Hey all,

Does anyone have the head warpage spec from the FSM for a 617? My disks are at a friends who is on vacation

My head is warped .006". One machinist at the shop said put it back on with a new head gasket and the other said it would blow the gasket right away.

The tools to remove the precombustin chambers are proving to be hard to come by and I really don't want to make tools, order precombustion shims of various thicknesses, and have valves and seat ground, but I need to get the car back on the road asap. I also don't want to a doing all this work for naught.

If .006" is allowable great, if not, I guess I'll be making tools or waiting a week are more for some to arrive and another week for machine shop work to be done.

Thanks,
Brad

A new car is looking better all the time.

__________________
Brad
1981 300TD - daily driver
1963 Chevy II
2001 F-250 7.3 Power Stroke

New car = new problems in my opinion

Did you know you can acess the FSM via the official Mercedes site www.startekinfo.com?

(You need out of date software to see it but it has been officially released)

Anyway to speed you on chapter 03-015 in the non turbo manual says

Permissible irregularity of parting surface

Length ways 0.10 mm

Crosswise 0.05mm


Good luck - better the devil you know you know?

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Do I need to register with the site? I couldn't find how to access the manuals.

I'm also wondering if a turbo spec would be different than a non-turbo?

.1mm = .0039"' or .002" out of spec for a non-turbo


Thanks

__________________
Brad
1981 300TD - daily driver
1963 Chevy II
2001 F-250 7.3 Power Stroke

If it is out of spec for the non turbo the turbo will be either the same or stricter...

See this thread for the other question

Mercedes Startek have done the right thing - to help you do the right thing!

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

The question is whether the out of flat condition was measured longitudinally or transverse. The head is quite a bit stiffer in the transverse direction and I would not put it on with ".006 out of flat.

However, for the longitudinal direction, knowing that M/B is always conservative, I would take the shot at installing it with .006". Remember that you've got about 100,000 lb. of clamp load at the head gasket. Such force is more than sufficient to eliminate the out of flat condition at the point of installation.