My Intrepid is broken again, big shock. This time it's been fine running after a cold start but gradually, more and more slapping from the timing chain happens. I haven't driven it in nearly 5 months out of an abundance of caution but I wanted to ask if it was something that I could tackle myself in my garage. I'm super nervous about messing with the timing on it and I know it could just be a tensioner but Im replacing the chain, guides, and sprockets as well because its got 121k miles, and it's probably time anyway. I haven't done any major mechanical work like this before so I was wondering if this was something that would be good to get my feet wet with.
I was also more or less concerned about doing the valve seals while the chain is off (because I believe that they are bad and causing some noticeable oil consumption) but after reading up on the repair procedure, Im relatively nervous about using 90-100psi of air in one of the cylinders. Is it possible to get to replace the valve seals without having to use compressed air?
Oh 2 more things, are there any special tools required for either of these tasks besides the timing chain tensioner tool, and is there any work that I should do while Im in there? Just trying to be prepared before diving into this project. FYI the water pump is updated and was changed 50k-60k miles ago.
Thank you for your time!