Tappets

[heathy325]

Just got the M52 going and it's quite noisey from the tappets the engine was stood for about 4 months before I put it in so I think they have drained of oil and I've got good oil pressure, using 5w30 fully oil, the car hasent been driven yet just run in the garage for half an hour to bleed cooling system and that, anyone got any ideas? Don't really want to strip the head to replace the stuck ones if there's a trick to free them off

[DanThe]

Just keep running it, they usually free off pretty quick once up to temp

[heathy325]

Will do cheers dan had a feeling they would quieten up when I drive it, do they ever seize and have to be changed though?

[DanThe]

Ive never seen or heard of a seized one

[heathy325]

Cool that's what I like to hear cheers

[hillbilly30]

I have one that sticks on start up from time to time, only since oil change. Might be wrong oil

[heathy325]

What is the correct oil for the m52, main dealers use 5w30 but it's green in colour if anyone had ever noticed

[rich318i]

only oil that ive ever seen thats green is life time gearbox oil

I use 5-40 fully bmw longlife

[e30rapidic]

An old trick is to run a quart of automatic transmission fluid in there for a short time. I did that and it really helped. Although I still ended up pulling the cams and rebuilding all 24.

[heathy325]

Like dan said all sorted after a 20 min drive cheers