Engine blue smoke after engine swap?

2005 HONDA CIVIC
180,000 MILES • 1.7L • 4 CYL • 2WD • MANUAL
Avatar
NIK1234554
  • MEMBER
  • 4 POSTS
After i changed the motor for a good running one and after i put it in my car after like one hour of driving it was doing the same thing.

How can I fix this problem?
Jun 23, 2023 at 7:44 AM
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
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
It could be the oil from the last engine is still burning off inside the exhaust system, I would keep driving it to see if it gets less and less in time.

Here is a guide that can help as well:

https://www.2carpros.com/articles/blue-smoke-from-engines-exhaust

Please go over this guide and get back to us.
Jun 23, 2023 at 12:17 PM
Advertisement
Avatar
NIK1234554
  • MEMBER
  • 4 POSTS
i drove it for 4 hours and it the same thing. plus, i removed the spark plugs and there was some oil on the cylinder.
Jun 23, 2023 at 12:42 PM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
It sounds like the new engine has the same problem as the old engine. It sounds like the cylinder with oil has a broken oil control ring. But I would replace the PCV valve in case the spring is broken, and it is sucking oil in. Check out the images (below). Please let us know how it goes.
Jun 24, 2023 at 11:09 AM