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Old 03-27-2013, 08:29 AM
Nevadan Nevadan is offline
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Join Date: Jan 2013
Location: Reno, Nevada
Vehicle: 740/745 D24T will be mine again soon
Posts: 253
Default Pre-chamber crack photos

The prechamber wasn't "loose" as it still required a punch to tap it out and there was no visible mark on the piston, nor was the gasket deformed from any prechamber movement. See the photos for the extent of the crack. It does not extend into the exhaust port. I think I'll save this head for future welding and machining work. There's a guy here who welded and machined a prechamber: http://picasaweb.google.com/itzdshtz...15251611814002. You can tell from his blog that he has the welding and machining equipment to do the work, but at least there's proof it has been done with good results. I also have a 2.0TD that had the cracks between the valves welded and machined, it was done before I purchased the head, but again, at least I know it was done.
Considering the rarity of the head and the fact that it isn't warped I'll put it on my shelf. See the next post for the ripped off cam bearing cap base.

From the prechamber side:

From the exhaust port side:
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J.D. in Reno
1958 Mercedes 180D (rebuilding now)
1985 VW Jetta 1.6TD
1985 Volvo 745 Wagon 2.4TD (sold but still maintain it)
1987 VW Quantum Syncro 2.2 (converting to 2.0TD)
1996 TDI Passat
1997 Chevy 3/4 ton 6.5TD
2006 V10 TDI Touareg

Last edited by Nevadan; 03-27-2013 at 08:32 AM.
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