M180 cylinder head. Allen bolt sizes?

[Idle]

Since I am considered by my hot rodding friends to be the Mercedes Guru I have been asked to help remove a cylinder head from an M180 engine. I know there are two sizes of allen head bolts that hold this thing down but I can't find any info on what size they are.

This is located about 600 miles from my house. It is at least 200 miles from the nearest place to buy tools. There is also a lot of walking involved to get to it.

So I don't want to carry in any more tools than I need to and running to Sears to buy the right tool is not a realistic option.

SO... Does anyone know the allen bolt size for the large bolts? And the four smaller bolts?

This will come with the intake and exhaust manifold attached so I don't need to remove those. If the exhaust pipes cannot be removed they will just be cut.

I thought this would be an easy answer to find but so far no luck. So I just though I would ask someone here.

[Benz Dr.]

The head bolts are 10mm and I think the ones in the chain case are 5mm. Why not grab a couple of allen head sockets that cover the nearby sizes before you leave.

[Idle]

I was trying to cut the weight load as much as I could before walking back into this thing. It is parked in a field that makes you wonder how they drove it in there.

But I got to thinking about it and decided to just carry a full set to the farm and then walk back to the truck if I take in the wrong size.

The only way I can figure the car wound up parked where it is is that the owner was driving it out there, it quit on him, and then the climate changed to the point that driving in there is no longer possible. Yeah, its' been there for eons.

When it was driven in the world was a more arid place and hard ground was the rule. Now the area is a bit swampy. I can't figure out how else it got there.

Plus I am getting on in years and can't carry stuff like I once did.

Oh, and thanks. After I do this I will post the correct sizes.