Engine earth

[Phid]

I have got an E30 with M50 part completed project. I want to check engine is properly earthed to the chassis - but where is the earth strap located? I have have quick scan underneath and above but can't immediately see it. The battery terminal to chassis strap is connected to the suspension turret.
Many thanks

[TriggerFish]

With the original M20 engine, the earth attachment point is on the passenger (RHD) chassis leg, roughly inline with the filler cap for the coolant tank. I dunno if the M10/M4* were in the same place or not though.

[Phid]

Thanks - I can see that bolt on the chassis leg. Where on the M50 engine would that go to? I guess anywhere on the block within reach?

[DanThe]

M50 engine arms have a square block designed for am 8mm bolt (13mm hex head) to drop into and bolt the strap to

[Phid]

That’s really helpful
Thank you all