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Re: XJ6 Engine Problem
Posted: Tue Apr 23, 2019 2:01 pm
by NigelW
Hi Notman thanks for your suggestions, I've just checked the carbs and everything is fine with those. The small piece of metal I recovered from the combustion chamber looks like the end of a valve spring, I've yet to strip the head down to find out. The bores look in good condition still showing the honing markings, I have a honing tool and a lathe and will do as you suggest. Thank you once again for you help - Nigel.
Re: XJ6 Engine Problem
Posted: Tue Apr 23, 2019 11:21 pm
by Glyn Ruck
What a pity. Be interested if you find where the offending chunk of metal came from. Head/combustion chamber should clean up easily with a Dremel.
Good luck!
Re: XJ6 Engine Problem
Posted: Thu Apr 25, 2019 4:57 pm
by NigelW
Quick update. Removed all the pistons to give them a clean up and hone the bores - no more damage found.
Re: XJ6 Engine Problem
Posted: Thu Apr 25, 2019 6:51 pm
by Orlando St.R
Well, that's a relief!
Re: XJ6 Engine Problem
Posted: Thu Apr 25, 2019 8:01 pm
by NigelW
It is, I've got to strip the head down yet and do the tappets- can of worms coming up!
Re: XJ6 Engine Problem
Posted: Thu May 23, 2019 2:27 pm
by NigelW
Update on the engine. All back together now, I found a sticking inlet valve when doing the tappets so was replaced, nothing else caused concern.
Re: XJ6 Engine Problem
Posted: Thu May 23, 2019 2:32 pm
by Orlando St.R
It's good to see it back together. Looks really tidy, too. Nice job.

Re: XJ6 Engine Problem
Posted: Thu May 23, 2019 3:27 pm
by cass3958
Very nice Nigel! I like the way to make it even more S Type related you have the S Type in the background with the bonnet up.lol.
Re: XJ6 Engine Problem
Posted: Thu May 23, 2019 4:09 pm
by NigelW
Thanks chaps, lots of hours work on it! Still got to look at the auto box yet and the engine bay.
Re: XJ6 Engine Problem
Posted: Wed Jun 19, 2019 7:13 pm
by NigelW
The auto box is at the local specialist and I had a call from them with the result of the first look, it turns out at least half of the threads securing the sump are stripped and it was mostly held on with sealant. Some years back due to an arm injury I had to entrust a classic car garage to service the car and fit a replacement gearbox sump as it had a crack in it, looks like they've done the damage as it was fine previously when I changed the oil. As the casing is cast iron, fitting inserts is not feasible so the manager of the gearbox shop thinks he has another casing stashed away to replace it with. The rest of the parts are in the cleaning machine so waiting to see what else is going to cost.