I had a tricky job to re-helicoil a stripped thread on the cam oil feed pipe on a Jaguar XK150 today. Could not work out how to keep all the swarf from entering the oil gallery! Luckily the oil feed hole is at the top of the head, so I removed the rear cam retaining cap, turned the engine and lined up the hole in the cam with the hole in the head and then kept a constant supply of compressed air going in from the cam and blowing the swarf out, this worked a treat and then inspection with a miniature camera probe showed a clear, clean oil gallery.

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Jaguar XK150 oilfeed

 

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Jaguar XK150 oilfeed

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