heres a interesting find:

while cleaning parts yesterday I found one of the head bolts cracked! Photo attached. With my luck it would have sheared off during reassembly.

Attached Thumbnails

   

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Mark King
Santa Paula, Ca
'87 300D Turbo
'79 300SD
'72 280SEL 4.5

I thought it was common practice to replace the head bolts anyway.

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'02 BMW 325i
'85 300D 450k
'93 190E 2.6 170k(killed by tree)
'08 Ducati Hypermotard 1100S 6k
'06 Ducati S2R800 14k(sold)

Well you can, but you should messure them for stretch then replace accordingly.

Good catch! That would have sucked if it broke off!

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

i would replace them all.... its only 40 dollars... and it means that you wont waste 30 hours and hundreds of more dollars drilling and boring another one out.

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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.

Vehicle: 1987 Mercedes Benz 300D Turbo
Part: Cylinder Head Bolt




Have a great day.

__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

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