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Oil leak and smoke

Tiny
BILLYHO203
  • MEMBER
  • 2001 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
Massive oil leak and lots of oil smoke from under hood. Used cylinder head installed at 93,000 miles. Cylinder three spark plug is oiled up. Thanks.
Friday, July 15th, 2016 AT 10:09 AM

12 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check compression first then remove valve cover and see if valve seal is broken otherwise you will have to get a small camera in cylinder and see if you can find evidence of a broken ring.
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Friday, July 15th, 2016 AT 12:11 PM
Tiny
BILLYHO203
  • MEMBER
  • 8 POSTS
How do I check valve seal. I am getting oil on that plug. If its a ring I will either drive until it dies or put a junk engine in.
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Friday, July 15th, 2016 AT 12:26 PM
Tiny
BILLYHO203
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  • 8 POSTS
I also did not say that I could not get proper torque on the last two nuts on the posts of the exhaust manifold. It started with an exhaust leak and sort of evolved.
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Friday, July 15th, 2016 AT 12:29 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The bolts probably stretched or are stripped out so check for that. You will have to look inside valve spring or take the spring off after putting air in cylinder to check seal.
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Friday, July 15th, 2016 AT 1:38 PM
Tiny
BILLYHO203
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  • 8 POSTS
So basically I have to rebuild the top of the motor again. That's no fun. Is there a cheat like an additive. Lucas etc?
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Monday, July 18th, 2016 AT 7:16 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
No oil additive works to stop oil burning in my experience. Besides you said you had a massive leak so check oil pressure sender may be there. If you do a compression check like I said in first reply that can tell a lot of things then adding air to the cylinder through spark plug hole can tell if leakage into crank case or valves.
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Tuesday, July 19th, 2016 AT 5:26 AM
Tiny
BILLYHO203
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  • 8 POSTS
I pressure tested a radiator on this truck. It went the next day. I've never pressure tested a motor. Can it be the valve cover? I'm losing coolant to.
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Wednesday, July 27th, 2016 AT 7:59 PM
Tiny
BILLYHO203
  • MEMBER
  • 8 POSTS
I never got the farthest stud and nut on the exhaust manifold. Could all that hot exhaust warp the gasket?
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Wednesday, July 27th, 2016 AT 8:02 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It can if the nuts aren't tight, It kind of sounds like you have a head gasket problem to me from your description, the head bolts are supposed to be replaced when a new gasket is put in. Is the head bolts what you are talking about not tightening and not the exhaust manifold bolts? You may have stripped the holes as the head is aluminum and bolts are steel.
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Thursday, July 28th, 2016 AT 5:40 AM
Tiny
BILLYHO203
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No I couldn't reach the 2 near the firewall well. 1 is gone. No room when I put an old cylinder head on.
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Saturday, July 30th, 2016 AT 5:22 PM
Tiny
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When I put the cyl head on 2 yes ago. I meant.
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Saturday, July 30th, 2016 AT 5:23 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I'll go with my previous reply as it sounds like ahead gasket problem.
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Sunday, July 31st, 2016 AT 8:06 AM

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