pappabear69
Junior Member
Ok so here I go, know I had a lifter cam issue, tore apart. Replaced timing chain and all its components. #1 cylinder at top, not sure if it matters when at top in stroke process. Marked both dots with paint, installed chain with cam at 12 and crank at slightly before 6. This enabled new chain marks to fall perfect, splitting double marks at cam and on mark on crank. Installed tensioner and guide. Reverified marks/ chain marks, all good. Reassembled everything. Truck missing and white smoke, head gasket. Tore heads back off checking that lifters were indeed correct for mds. Started again no more smoke but still rough idle and now slight backfire. Rechecked rods again and just for my head, replaced all coil packs and plugs. Still same issue, cranks fine but misses. Any help would be appreciated, gonna pull apart to check timing again, but sheessshhh.