Hi all, First post on this board, hope someone can help. I have a 2004 Forrester with 29,000 miles on it purchased new. This winter I noticed a prolonged valve tap( at least that`s what it sounds like) until the engine gets very warm. 15 to 20 minutes driving. It will tap under load until it warms up and drives me crazy. The thing is it didn`t do it last winter at all. The dealers and SOA tell me it`s normal but I just don`t buy it. Are these valves adjustable? I realize it`s a solid lifter cam but there must be some adjustment. The dealers I called say no. SOA told me a story about the pistons and writ pins being lightweight and a 20 minute tap is normal. Can anyone help me load up with some information before I go back o dealer? Thanks, Tom H