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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Bmw dreaded serpentine belt sucked in



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      04-19-2021, 08:34 AM   #23
iqraceworks
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Quote:
Originally Posted by Saif2018 View Post
Have you got a diagram of the new way?

Just want to check to see if mine has been done that way,
Just Google it....lots of threads/pictures on the two different ways.
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      04-19-2021, 09:37 AM   #24
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Originally Posted by iqraceworks View Post
Just Google it....lots of threads/pictures on the two different ways.
Thanks, will do.
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      04-19-2021, 06:08 PM   #25
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Quote:
Originally Posted by iqraceworks View Post
When I put my new belt on a while back, I saw somewhere that there are a couple different routings you can do as far as how you run the belt around the pulleys. The "new" way gets the belt away from the frame, so you don't have to worry as much about it hitting if the motor mounts start to wear out.

....just something to think about.
Regardless of how you route the belt IT WILL NOT BE any closer or further away from the subframe.
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      04-19-2021, 09:28 PM   #26
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Regardless of how you route the belt IT WILL NOT BE any closer or further away from the subframe.
Cool. Thanks for clearing that up
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      04-20-2021, 12:00 AM   #27
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Originally Posted by feuer View Post
Regardless of how you route the belt IT WILL NOT BE any closer or further away from the subframe.
So there's no advantage to any particular routing method?
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      04-20-2021, 05:59 AM   #28
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So there's no advantage to any particular routing method?
I would think there has to be some advantage.......I think it gets the belt up farther from the steering rack??
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      04-20-2021, 07:06 AM   #29
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Quote:
Originally Posted by Saif2018 View Post
So there's no advantage to any particular routing method?
Correct. None.
Quote:
Originally Posted by iqraceworks View Post
I would think there has to be some advantage.......I think it gets the belt up farther from the steering rack??
Steering rack? I suggest you study the front end.

Power steering pulley and subframe is the ONLY point of possible contact and NO matter how you route the belt IT HAS to go around the power steering pulley.
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      04-20-2021, 08:46 AM   #30
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How often should the belts and idlers/pulleys be changed?

Not sure if it's worth putting that crank seal plate in now...
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      04-20-2021, 08:57 AM   #31
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Quote:
Originally Posted by feuer View Post
Correct. None.

Steering rack? I suggest you study the front end.

Power steering pulley and subframe is the ONLY point of possible contact and NO matter how you route the belt IT HAS to go around the power steering pulley.
Thanks for clearing that up
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      04-20-2021, 09:10 AM   #32
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So my serpentine belt got sucked in. On my 335i e90 st and the front seal has gone so far in engine the special puller tool doesn't work tried several times follow a guide
Long, skinny needle nose pliers. You need to find the metal part of the seal and pull at it.
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      04-20-2021, 10:37 AM   #33
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Hey I got my seal out now and everything looks okay in the engine. I cleaned all the belt out and put new oil pump gear with locking bolt I have a lot to order and don't have the $$$ all at once. so I'm going to hopefully start back up next week and I bought metal power steering pulley, crank seal plate, I hope this prevents this ever happening again
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      04-20-2021, 11:04 AM   #34
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Quote:
Originally Posted by mweisdorfer View Post
Long, skinny needle nose pliers. You need to find the metal part of the seal and pull at it.
That won’t help you. No way you can pull it out with long skinny needles nose pliers. Like 0 chance. Only option when seal is severely damaged and the tool can’t grip is to push it inside, cut it in half and get it out.
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      04-21-2021, 09:43 AM   #35
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Quote:
Originally Posted by iansexotics View Post
Hey I got my seal out now and everything looks okay in the engine. I cleaned all the belt out and put new oil pump gear with locking bolt I have a lot to order and don't have the $$$ all at once. so I'm going to hopefully start back up next week and I bought metal power steering pulley, crank seal plate, I hope this prevents this ever happening again
Did you take the valve cover off & clean up the top too?
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      04-21-2021, 09:48 AM   #36
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Quote:
Originally Posted by iansexotics View Post
Hey I got my seal out now and everything looks okay in the engine. I cleaned all the belt out and put new oil pump gear with locking bolt I have a lot to order and don't have the $$$ all at once. so I'm going to hopefully start back up next week and I bought metal power steering pulley, crank seal plate, I hope this prevents this ever happening again
The crank seal plate will prevent the belt from getting sucked up.

The only to prevent losing the belt off the pulleys is to update your engine mounts to 335is or poly 60/80a.

Having the aluminum PS Pulley means the belt probably won't shred when the pulley hits the subframe, as a result of the worn out engine mounts. The pulley will just dent & probably throw the belt off.

The belt shreds because the plastic pulley chips from hitting the subframe and creates a sharp edge; thus, shredding the belt.
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      04-21-2021, 04:28 PM   #37
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It's a single turbo I already have solid motor mounts
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      07-04-2021, 12:37 PM   #38
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I’m going through this right now. What other thing should be replaced “while I’m in there”?
Oil pan gasket and bolts, front main seal, valve cover gaskets, oil change. It’s an n55 manual transmission. TIA
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      07-04-2021, 02:52 PM   #39
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Originally Posted by robrxt View Post
I’m going through this right now. What other thing should be replaced “while I’m in there”?
Oil pan gasket and bolts, front main seal, valve cover gaskets, oil change. It’s an n55 manual transmission. TIA
On an N55, i'd probably do rod bearings while down there. This seems to be a rather controversial decision on this forum though.
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