Hot answers tagged exhaust
You have two separate issues here. First, you have what I would think is leaking valve seals. When you slow down, there is a great amount of vacuum build up inside the intake track. With leaking valve seals, this will pull oil past them and down into the intake track. This gets pulled into your engine when you speed back up and causes the blue smoke. ...
Soaking in WD-40 or equivalent will help, but the real final measure is first a blowtorch - even a cheap and not-very-powerful one will do - followed by impact wrench. Alternatively, you can buy hydraulic tools but they will probably snap the bolt leaving you with one more problem to solve.
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