Few days ago I noticed an oil leak around the front left corner of the valve cover of my 116k 2003 3.0 Z4 (M54) so suspect the valve gasket has failed.
I've ordered a BMW replacement gasket and washers and after reading that it's a straightforward job am considering giving it a try, however, since most jobs I attempt go horribly wrong I'm not sure and had a couple of questions if anyone could help.
1) Are the valve cover bolts one time use or just the washers? Is there much risk of these bolts snapping?
2) I've a low setting torque wrench but am I right in thinking I just need a 10mm socket and extension bar?
3) If there are bolts securing the coils in place what torque are these?
4) What's the best way to clean the surfaces of the cover and engine after removal? I was planning to use brake cleaner on a lint free cloth and razor very lightly if required
5) Is blue hylomar sealant literally only required on the two humps at the front and rear of the cover? Do you need to wait for the sealant to go off or do you apply it and then fit the cover immediately?
Any help or advice would be really appreciated as pretty apprehensive about attempting it, cheers
I've ordered a BMW replacement gasket and washers and after reading that it's a straightforward job am considering giving it a try, however, since most jobs I attempt go horribly wrong I'm not sure and had a couple of questions if anyone could help.
1) Are the valve cover bolts one time use or just the washers? Is there much risk of these bolts snapping?
2) I've a low setting torque wrench but am I right in thinking I just need a 10mm socket and extension bar?
3) If there are bolts securing the coils in place what torque are these?
4) What's the best way to clean the surfaces of the cover and engine after removal? I was planning to use brake cleaner on a lint free cloth and razor very lightly if required
5) Is blue hylomar sealant literally only required on the two humps at the front and rear of the cover? Do you need to wait for the sealant to go off or do you apply it and then fit the cover immediately?
Any help or advice would be really appreciated as pretty apprehensive about attempting it, cheers