piston rings
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New User
Joined: Jul 2003
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piston rings
hey guys, i got a 1985 bronco II 4x4 2.8L and i took it in for a tune up to my nephew who owns a mechanic shop, he said that the piston rings are shot and thats the main reason that why when ever i start it is spews white to blueish smoke out, but never when in motion, it has a small oil leak and ever 2 months about i have to fill it back up. so my nephew told me not to invest in it and just drive it till it dies. so i am wondering if replacing the rings are a cheap and easy thing to do???
thanks for your help
thanks for your help
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
piston rings
Normally that is not a ring problem but a valve seal/guide problem and the white smoke could be indicating a head gasket problem also. Bad rings will show up as blue smoke under acceleration and lots of blowby into the PCV system. Valve seals are relatively cheap to fix. Valve seals that leak a little more will usually show up as a blue smoke when you decelerate. If you have a head gasket problem the fix is relatively inexpensive and the problem can get drastically worse quickly. Rings are an expensive repair option. If it is a gasket or seal problem I would get it fixed, if it is the rings drive it until it drops.
Freshman User
Joined: Apr 2003
Posts: 44
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From: Paris,Ky
piston rings
When (if) it does drop-- stick a 4.0 in its place! Junkyard engine and all related wiring would be cheaper than rebuilding a 2.8, plus the power gain is about 40%.
With this info may we concur that you don't drive it more than a thousand miles in a couple of months?
Back in the 70's when I was associated with FoMoCo as a line mechanic(now refered to as a "technician") service standards were if an engine used less than 1 quart of oil per 1 thousand miles it was AOK 2 quarts would get you a"watchlist marking", meaning that we would monitor you oil useage for 4 thousand miles and hope the warranty expired!
3 or more quarts would get you a rebuild.
it has a small oil leak and ever 2 months about i have to fill it back up
Back in the 70's when I was associated with FoMoCo as a line mechanic(now refered to as a "technician") service standards were if an engine used less than 1 quart of oil per 1 thousand miles it was AOK 2 quarts would get you a"watchlist marking", meaning that we would monitor you oil useage for 4 thousand miles and hope the warranty expired!
3 or more quarts would get you a rebuild.
Last edited by rmyers2051; Jul 6, 2003 at 09:55 AM.
