Thanks for watching! Hope you guys enjoy the video or at least find it interesting or useful! It took hours to put together, so hit that LIKE button to make it all worth it. BMW N55 Engine Rebuild Project Playlist: ua-cam.com/play/PLfGJyGAcNr7-J2rSmmcNcQIT0QIvi2jCL.html BMW 335i Playlist: ua-cam.com/play/PLfGJyGAcNr78Xbwh-kwd90uoDwGM3qr57.html N55 Running with chunks of metal: ua-cam.com/video/fgYbO-COEyg/v-deo.html Plastigage video: ua-cam.com/video/oz8vA8czDg0/v-deo.html
Thank you for this tutorial! I was able to finish my car in a weekend with the engine still attached. Replaced all new oil pump bolts and oil pan gasket along with bolts :D
Thank you so much for making these videos, I am in a similar position with my 335i and after watching your videos I feel confident enough to tackle an engine rebuild on my own.
If your car is already in good condition, change your oil interval to short periods and be sensible with warming up the engine and you shouldn't really have issues.
I am wondering if these King bearings could last longer and be more durable for track use on an AUTOMATIC N55 2014 335 since the autos don't have oil pan upgrades for heavy duty cornering.
I'm at 100k miles and its time for oil pan gasket, the car is well maintained and oil change every 3k miles , should I take them out and replacing them ?
old response but king bearings should be quite a bit overkill for the n55 which isnt a bad thing but the wait time on king bearings currently is a bit ridiculous and i think ACL bearings should do the job just fine
If I have a rod knock and found a small amount of metal flakes/metal dust in the oil filter, am I screwed? Is there a chance we can replace the bearings and be alright? Or am I almost certainly looking at a full engine replacement?
The only way to find out is to pull the oil pan off and check them. If the crankshaft has not been scored or damaged, you are good to just replace the bearings.
Hey man, I’m going to be doing the bearings on my N20 as I think I have early rod knock. I’m planning on doing plastiguage, but can’t decide on racing bearings, or the colour coded bmw ones. Am I right in thinking race bearings don’t have colour fittings and are based on averages? With the slightly increased spacing does this mean they would be noisy, or lower oil pressure? Thanks
Hi There! The aftermarket bearing are generally the average of all the values that are possible on a stock engine. They also have the special coating which should allow a longer lifetime but they do not have as tight of a tolerance as a color coded bearing would have. This allows more oil flow and slightly lower oil pressure in the engine, increasing the life of the engine.
I don’t understand, what is making the marking on the bearing when you first torque it to check clearance? It looks like some kind of grease or oil or something. Sorry, I don’t really understand the in-depth mechanical repairs needed for these engines, I’ve pretty much done most repairs on cars your can do without internal engine repairs, and I’m just trying to learn more as I have an N55 and I keep hearing all this stuff about rod bearing failure. What I’m understanding is that your torquing down the cap, and the cap is making contact with the bearing (Or is nearly making contact?) and the clearance is displayed and measured by that marking on the bearing, but what is that marking from? Is there some kind of oil or paste you coated the cap with? Did I miss something? *edit* Ohhhh, it’s the plastigauge. It looks like a piece of thread, but it compresses into that paste like substance once the cap torques down and measures clearance?
There are a few reasons for rod bearings to fail, but mostly due to oil starvation. So, if you follow BMW's recommended 15000 mile oil intervals, this happens. Of course, it can also happen due to over revving, tuning, beating on the engine constantly, overheating etc. Change your oil every 5k miles, never let the car overheat or put excessive load on the engine. I've also heard that tons of very short trips or lot of idling can be a culprit, but I have nothing to support that claim.
Thanks for the sub! You can do it in the vehicle, but you will have to drop the subframe in order to take the oil pan off. I've done it on a Z4 with the N20 engine.
Plastic gauge. What if it is measured out of range? Take crankshaft out to machine shop to grind down the journals, and get oversized bearings? No kidding.
Ive never seen anybody use the stock bearings not 1 shop in California suggest that they all use aftermarket bearings why would you replace a defective part with another defective part ? 🤔seems like your not speaking from experience. Almost every rod bearings replacement on s65’s in LA are using either ACL OR BE bearings and they are running stronger than ever.
Thanks for watching!
Hope you guys enjoy the video or at least find it interesting or useful!
It took hours to put together, so hit that LIKE button to make it all worth it.
BMW N55 Engine Rebuild Project Playlist: ua-cam.com/play/PLfGJyGAcNr7-J2rSmmcNcQIT0QIvi2jCL.html
BMW 335i Playlist: ua-cam.com/play/PLfGJyGAcNr78Xbwh-kwd90uoDwGM3qr57.html
N55 Running with chunks of metal: ua-cam.com/video/fgYbO-COEyg/v-deo.html
Plastigage video: ua-cam.com/video/oz8vA8czDg0/v-deo.html
I recpect your work. My car have same problem where did you get it crankshaft?
Hey where did you find all the clearance specs for your bearings? 6:56
Absolutely love this series. Really want to buy an N55 to rebuild myself to learn.
Thanks! It was a fun project and I learned a ton about engines. If you can find a cheap one or a mechanics special BMW for cheap, i recommend it!
Thank you for this tutorial! I was able to finish my car in a weekend with the engine still attached. Replaced all new oil pump bolts and oil pan gasket along with bolts :D
Thank you so much for making these videos, I am in a similar position with my 335i and after watching your videos I feel confident enough to tackle an engine rebuild on my own.
Thanks for watching, hopefully it'll be an easy and fun rebuild for ya!
All of your content is good to watch. I have same engine so learning everything
Glad to hear it! Thanks for watching.
Great video. Thanks for the level of detail provided!
Very welcome! Thanks for watching.
Love this engine rebuild series, very interesting content.
Love it man. Awesome work!
Thanks a ton!
Hello great video.. Where can I get this complete set that you have have?. Amazon not showing the complete Calico set you have..
This was super insightful! Thank you!!!
Thank for watching!
If your car is already in good condition, change your oil interval to short periods and be sensible with warming up the engine and you shouldn't really have issues.
How would you check if it's in good condition though?
@@neonbuzz7392 A well maintained car with records is what I consider good condition.
@@jimftr eh, some are just built wrong even with good maintenance won't do it
Awesome video man!
Great video where I can find your instructional PDF?
very interesting content, exactly what I'm looking for. thx u
I am wondering if these King bearings could last longer and be more durable for track use on an AUTOMATIC N55 2014 335 since the autos don't have oil pan upgrades for heavy duty cornering.
Great video! How are the connectin rod bearings holding up 2 years later?
Amazing man thank you for this content!!!!!!!!!!!!🙋♂️🙋♂️
My pleasure!
I'm at 100k miles and its time for oil pan gasket, the car is well maintained and oil change every 3k miles , should I take them out and replacing them ?
how do you spin the engine without the timing chain connected to the oil pump
Hi, I'm trying to decide what bearings to buy. How did the King Bearings hold up? any issues? Thank you
old response but king bearings should be quite a bit overkill for the n55 which isnt a bad thing but the wait time on king bearings currently is a bit ridiculous and i think ACL bearings should do the job just fine
Where do you het the rod bearings that you are using from?
I'm about to purchase these rods for a friend's customer, are they actually good quality? he's rebuilding a N55 too.
They worked so far! I don't really have any other way to tell you if they are good or not.
If I have a rod knock and found a small amount of metal flakes/metal dust in the oil filter, am I screwed? Is there a chance we can replace the bearings and be alright? Or am I almost certainly looking at a full engine replacement?
The only way to find out is to pull the oil pan off and check them. If the crankshaft has not been scored or damaged, you are good to just replace the bearings.
Hey man, I’m going to be doing the bearings on my N20 as I think I have early rod knock. I’m planning on doing plastiguage, but can’t decide on racing bearings, or the colour coded bmw ones.
Am I right in thinking race bearings don’t have colour fittings and are based on averages? With the slightly increased spacing does this mean they would be noisy, or lower oil pressure?
Thanks
Hi There!
The aftermarket bearing are generally the average of all the values that are possible on a stock engine. They also have the special coating which should allow a longer lifetime but they do not have as tight of a tolerance as a color coded bearing would have. This allows more oil flow and slightly lower oil pressure in the engine, increasing the life of the engine.
I don’t understand, what is making the marking on the bearing when you first torque it to check clearance? It looks like some kind of grease or oil or something.
Sorry, I don’t really understand the in-depth mechanical repairs needed for these engines, I’ve pretty much done most repairs on cars your can do without internal engine repairs, and I’m just trying to learn more as I have an N55 and I keep hearing all this stuff about rod bearing failure.
What I’m understanding is that your torquing down the cap, and the cap is making contact with the bearing (Or is nearly making contact?) and the clearance is displayed and measured by that marking on the bearing, but what is that marking from? Is there some kind of oil or paste you coated the cap with? Did I miss something?
*edit* Ohhhh, it’s the plastigauge. It looks like a piece of thread, but it compresses into that paste like substance once the cap torques down and measures clearance?
What should this job cost on a 2011 n55 x5 awd? Where are you located?
So should I do my rod bearings before there is a problem?
any tips for getting the axles out? im struggling to even get my axles bolts to turn (car is from up north)
Here is how I did it: How to Remove BMW Front Axle - CV Axle on BMW E90/E92 xDrive
ua-cam.com/video/U5MCEM6-e1U/v-deo.html
I need help with the tightening of the connecting rod and main, please
too hard to tighting them on the ground or what
What causes this to fail in the n55 and is there any prevention you can do?
There are a few reasons for rod bearings to fail, but mostly due to oil starvation. So, if you follow BMW's recommended 15000 mile oil intervals, this happens. Of course, it can also happen due to over revving, tuning, beating on the engine constantly, overheating etc.
Change your oil every 5k miles, never let the car overheat or put excessive load on the engine. I've also heard that tons of very short trips or lot of idling can be a culprit, but I have nothing to support that claim.
hi, thanks for your videos, where can i get calico brand rod bearings?
I got them directly from their website, but they do go out of stock fairly often.
Is it still running?
Subbed! I'm planing on doing my rod bearings on my 2011 335i n55 as well. I would be able to do the rod bearings on the car right?
Thanks for the sub! You can do it in the vehicle, but you will have to drop the subframe in order to take the oil pan off. I've done it on a Z4 with the N20 engine.
@@SimpleCarGuy thanks so much dude I appreciate you taking time to make such a informative video 🙌🙌👍👍👍
You went with Calico or King bearings? Or are they Calico coated King bearings?
They are calico coated king bearings.
Where I can buy them, can you post a link?
where did tou get the clearance spec for the connecting rods
Did you ever find the answer because no one answers this and it is not provided in ISTA
Do I need to plasticgauge if I’m using stock clearance Bearings
BMW recommends it to confirm you have correct and consistent clearances.
You want to buy my n55 with rod bearing issue?
Are these forge internals?
They are not.
Plastic gauge. What if it is measured out of range? Take crankshaft out to machine shop to grind down the journals, and get oversized bearings? No kidding.
You're exactly right. If it's out of range, you will need to have it machines .25 'smaller' and get oversized bearings.
@@SimpleCarGuy Thanks. Truly appreciate the videos u make.
How much would a job like this usually cost?
I'm not a mechanic, so I don't know. I would imagine at least a couple thousand bucks.
around 4k cad or do the math urself 40hrs x shop rate x rod bearings cost=
Never, but NEVER use aftermarket rod bearings ... Always OEM !!
You will regret 🙈
And I'm talking from my experience..
Have you had an issue after using oem bearings?
@@dmkagustin nope
Can you elaborate? I have heard very positive things about aftermarket bearings.
Ive never seen anybody use the stock bearings not 1 shop in California suggest that they all use aftermarket bearings why would you replace a defective part with another defective part ? 🤔seems like your not speaking from experience. Almost every rod bearings replacement on s65’s in LA are using either ACL OR BE bearings and they are running stronger than ever.
@@claudiupop1805 if you’ve never had a problem with them then how are you speaking from experience 🤔