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D4 7j2741

D4 7j2741

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R3steve
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I have to get my precombustion chambers out of the head and I don't know if they screw out or how to get them out. Any information would be helpful. Thanks.
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Sun, Feb 10, 2008 9:46 AM
Old Magnet
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Yes, they unscrew after removing the set screw on the side of the head.
Takes a hex tool to undo them and 200 ft.lbs torque to put them back.
Get new gaskets and use plenty of anti seize on the threads. Redrill for new dog point setscrews once re-installed.
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Sun, Feb 10, 2008 11:44 AM
R3steve
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Reply to Old Magnet:
Yes, they unscrew after removing the set screw on the side of the head.
Takes a hex tool to undo them and 200 ft.lbs torque to put them back.
Get new gaskets and use plenty of anti seize on the threads. Redrill for new dog point setscrews once re-installed.
Thanks Old Magnet. I just wanted to be sure before breaking something.
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Mon, Feb 11, 2008 10:21 AM
Old Magnet
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Reply to R3steve:
Thanks Old Magnet. I just wanted to be sure before breaking something.
I seem to recall there is a hex bolt head that can be made into a tool but I can't find the size in my notes.....I'll keep looking🙄 🙄
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Mon, Feb 11, 2008 10:51 AM
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