Hello,
I've got an old Subaru 1800 Outback (EA81) from ~1990, the clutch was all messed up so i had to take the engine out. When I now got the engine back in I spotted a big problem.
The engine will work normal a sertain time, it runs well and sounds perfect (no muffler ), but after some time the engine will start to run bad, to keep it alive i have to pump with the trottle and the choke. This will continue some time and then suddenly the car works perfectly again.
The problem is not regular, it just pops up (its between 1 and 20 minutes between the fenomen)
I would be very glad if you could answer this Thread as soon as possible because im in need of the car
// Axel Grapengiesser