Correcting scratched cylinder

2003 NISSAN SENTRA
85,000 MILES
Avatar
JCARNES
  • MEMBER
  • 1 POST
So my 2.5L Sentra SE-R has been burning a large amount of oil (around 1 quart/week). It is definitely burning oil and not leaking as there is no evidence of oil in my garage and there is some black buildup around the exhaust. I have taken it to my local shop and they found a scratch in cylinder 1 that is causing this oil consumption. This looks to have happened when the catalytic converter went out and pieces of this were sucked into the engine (which appears to be common on this engine).

I was told that my only option is to replace the engine. Now my question is if I realistically have any other options? Such as honing the cylinder or maybe even boring the cylinder out and using larger pistons or rings? Now I know it is impossible to say for sure without seeing the damage yourself but is this something that I should be looking in to or is there no point?
Jul 5, 2012 at 9:25 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check the compression for no.1 or do a leakdown test on it-could be the valves or rings/cylinder wear- this will tell you what you need to do-rebuild the engine or go with a used one-
Jul 5, 2012 at 9:32 PM
Advertisement