The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

420A Oil in exhaust manifold?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

DumbtruckDSM

Proven Member
48
9
Jun 6, 2021
Grandview, Missouri
So I was driving my car like normal and it ran amazing. Then later that same day I decided about moving the catch can to a better location and tighten my belt more because it screeched when I turned and I noticed it was because my belt was loose.

So there I go and changed the position of my catch can and tighten the belt but I didn’t drive it that day. Next day comes and I’m going to college and I noticed when I turned it on it revved to 3k rpm and went back down, I was late to class so I ignored it and drove but the car seemed different and felt a little faster but every time I stopped it revved to 2k rpm.

I arrive at my college when my car suddenly starts shooting blue smoke and doesn’t want to go. I got it home but the smoke stays at idle then goes away and sound normal but when I rev it it smokes again and it feels like it wants to die but doesn’t, it starts right up tho like nothing.

I removed the turbo and it’s drenched in oil and I look at the manifold and I see oil in the ports, only on the 2 middle but the rest were dry. I can’t figure out what happened, all I did was move the catch can and tighten my belt???
 
You're engine is inhaling oil for some reason. Check the catch can, it may be full. The way the intake manifold is designed, cylinder 2&3 (middle cylinders) will recieve almost all oil that comes through the PCV port. It's concerning to have that much oil mess. If the catch can is filling up quickly or allowing lots of oil to pass through there is another issue. I'd check for excessive crankcase pressure and check the valve cover baffle for damage.

You must be logged in to view this image or video.

You must be logged in to view this image or video.
 

Attachments

You must be registered for see attachments list
You're engine is inhaling oil for some reason. Check the catch can, it may be full. The way the intake manifold is designed, cylinder 2&3 (middle cylinders) will recieve almost all oil that comes through the PCV port. It's concerning to have that much oil mess. If the catch can is filling up quickly or allowing lots of oil to pass through there is another issue. I'd check for excessive crankcase pressure and check the valve cover baffle for damage.

You must be logged in to view this image or video.

You must be logged in to view this image or video.
Okay yeah that makes sense, I saw that cylinders 2,3 had oil in them but 1,4 didn’t. So it’s my pcv? Not something major?🥲 I’ll put the stock pcv back on instead of the catch can. I’ll check the valve cover and crank case pressure!
 
Last edited by a moderator:
the oil in the exhaust ports and any blue smoke definitely can be explained by excessive crankcase pressure.
The 3k rpm at start and 2k idle on stop, however, is different.. but one thing at a time.
Definitely check your pressure, you can do it with a spare boost gauge plumbed into the rubber PCV line. Just replace the line after as you'll have a hole.
As you're N/A, you shouldnt be generating THAT much pressure. If you are, you've got excessively worn rings.
 
I'll add you may have also popped some valve stem seals, that's where I would be looking first.
I thought that too, but 2&3 at same time, with constant smoke seems more like stuck (or removed) PCV - especially considering the patients history of catch can relocation
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top