Having searched this forum for the last few months.I have a few things I don't understand.I have a 88 7M-GTE 60 trim Turbo,lex afm.550 inj.walbro. ect. Recently rebuilt .020 over bore.about 500 miles or less.MHG by previous owner. no EGR,PVC. after mkt.intercooler.apexi bov? all the electronics Safc,timer and boost controller... Now for symptoms. At 1st smoked between shifts (blueish) any RPM or boost. Than one day smoked at idle very bad whitish blue. than almost always at decel so bad that I hated to drive it,but ran OK.I moved catch can from fender by turbo to front of radiator. I had some oil in front of turbo intake,accordian hose and AFM.Blowby was my 1st concern.Comp test all at 180-190 # 3 @130 Aha! add oil, 190 now .couldn't get a pressure tester to hold. (Home made) long story short. Pulled head NO BHG! ARP studs at about 80-90LBS looked good. BUT... Cylinders look like the rings never seated.I will try to post pics. some rust and a couple places looks like rings were forced into wall.So I need help or suggestions. Turbo seals?No PVC ,Not broke in? I have one old piston and ring set and it goes in easy but has some resistance or suction.tommorrow I will have a friend check bore.
Last edited:
