Hello people. Long time no see
So... I bite the bullet once again and bought another soobie with a known problem. This time a '01 Legacy L with 180K miles on it and leaking *everything* (according to the inspection the previous owner had a month or so ago). The P.O. mentioned the car overheated once, and the shop he went to charged him $300+ to replace a hose close to the back of the intake manifold but told him the left head gasket is leaking coolant, there's oil leaking, power steering, etc.
Anyway... I'll be replacing the head gaskets and I have read a few threads about the components I can expect to be replacing, with the list varying from just head gaskets to a long list including seals and whatnot.
Question #1: Since I plan on work on the engine outside the car, and the heads will be out anyway, I was wondering if it makes sense to buy one of the kits including valve seals. I'm guessing at 180K those may be close to the end of their useful life, but I may be wrong. Replacing valve seals implies replacing the valves themselves as well, right? Is there any other service that I should do/have done on the heads while they are out? How much can I expect to pay a shop for checking the heads and replacing the valve seals?
Question #2: Beside the head gaskets I'll be replacing the timing belt-related stuff, including water pump. I installed a kit from ebay (Mizumo) on the EJ22 I put on the outback, but since the EJ251 is interference I don't want to take unnecessary risks. I'm considering buying the Gates timing belt components from Rockauto, but I don't know if there's a significant advantage in getting an Aisin water pump (WPF-002, probably from Amazon) vs just getting the one coming with the kit from Gates. Do you people have any preference, or are they all the same?
Question #3: If it's not broken don't fix it. Except for... ? Maybe cleaning the EGR? What else?
Thank you in advance!