Genuine LR is $60, Proline is $15. Is the LR one really any better or are you just paying more for the name?

 

To answer your PM, proline will work fine. Genuine parts get the green box tax. Occasionally it's actually a lot better to get a LR part, but for gaskets I always use proline.

 

Rtv makes leaks stay gone!

 

I would use aviation gasket sealer by permatex.
Don't over tighten.
You will distort the gasket.

 

"Rtv makes leaks stay gone!"
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Not in my experience; I have found, through years of this sort of work, that Rtv does work for some applications, but more often than not, it isn't worth the effort of putting it on. I know Rtv is a popular product, but, again, in my 50 years experience, I have found it not often worth using, when other products work so much better!

"I would use aviation gasket sealer by permatex.
Don't over tighten.
You will distort the gasket."
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Agree 100%, again, in my experience. It is so much better than the Rtv that it is no contest between the two. There are other products just as good, but none better, that I have found.

I know that my saying this won't stop many of you from using your beloved Rtv, so go ahead and use it; when you find it still leaks, remember what I said, as you prepare to do the job again!

 

How many in/lbs? Or do you just guess?

 

You can look in Rave. But I would just snug the bolts down. Tighten them in a pattern like cylinder head bolts - but just snug them down.
Run the Discovery for a few days, then snug down the bolts again.
In a month snug them one more time and done.

Dealers don't want the Rover back in so, they just torque them and that's fine.
But some older bolts or threads may not tolerate full torque.

 

Rtv with a new gasket, I have never had anything leak a second time when I applied it evenly and correctly. No leaks on my disco since I re-finished all my gaskets a year and a half ago.

 

Assuming you apply RTV to crank case, not oil pan side...or do you do both?