Crank Seal Guard

RoccoMarcellus · 01-16-2022, 08:13 AM

Do I need to do a crank seal guard ?? Anyone running them ??

HarryTee · 01-16-2022, 08:48 AM

Quote:

Originally Posted by RoccoMarcellus

Do I need to do a crank seal guard ?? Anyone running them ??

What is it? (No, it's not a question

)

mapster37 · 01-16-2022, 09:00 AM

this product is a good idea, but i feel if you properly maintain your vehicle its really unnecessary....

RugbyBro · 01-16-2022, 10:16 AM

S55 doesn’t really have OFHG or valve cover gasket issues so with proper maintenance and replacement of the drive belt at the correct intervals, this product doesn’t seem necessary. Theoretically the problem it fixes exists, but practically it doesn’t.

behindthen0thing · 01-16-2022, 10:23 AM

naww

TopJimmy · 01-16-2022, 11:38 AM

Another third-party fix for what's basically a non-problem. If your serpentine belt tensioner wears out and you rev the engine way up the belt can slip off. If the slipped belt goes back behind the crank hub it wraps around the crankshaft and chews up the front main seal of the crankshaft. It's ugly when it happens, but also extremely rare.

Strum the belt with a finger. If your belt goes "pling" like a banjo string it's perfect. If you can push slack then get it looked at.

01-16-2022, 08:13 AM	#1
RoccoMarcellus Private 17 Rep 83 Posts Drives: F82 BMW M4 Join Date: Jul 2021 Location: Singapore iTrader: (0)	Crank Seal Guard - Needed ?? Do I need to do a crank seal guard ?? Anyone running them ??
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01-16-2022, 09:00 AM	#3
mapster37 Captain 357 Rep 923 Posts Drives: F80 Join Date: Sep 2018 Location: Davie iTrader: (2)	this product is a good idea, but i feel if you properly maintain your vehicle its really unnecessary....
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01-16-2022, 10:16 AM	#4
RugbyBro Brigadier General 7601 Rep 3,603 Posts Drives: M3 Join Date: Jun 2019 Location: Seattle iTrader: (0)	S55 doesn’t really have OFHG or valve cover gasket issues so with proper maintenance and replacement of the drive belt at the correct intervals, this product doesn’t seem necessary. Theoretically the problem it fixes exists, but practically it doesn’t. __________________ Current: F80 Prior: F82, F32
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01-16-2022, 10:23 AM	#5
behindthen0thing Captain 840 Rep 937 Posts Drives: M4 Join Date: Jul 2018 Location: Germany iTrader: (0)	naww
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01-16-2022, 11:38 AM	#6
TopJimmy Major General 5450 Rep 5,143 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	Another third-party fix for what's basically a non-problem. If your serpentine belt tensioner wears out and you rev the engine way up the belt can slip off. If the slipped belt goes back behind the crank hub it wraps around the crankshaft and chews up the front main seal of the crankshaft. It's ugly when it happens, but also extremely rare. Strum the belt with a finger. If your belt goes "pling" like a banjo string it's perfect. If you can push slack then get it looked at. __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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