Super 88.

I'm not sure what's going on here, but it looks like oil spewing out of the exhaust.

From the research I've done, this could be carbon mixing with the condensation, but I'm not sure how to go about fixing this problem.

Any ideas?

I can get some pics after work.

 

How much oil is engine using? Is the tailpipe oily, or dry and sooty after this happens?


Are you getting anything out of the road draft tube? I ask because if that arrestor thing in the lifter valley is gunked up the engine crankcase may not be breathing properly and could be forcing ring blowby out the tailpipe.


My guess is this happens before engine is completely warmed up and you have a slightly rich carb condition, either from choke or rich idle mixture.


My recommendation is put a few gallons of REALLY good fuel (or add some SeaFoam) in the tank, drive it 10-15 miles and then nail it hard a few times- a few hard acceleration 30-60 mph runs should blow out excess carbon. Doesn't hurt an engine to do this a few times a year either.

 

There were actually two kinds of road draft tubes on these cars. Some were just a straight pipe. The others actually had a filter near the end of the tube. I think the filter is separate and the tube slides into it. It often become clogged. I would take off the road draft tube and see if you can blow through it. You can probably clean the filter out with some PB Blaster and let it soak and then take a water hose and wash it out. I have seen people cut them open and replace the filter with a Brillo pad and then weld them back up. I hope this helps. Good luck. Here is a link to jalopy journal that shows the picture.


http://www.jalopyjournal.com/forum/d...7548650a01.jpg

 

If the down draft tube was plugged there would be blow by/smoke coming from the oil filler cap and the stink would be very noticeable from inside the car. I would think it's probably condensation mixed with carbon and some oil as mentioned by Rocketraider... Tedd

 

Good point Tedd. I don't disagree.

 

In addition to driving it for a while and blowing it out, check/change the oil filter breather cap. Stant #10061, NAPA #7031707, Gates #31061, etc.

Frank

 

The cap is probably just fine. I've never seen one that has become clogged to the point that a good washing with gas wouldn't clean it out. These caps are made to be washed in gas the insides are some kind of coarse steel wool the rest is just a metal can... Tedd

 

Tedd, do you really wash with gas? Way to dangerous for me. I would use a solvent like kerosene or something with a lower flash point. I personally think you are asking for trouble using gasoline for a solvent.

 

Yep used gas for years. If you think about it we use lacquer thinner, MEK and acetone all the time with no issues. They all have a faster flash point than gas. But then again I was in the specialty coatings business for 43 years, perhaps I'm just a little calloused to the hazard..... Never once blew myself up with solvents, gunpowder well that is another story.... Tedd

 

I degrease everything in gas. Wheel bearings, engine parts, brake drums, etc... never any issues. The reason they did not want you to do it many years ago is most of us did it without gloves and they realized lead is bad for your body.

 

I am glad it works for you guys. I have used kerosene since I was a kid fiddling with lawn mower engines. For years I bought it for 25 cents a gallon out of one of those old square tanks with the crank handle. At that time, nobody gave any thought to lead in gasoline coming in contact with our hands any thought.