M104 Head Gasket Tech Talk
Join us for another Peachtree Section Tech Talk with Gary Edwards. This time Gary is going to take us through the ins, outs, challenges and tips of DIY Head Gasket replacement on a fairly common Mercedes Benz engine.

00:07 - Presentation
01:20 - Overview
02:06 - M104 Oil distribution diagram
02:35 - Head gasket failure picture
03:32 - Picture of head before cleaning
04:23 - Removing the head
05:24 - Keeping parts in order
06:50 - Other references worth viewing (Mercedes Source)
08:35 - Challenges of DIY
10:10 - Special Tools...
10:47 - Belt Tensioners
12:34 - Upper Timing Cover
14:06 - Marking the Timing Chain
14:40 - Verify Valve Timing
16:09 - Electrical Harness disconnection and folding out of way
18:18 - Exhaust Manifold removal, or in this case... not.
19:19 - PSA - Use OEM Mercedes Head Gasket
19:42 - Cleaning once all apart
21:00 - Cylinder head bolt hole cleaning and drying
22:45 - Challenges Aligning the head
23:52 - Upper Timing Cover reassembly
27:24 - Timing Chain Tensioner reassembly
29:25 - Exhaust Manifold reassembly (must be at done at same time)
30:15 - Cam cover leak on reassembly
31:50 - Q&A
34:00 - More tips from Danny