Karen Magistrelli (207.200.116.71) - Fri Mar 10 12:03:10 2006

We have rebuilt our Geo Metro engine. BEFORE the re-build the car blew out massive clouds of smoke when the engine was under stress. Now it is blowing constant smoke and there is oil blow-back coming into the air filter.

Reply #1 Steve McFarland (198.208.159.20) - Sat May 20 11:23:34 2006

Response:blowing smoke after rebuild: in the reassembly of the engine, you needed to be sure that the open ends of the piston rings do not line up. Check that the oil ring fit well. Hopefully, you honed the cyclinders a little so the new rings could seat themselves to the renewed cyclinder walls. The valve stem guides should of been replaced. The valve stem should of been measured to determine if they needed to be replaced. It sounds as if compression is escaping the cyclinder after burning oil in the fuel mixture (oil from around the valve stems,(hense the clouds of smoke coming out the exhaust all the time) pressuring the crankcase pushing the oil ladened air thru the egr valve and the crankcase vent tube that is connected to the air intake. I would say that you need to do a teardown and re-check things. Note: if you do a ring job on the engine you better do a valve job. the new rings will increase the vacuum and actually pull the valves down a little(old valve springs)and suck oil around the valve guides. best of luck.

Reply #2 Ed (66.44.218.120) - Sun Mar 16 14:39:00 2008

I need some help from the group. I own a 1992 Geo Metro 5spd manual, hatchback. The frame is totally gone underneath, but it has a new motor. I purchased a 1996 Geo Metro LSI with good Body, but blown motor. The motor runs, but NO power and lots of banging.

Question, can I swap engine and transmission from car to car, even though one is a 1996 with they started the electronic OBII stuff? I am not knowledge of engine and my neighbor an I will attempt to swap engines and transmissions tomorrow. Can someone tell me if that will work? They are both 1.0 liter engines.

Thank you

Ed

Reply #3 jane (71.142.216.241) - Thu May 22 14:52:51 2008

i am in the same boat with ED (reply #2), we want to swap a good engine from a 1992 engine into our 1996 geo metro, but the housing around the end of the oil pan doesn't have the correct hole for the "counter". a friend says this can be remedied. does anyone know how?

Reply #4 tyler (71.59.182.127) - Mon Jul 28 03:10:56 2008

hi if you are just swaping the motors that is ok i took the motor out of my 91 and put it in my 95. i removed the intake and exhaust and zip tied them back and changed the pans and the 95 runs like a champ.

Reply #5 Shan (89.189.136.207) - Mon Jul 28 06:17:22 2008

Hi, yep, there's nothing awful in flipping engines :) Pimp yo ride!

Reply #6 wayne scheineman (38.114.210.38) - Wed Sep 24 10:27:39 2008

Same thing happened to me after rebuild, I discovered the oil restrictor in the block had fallen out during cleaning at machine shop after the fact. The restrictor regulates lubrication to valve train and prevents excess oil build up in valve cover. Without this restrictor in place excess oil build up exits valve cover thru breather tube into intake.This restrictor is located in oil galley between head and block.

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