35i Rocker Cover

G

Gingerlomax

Member
Hi All

I have a 35i (N54 engine) and it has a leaky rocker cover.. I have a new one with gasket etc, my question is should i just pay someone to do it or do it myself?? I am handy on the tools but it looks like the type of job that just goes on forever.
 
If you’re handy then do it yourself imo, set aside an afternoon so you’re not rushing and getting frustrated, it’s fiddly in places and you do need to take quite a lot off but it’s very doable. I’ve done a couple so if you do start and get stuck just give me a shout. Keep the coils and injectors in the order they came out otherwise you’ll have running issues. thumbsup:
 
Unless you’re making serious boost just as good to go with new Eldor oe coils n Bosch plugs :tumbleweed:

But if you do want to spend isome money…go ahead..make my day! :rofl:
 
BMW calls for the 6 spark plug sleeves to be replaced when doing the cam box cover..

07 Sleeve 6 11127575422
 
B21 said:
BMW calls for the 6 spark plug sleeves to be replaced when doing the cam box cover..

07 Sleeve 6 11127575422
Click to expand...

They would do… :roll: This is the same BMW that makes your I drive say you need new brake pads when they’re almost new all round, ask me how I know….. :headbang:

Nowt wrong with my 35i plug sleeves at 125k miles.
 
john-e89 said:
B21 said:
BMW calls for the 6 spark plug sleeves to be replaced when doing the cam box cover..

07 Sleeve 6 11127575422
Click to expand...

They would do… :roll: This is the same BMW that makes your I drive say you need new brake pads when they’re almost new all round, ask me how I know….. :headbang:

Nowt wrong with my 35i plug sleeves at 125k miles.
Click to expand...

I’m merely giving the OP the official guidance.,the fact that you can’t reset your idrive is not my problem.. :tumbleweed: :rofl:
 
B21 said:
john-e89 said:
B21 said:
BMW calls for the 6 spark plug sleeves to be replaced when doing the cam box cover..

07 Sleeve 6 11127575422
Click to expand...

They would do… :roll: This is the same BMW that makes your I drive say you need new brake pads when they’re almost new all round, ask me how I know….. :headbang:

Nowt wrong with my 35i plug sleeves at 125k miles.
Click to expand...

I’m merely giving the OP the official guidance.,the fact that you can’t reset your idrive is not my problem.. :tumbleweed: :rofl:
Click to expand...

And I’m merely giving OP real world examples rather than regurgitating the money grabbing unnecessary nonsense that bmw spout, so he can make his own mind up can’t he.

I can reset my idrive…please please PLEASE don’t churn out a 42 page lecture on it, I’m fine, thank you. 🙏
 
john-e89 said:
If you’re handy then do it yourself imo, set aside an afternoon so you’re not rushing and getting frustrated, it’s fiddly in places and you do need to take quite a lot off but it’s very doable. I’ve done a couple so if you do start and get stuck just give me a shout. Keep the coils and injectors in the order they came out otherwise you’ll have running issues. thumbsup:
Click to expand...

Agree it's not that difficult a job, and can easily be done in a couple of hours taking your time.

There's no need to remove the injectors to replace the cover ... just unplug and remove the fuel lines from the rail to the injectors. If you do actually remove the injectors you will need to replace the injector seals at a minimum which requires a special tool (fairly cheap) to compress the seal so it fits into the injector bore. don't just try to shove them back in or they won't seat or seal properly. The seal quickly swells after installation for sealing and re subject to high temps and compression with the direct injection.

The injector decoupler elements are suggested, but some people reuse them.
 
Z4Dude said:
john-e89 said:
If you’re handy then do it yourself imo, set aside an afternoon so you’re not rushing and getting frustrated, it’s fiddly in places and you do need to take quite a lot off but it’s very doable. I’ve done a couple so if you do start and get stuck just give me a shout. Keep the coils and injectors in the order they came out otherwise you’ll have running issues. thumbsup:
Click to expand...

Agree it's not that difficult a job, and can easily be done in a couple of hours taking your time.

There's no need to remove the injectors to replace the cover ... just unplug and remove the fuel lines from the rail to the injectors. If you do actually remove the injectors you will need to replace the injector seals at a minimum which requires a special tool (fairly cheap) to compress the seal so it fits into the injector bore. don't just try to shove them back in or they won't seat or seal properly. The seal quickly swells after installation for sealing and re subject to high temps and compression with the direct injection.

The injector decoupler elements are suggested, but some people reuse them.
Click to expand...

I was hoping to leave the injectors well alone and just remove the pipework.
 
Gingerlomax said:
Z4Dude said:
john-e89 said:
If you’re handy then do it yourself imo, set aside an afternoon so you’re not rushing and getting frustrated, it’s fiddly in places and you do need to take quite a lot off but it’s very doable. I’ve done a couple so if you do start and get stuck just give me a shout. Keep the coils and injectors in the order they came out otherwise you’ll have running issues. thumbsup:
Click to expand...

Agree it's not that difficult a job, and can easily be done in a couple of hours taking your time.

There's no need to remove the injectors to replace the cover ... just unplug and remove the fuel lines from the rail to the injectors. If you do actually remove the injectors you will need to replace the injector seals at a minimum which requires a special tool (fairly cheap) to compress the seal so it fits into the injector bore. don't just try to shove them back in or they won't seat or seal properly. The seal quickly swells after installation for sealing and re subject to high temps and compression with the direct injection.

The injector decoupler elements are suggested, but some people reuse them.
Click to expand...

I was hoping to leave the injectors well alone and just remove the pipework.
Click to expand...
No reason to remove the injectors for a cam cover change on an N54
 
B21 said:
Gingerlomax said:
Z4Dude said:
Agree it's not that difficult a job, and can easily be done in a couple of hours taking your time.

There's no need to remove the injectors to replace the cover ... just unplug and remove the fuel lines from the rail to the injectors. If you do actually remove the injectors you will need to replace the injector seals at a minimum which requires a special tool (fairly cheap) to compress the seal so it fits into the injector bore. don't just try to shove them back in or they won't seat or seal properly. The seal quickly swells after installation for sealing and re subject to high temps and compression with the direct injection.

The injector decoupler elements are suggested, but some people reuse them.
Click to expand...

I was hoping to leave the injectors well alone and just remove the pipework.
Click to expand...
No reason to remove the injectors for a cam cover change on an N54
Click to expand...

Awesome thank you.
 
Cant see it mentioned in the thread so just in case its not:

Bolts are aluminium and MUST be replaced also, they stretch as they are torqued.
Any attempt to reuse or 'nip them up' can result in a broken bolt and all the issues surrounding extraction from the head.
Same as sump bolts and a few others
 
mcbutler said:
Cant see it mentioned in the thread so just in case its not:

Bolts are aluminium and MUST be replaced also, they stretch as they are torqued.
Any attempt to reuse or 'nip them up' can result in a broken bolt and all the issues surrounding extraction from the head.
Same as sump bolts and a few others
Click to expand...

Thanks for the heads up. The new cover comes with bolts so no need to re-use but i will make sure i torque them up correctly.
 
Well its done!! Only shaved a couple of knuckles while changing the cover. Didn't change the coil packs over as ran out of time with the weather..
 
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