Hey guys, I am working on the engine of my 1967 Jaguar Mark X/420G. Does anyone have the factory service manual for it?
I would greatly appreciate it, thanks, Oden

 

I see you've had no responses. Have you searched the internet ? There aren't a whole lot of these cars around now, so I suspect any factory manuals have long gone to landfill,
If you're working on the engine, there is huge commonality with the other Jaguar saloons as they all used the same engne. Is yours the 3.8 or the 4.2 ? Any manual for a 420, an S-type or a Mark 2 is likely to tell you almost all you need to know, if not everything.

 

Hey, thanks Fraser Mitchell, yeah I found the manual for the Mark 2 and a version for the 420G, so I think I should have enough info on the engine now.

 

I really loved working on my 4.2 out of an XJ6 I once owned. They are heavy lumps, so make sure you have a heavy duy engine stand to mount it on while you work on it. One thing you must check is block cracking which was the reason I had to work on mine. . The 4.2 was not a good development of the earlier 3.4 and 3.8 engines. I won't go into the detail, but have a look at the video here: -
Jim's Automotive Machine Shop, Inc. - YouTube