E90 335i N54 Problems

[Begbie712]

Hi Fanatics,

So it appears that my N54 has run a bearing There is an engine knock and metal filings in the oil filter.

My mechanics will only be able to strip and check it out properly in the another month or so due to their current workload. They are going to send me some indicative prices, but I know that it won't be cheap.

It's a 2008 model with low mileage (105K kms) and manual gearbox, but I'm not sure if it is worth spending a load of cash on repairing it, or finding a donor engine with an uncertain history. The other options would be to sell as is, or sell off the parts... Neither of these last two options are very attractive

Luckily I have another car, so I'm not in any rush to make a decision, but I would welcome any advice, or a recommendation for another dependable BMW MECHANIC in Cape Town.

Thanks in advance.



Sent from my JNY-LX1 using Tapatalk

 

[MedicN54]

Rebuild... if crank is still good then I would say rebuild. Its not as expensive as you may think.

 

[Dax]

Hi Fanatics,

So it appears that my N54 has run a bearing There is an engine knock and metal filings in the oil filter.

My mechanics will only be able to strip and check it out properly in the another month or so due to their current workload. They are going to send me some indicative prices, but I know that it won't be cheap.

It's a 2008 model with low mileage (105K kms) and manual gearbox, but I'm not sure if it is worth spending a load of cash on repairing it, or finding a donor engine with an uncertain history. The other options would be to sell as is, or sell off the parts... Neither of these last two options are very attractive

Luckily I have another car, so I'm not in any rush to make a decision, but I would welcome any advice, or a recommendation for another dependable BMW MECHANIC in Cape Town.

Thanks in advance.



Sent from my JNY-LX1 using Tapatalk

Depending on how you decide to rebuild will dictate the costs

The big factor is what damage has been done to the crank, and did it cause any damage to the rods (Unlikely if it did not seize)

First thing you need to know is why it ran bearings?

If it was oil starvation then you need to check everything, cams get hurt very quickly

Metallic pieces in the oil then in my opinion you need to strip and clean 100%, oil cooler as well

If your end game is big power now is the time to do it

I would use ACL Race bearings for Big ends and if you can find ACL mains or King race bearings, if crank is damaged no use trying OEM bearings

THE BIGGEST PIECE OF ADVISE I CAN GIVE YOU IS CHOOSE YOUR ENGINE BUILDER WISELY THERE ARE SOME IDIOTS IN CAPE TOWN

Give me a call and I can try direct you in the right direction. (o82 o9o 8492)

 

[MedicN54]

Depending on how you decide to rebuild will dictate the costs

The big factor is what damage has been done to the crank, and did it cause any damage to the rods (Unlikely if it did not seize)

First thing you need to know is why it ran bearings?

If it was oil starvation then you need to check everything, cams get hurt very quickly

Metallic pieces in the oil then in my opinion you need to strip and clean 100%, oil cooler as well

If your end game is big power now is the time to do it

I would use ACL Race bearings for Big ends and if you can find ACL mains or King race bearings, if crank is damaged no use trying OEM bearings

THE BIGGEST PIECE OF ADVISE I CAN GIVE YOU IS CHOOSE YOUR ENGINE BUILDER WISELY THERE ARE SOME IDIOTS IN CAPE TOWN

Give me a call and I can try direct you in the right direction. (o82 o9o 8492)

precisely Dax. Thats solid advice.

 

[Begbie712]

Depending on how you decide to rebuild will dictate the costs

The big factor is what damage has been done to the crank, and did it cause any damage to the rods (Unlikely if it did not seize)

First thing you need to know is why it ran bearings?

If it was oil starvation then you need to check everything, cams get hurt very quickly

Metallic pieces in the oil then in my opinion you need to strip and clean 100%, oil cooler as well

If your end game is big power now is the time to do it

I would use ACL Race bearings for Big ends and if you can find ACL mains or King race bearings, if crank is damaged no use trying OEM bearings

THE BIGGEST PIECE OF ADVISE I CAN GIVE YOU IS CHOOSE YOUR ENGINE BUILDER WISELY THERE ARE SOME IDIOTS IN CAPE TOWN

Give me a call and I can try direct you in the right direction. (o82 o9o 8492)

Thanks Dax. I appreciate the advice. I'll definitely give you a call to pick your brain a little more

Sent from my JNY-LX1 using Tapatalk