Is it an easy enough job to replace the front engine plate to block gasket with the engine in the car, or is it easier with the engine out? I replaced all the other engine gaskets except for that one when the engine was out of the car. I now have an oil leak coming from the area at the bottom of the timing cover.

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1963 Morris 850

It's easy to do in the car, just don't disturb the rubber 1/2 moon engine/gearbox seal that's sitting behind it...
Makes sure the leak isn't from there, and not the gasket.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Make sure its not a leaking crank seal - caused by tightening the timing chain cover bolts (or just having them a bit tight) before the crank pulley in installed...

Cheers, Ian

It's not the crank seal, as it's dry just under that. I always centre the timing cover with the pulley when installing. It's definately coming from the bottom of the timing cover/engine plate area.
I guess I should have replaced ALL the gaskets when the engine was out. I had to learn the hard way.

At least it can be replaced in the car then.

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1963 Morris 850

Most time a leak there is NOT the engine plate gasket, it is a leak from the 1/2 moon seal, which dribbles out then runs down the plate and drips off...
I doubt you can replace the 1/2 moon seal with the motor on the box, however if you can see where it's leaking from, clean it with thinners, then gun some silicone gasket sealant in there.
[edit] do this with the plate off, you won't see the problem otherwise.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.