M62 lifter tick and a potential solution..

[turquise1]

So I have the infamous M62 tick that I could not fix with too many repairs. It really sounds like lifter tick but replacing several things around including injectors and lifters themselves did not help.

I have been reading BMW actually replaces the cylinder heads (if under warranty, of course) to fix this problem. So, I am guessing the problem is with the heads (rather than the lifters) which lead me to think that the tiny oil ports that go to the lifters etc. may be blocked or not functioning well? The oil pressure will still look good and you can replace the lifters to the new ones but when there is no enough oil supply, the ticking will continue..

If that is the case, how can we clean those ports without pulling the engine apart physically? I am guessing a cleaning chemical won't work at this point because of years of gunk potentially blocking those ports. Any way to insert a wire or something to open them up?

Any ideas?


Thanks,


Ozzie

[andrewwynn]

I've used a product pre oil change the l that dissolves oil sludge, wonder if something like that can help. Same product leave in for a day vs five minutes. See if you can find somebody who had done it before


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