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| | | | Joined: Dec 2003 Posts: 1,061 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,061 | I haven't run into this before, buy I have oil dripping from the exhaust manifold at hte gasket.
Any thoughts on whqat is wrong?
Thanks
1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
| | | | | Joined: Jul 2007 Posts: 293 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2007 Posts: 293 | What year and what kind of engine do you have? | | | | | Joined: Jun 2009 Posts: 2,201 Shop Shark | | Shop Shark Joined: Jun 2009 Posts: 2,201 | If it is truly coming from the exhaust, then you should have a blue smoke from the exhaust. Pull the plugs and inspect for oil fouling. If your exhaust is clean and clear then most likely the valve pan is leaking and just running down and around. | | | | | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | Sure it's not just a black water trail, condensation, coming from an exhaust leak?
Scott | | | | | Joined: Dec 2003 Posts: 1,061 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,061 | OK, it is a 216 in my 52 Chev, 1 ton.
Exhaust smokes blue, plugs are black.
I have three spots on the block where there are drips building up.
In a recent valve job, I replaced the valve seals, used NOS valves, ground and lapped them but did not knurl the guides. I suspect either the valves are leaking oil into the cylinders or the rings are bad.
1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
| | | | | Joined: Jun 2009 Posts: 2,201 Shop Shark | | Shop Shark Joined: Jun 2009 Posts: 2,201 | either of your suspicions could be right, I would suspect the rings. neither is good news unfortunately. | | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | Thats not good news Mike.
I know where there is a 235 in MN if your interested.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
| | | | | Joined: Dec 2003 Posts: 1,061 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,061 | Scott,
I have one located in Freedom that I was going to rebuild last spring. I decided to try and save the 216 and not to go through a rebuild but it looks like it is not going to work out. Strange thing is I had good compression after the valve job. All except one at 120 and one at 110. Not the best, but acceptable. I will do another one when I get a chance and see what, if anything has changed. Also there was almost no ridge in the cylinders when I had it apart. I didn't bother to mic them at that time and it looked like they still had some cross hatching on the walls from a honing.
1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
| | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | valve guides would show good compression, yet leak oil from the top. So would bad valve seals.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
| | | | | Joined: Dec 2003 Posts: 1,061 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,061 | That makes sense. Valve closed, cylinder sealed, Valve open and oil can flow into the cylinder from the head. Gues I have to decide if I want to re-do the head and try it or just rebuild a 235.
1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
| | | | | Joined: Sep 2009 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2009 Posts: 46 | Mike did you ever get this fixed???
Jaime | | |
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