How To Clean Oil From Coil Pack

[zoffhayward]

My E430 (160k miles) had a slight oil leak from the crankcase breather gaskets and a couple of the coil packs have oily gunk on them, I am going to fix leak and fit new spark plugs soon and wonder what is the best way to clean the coil packs before re-fitting them, I'm guessing solvent based cleaners could liquify the gunk and maybe carry it into the electronics inside, any ideas?

 

[martyz]

Wd40.

 

[zenman63]

Brake cleaner and lots of rags

 

[zoffhayward]

Thanks for suggestions. No danger of solvents thinning the oil and allowing it to permeate into the electrikery inside?

 

[martyz]

WD40 is an insulator(will not conduct electricity)also a de-greaser,so a good flush will do the job. Brake clean is good for metal parts,but dries out rapidly which can leave a frozen on residue on plastics.

 

[cd1974uk]

This is my solvent of choice, great stuff and doesn't dry too quickly.

http://www.amazon.co.uk/dp/B002T8YO3A/?tag=amazon0e9db-21