oil leak right front of engine

[Lenwood]

i have an oil leak just below the head front right where the timing cove head and block all meet. gonna clean and see where. any advice? m20 325

[Killacortes]

Check your rocker shaft end plugs. There's 4 of them.

[E30_fiend]

rocker shaft plugs or your cam seals. there are two cam seals. One is an oring and the other a metal/rubber press in seal

[rodpaine]

i have an oil leak just below the head front right where the timing cove head and block all meet. gonna clean and see where. any advice? m20 325

That's a known issue with the M20. BMW replaced my head gasket in early '85 on my '83 528e during a factory campaign to correct two issues. It slowed it down to a weep but didn't totally fix it. A third new design gasket was installed in mid-'94 for the same leak. It didn't fix it and it still weeps. It'll be replaced again, when an MM head is installed this spring.
FWIW,
-Rod