My 2007 XC70 had what I think is a small head gasket leak. Combustion gases were pressurizing the overflow tank, pushing the fluid level down. Opening the cap allowed the level to return. I used a combustion gas tester to make sure that was what was happening. The engine never overheated.
The head is off the car now, and I’m trying to decide whether to send it to a machine shop or not.
About 30k miles ago, something got into a cylinder and damaged one or more valves. I now think that the “something” may have been a part of a banjo bolt in the PVC system. As a result, a shop pulled the head and sent it out for a valve job. Since it has had this recent valve job, is it needed to send again to a machine shop? The valves look fine to me. Should I just clean it up and put it back together?
I’m not very familiar with what machine shops do. If it is recommended that I take it to one, what would I ask them to do, besides cleaning? Pressure test? Check the valves?
Also, if so, does anyone recommend a shop in the NW Chicago suburbs?
Thanks!
BrickDriver
Bookmarks