I know this is a nono, but..

[maxashton]

I thought i'd ask before the event..

We're going to have to keg the pilsener i'm brewing.

I know that a keg won't be able to carbonate as well as it should, but i'm going to have to live with it.

I have a bag of brewer's sugar to prime with. How much should i prime my keg with?

What I'm planning on doing is secondary in the keg unpressurized for a couple of weeks, then pop it open for priming sugar and re-seal.

Does that sound reasonable?

[ColinKeb]

why not just prime it when you put it in for secondary? personaly i wouldnt bother opening it up again to prime it unless others know better.
normaly i put in 1/2 oz sugar per gallon not sureif youd require a touch more for lager though.

[PieOPah]

If you reopen to prime then you are just risking exposing your beer to nasties. The added problem is that you won't get an even mix of the priming sugar. I'm not sure whether not this matters when bulk priming, but I personally would prefer my beer to be mixed up well with the priming sugar.

For an ale I use 1/2 teaspoon per pint (never weighed it out - not sure why!) and then a touch extra.

With kegging you shouldn't be able to over-carb as there is (or should be) a pressure release valve. Put in a bit extra and don't worry about it

[prolix]

you could always tie a cable tie around the gas pressure release to increase the pressure for carbonation then remove it and squeeze the rubber valve to release the excess gas before serving.

Obviously not a manufactures recommendation

[maxashton]

Ever tried that?