I would like to replace the oil trap on my 1996 850R. There isn't a flame trap on the 850R but I was told by my Volvo Service manager that if the oil trap and hoses that go in and out of it are gunked up then it will cause high pressure in the crankcase. The oil trap is a small hollow black box and I just can't see how it won't eventually gunk up as the miles pile up even with regular oil changes. Since I would like to avoid blowing seals I thought I'd do this bit of preventive maintenance. It appears the oil trap is located right behind the intake manifold and is bolted to the engine block. Has anybody done this as a DIY? I would like to hear from someone who's done it on their own. I think its beyond ridiculous that a $35 dollar part will require $400 worth of labor to install. Talk about stupid design and location.