonstrating install for anyone interested
https://youtube.com/shorts/8JBrwvAL8...pp7Xhms9cXSgqO

I remember seeing the procedure done somewhere. Turns out it was Sreten's video of the valve seal on an X5 - skip to 24min

[zzyzx85]

Yall think this is an issue… missing bits on the crank hub.

the orange is where the rubberized coating has come off.

crank hub doubles as a harmonic balancer. I would start looking to get that replaced.

[sbay]

Yes, my guess is they cover the valve keeper locking portion of the valve stem, so the seal can slide over without getting caught or damaged.

Thank you, yep for installation. Found a nice YouTube short demonstrating install for anyone interested

https://youtube.com/shorts/8JBrwvAL8C0?si=PSpp7Xhms9cXSgqO

[Slideways]

Anyone know what the red tubes are used for that come with the valve stem seal kit...I'm guessing they're used for installation?
For reference: https://www.bimmerworld.com/Engine/G...349064457.html

Yes, my guess is they cover the valve keeper locking portion of the valve stem, so the seal can slide over without getting caught or damaged.

[sbay]

Anyone know what the red tubes are used for that come with the valve stem seal kit...I'm guessing they're used for installation?
For reference: https://www.bimmerworld.com/Engine/G...349064457.html

[L0okitzRaj]

Yall think this is an issue… missing bits on the crank hub.

the orange is where the rubberized coating has come off.

[bavarian3]

What would be the going price for a solid 8.5/10 Mtextur interior (F2AT)?

3-5k depending on location

[Slideways]

Holy $$ tires have gone up...

If you can buy in advance, wait for the DTD yearly sale.

[PSUEng]

Holy $$ tires have gone up...

[AWE46M3]

I was curious and did some investigation about load ratings

https://www.tirerack.com/upgrade-garage/what-is-load-index?gclid=Cj0KCQiAvP-6BhDyARIsAJ3uv7Y6nx6UCU2AlODqoMjF-9lhTivJjhsIFQZOIC9GmqX8tW-Uu_cT5tcaAsOFEALw_wcB&ef_id=Cj0KCQiAvP-6BhDyARIsAJ3uv7Y6nx6UCU2AlODqoMjF-9lhTivJjhsIFQZOIC9GmqX8tW-Uu_cT5tcaAsOFEALw_wcB:G:s&s_kwcid=AL!3756!3!354820 920365!e!!g!!tire%20load%20index&gclsrc=aw.ds&gad_ source=1

Load rating of 89 is 1279 lbs per tire and 93 is 1433 lbs per tire

These cars weigh like 3400 lbs with about 50/50 weight distribution, so front and rear is handling about 1700lbs. I think those load ratings are more than enough. I don't think you need a load rating of 100.

Someone correct me if I'm wrong.

Awesome - thank you for this breakdown. This is exactly what I needed. I’ll take this feedback back to the rep I was working with and have them regenerate the quote.

I got the initial spec I referenced (235/265) from that tire thread.

I just checked that thread. For 265 width on a 19"
wheel, the recommended size is 265/30/19. You were asking about 265/35/19. Different sidewall height, different overall diameter. This is why I said we need the full sizes, not just the widths!

Did the rep say what the load rating needed to be and why?

As elrichmeister pointed out 265/35/19 is a stock E9x M3 rear tire size (I thought it looked familiar!). There's another option for the E9x rear, 265/40/18, in which the PS4S has a load rating of 101Y XL. Really grasping at straws here, but maybe that's why your tire guy thought 98Y XL wasn't enough – i.e. he looked up the wrong M3 and then saw the load rating on the wrong size? IDK...

That’s a fair point - they have my car in the system by VIN so he pulled my car up in their system and began his workflow.

Thank you for your feedback and help!

[CrisSilberGrau]

What would be the going price for a solid 8.5/10 Mtextur interior (F2AT)?

[IamFODI]

[QUOTE=AWE46M3;n287349]I got the initial spec I referenced (235/265) from that tire thread.[quote]
I just checked that thread. For 265 width on a 19" wheel, the recommended size is 265/30/19. You were asking about 265/35/19. Different sidewall height, different overall diameter. This is why I said we need the full sizes, not just the widths!

Americas tire does not carry a 265/35/19 Michelin pilot sport 4S with a load index high enough for my car according to the rep who quoted me today.

Did the rep say what the load rating needed to be and why?

As elrichmeister pointed out 265/35/19 is a stock E9x M3 rear tire size (I thought it looked familiar!). There's another option for the E9x rear, 265/40/18, in which the PS4S has a load rating of 101Y XL. Really grasping at straws here, but maybe that's why your tire guy thought 98Y XL wasn't enough – i.e. he looked up the wrong M3 and then saw the load rating on the wrong size? IDK...