VG33e rebuild

[jxaguirre]

I need to repair my 1999 Pathfinder engine, it's a VG33E, blue smoke at start up, 400,000 km. Question:

Is it better to put new cylinder liners and put original size pistons? or to rebore (hone) the cylinder wall and put oversize pistons?

Thks

Juan

[smj999smj]

Are you sure you just don't have leaking valve seals or worn valve guides? If you've confirmed with a cylinder leakdown test that the rings are bad, I would look for a used engine (VG33E's are fairly inexpensive...check Ebay). If rebuilding is set on your mind, first you need to have the bores measured; you may just need them honed and have new rings installed. If they are in need of reboring, I would go with oversized pistons rather than sleeving.

[disallow]

Have you done a compression and compression leakdown test to determine what is actually worn out?

How dirty and gummed up is your valve train?

t