gasket or new engine

Hi all, i have a blown headgasket, how big a job is it? and has anyone fitted the 3,0 l 24v with succes? If i do a engine swop, what will be the best replace, laguna, citroen xatia/xm, peugoet 605, or is it just the same work.? and can the 24v engine cope with boost from a turbo without new forge pistons, reinforced headgasket and all?

[stephendell]

Only the Citroen and Peugeot PRV 24V will fit easily. The one in the Laguna 24V is a different engine.

thanks, but can the 24v deal with boost pressure, or is it a must to do the inside?

[stephendell]

I would imagine you would be OK with low boost with the standard pistons say 6-7psi as long as you retain the knock sensors and it is well mapped/fuelled. I was planning on running that sort of boost but with a supercharger rather than a tubocharger.

Anything over that and you may be safer to lower the compression. I think Venturi ran 7.3:1 on the 24V in the 400GT

Headgaskets aren't prohibitively difficult or expensive to do on the standard V6 - in fact as long as your sure nothing else needs doing on the engine they can be done with it in situ. If you do it in situ whoever does it will get back-ache though!

I hope nothing else is broken, engine still sounds ok, a litle limp on one of the cylinders but no scary sounds . One will never be know before the heads are of.

Cost wise there's not a lot in it between dropping (or lifting) the engine out and doing the heads in situ.

If it's just the heads (I doubt you've caused any other problems) then in situ is probably a fraction cheaper. If you know the clutch is due for a change or oil seals need doing or similar then you may as well drop the engine and do it all at once.

There's not a lot of difference and as with most jobs the cost is 80% labour.