DLK Posted August 11, 2011 Report Share Posted August 11, 2011 Due to health issues I have been pretty inactive this summer - I haven't put 100 miles on my Dodge. However yesterday I decided to take a 40 mile r/t to visit my brother on the St. Croix. The car ran fine, temp 160, 45-50 lb oil pressure and didn't miss a beat as far as I could tell. However as I neared my destination after cruising at 50 for about 5 miles when I slowed for a four way stop there was a cloud of blue smoke behind the car and I mean a big cloud. I continued to his house and three hours later drove home but did not notice any similar tailpipe emissions. Does anyone have an idea what this was? The car has never even had the heads off as far as I can tell at 60K. I realize the rings and bearings are probably worn and I do have some smoke in normal driving but nothing like that. Quote Link to comment Share on other sites More sharing options...
knighthawk Posted August 11, 2011 Report Share Posted August 11, 2011 sounds like valve guides are a little loose. maybe needs some new umbrellas or seals...... Quote Link to comment Share on other sites More sharing options...
TodFitch Posted August 11, 2011 Report Share Posted August 11, 2011 sounds like valve guides are a little loose. maybe needs some new umbrellas or seals...... Umbrellas or seals in a L-6 engine? Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted August 11, 2011 Report Share Posted August 11, 2011 When you decelerate the engine vacuum is at its highest. If you have a lot of blow-by in the crankcase it can be sucked past the intake valve guides and enter the cylinders thus causing a cloud of blue smoke. If you run your engine with the oil fill tube cap removed how much blow-by is visable and is there any notable pulsating? When did you last do a compression check? Tod is correct there are no umbrellas or seals in a Mopar flathead engine. Those items can be found in a small block shiverlay engine as well as others. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted August 11, 2011 Report Share Posted August 11, 2011 (edited) as stated..may be time for new guides..send the county a bill for mosquito abatement for yesterdays drive and offset the cost Don, on the seals, yes but the smarter SBC owners runs the Mopar umbrellas..not them do nothing O-rings GM came up with.. I have changed a many seals int he past, head on..(OHV) sometimes these umbrellas are so hard they are like ceramic..must break them off to remove them..these are notorious over time to break with age and lead to blocked filter screen on the pick up...be careful if you do change umbrellas and find partials, do yourself a favor and drop the pan... Edited August 11, 2011 by Tim Adams Quote Link to comment Share on other sites More sharing options...
JerseyHarold Posted August 11, 2011 Report Share Posted August 11, 2011 Maybe the draft tube filter needs a cleaning to draw the fumes better. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted August 12, 2011 Report Share Posted August 12, 2011 Maybe a good rebuild..... Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted August 12, 2011 Report Share Posted August 12, 2011 like JH said, the draft tube and oil fill filter cap could be in need of a good cleaning...you want to see a modern car make oil disappear..plug the PCV.. Quote Link to comment Share on other sites More sharing options...
bobostski Posted August 12, 2011 Report Share Posted August 12, 2011 I think your car just farted. Are you feeding it Mexican gas? I know that when I have Mexican, I put out lots of blue smoke. Put some Bean-o in the tank. Quote Link to comment Share on other sites More sharing options...
DLK Posted August 12, 2011 Author Report Share Posted August 12, 2011 Maybe a good rebuild..... If money was not an issue you are right, but like others have said here since I plan to put maybe 1,000 miles a year on the car I can buy a lot of STP and oil and kill a lot of mosquitoes for the cost of a rebuild. Of course one added benefit of the rebuild would be getting rid of the cat litter and cardboard on my garage floor to pick up all that oil from the bad rear main seal leak. I will do the compression check - I have avoided that because if a cylinder comes up real low it would force me in the direction of a rebuild. Quote Link to comment Share on other sites More sharing options...
Young Ed Posted August 12, 2011 Report Share Posted August 12, 2011 Dave don't let the leaks sway you towards a rebuild. The rebuild will probably slow them but most of these flatheads leak a little no matter what. Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted August 12, 2011 Report Share Posted August 12, 2011 I think your car just farted. Are you feeding it Mexican gas? I know that when I have Mexican, I put out lots of blue smoke. Put some Bean-o in the tank. Good one. :D Quote Link to comment Share on other sites More sharing options...
BobT-47P15 Posted August 13, 2011 Report Share Posted August 13, 2011 Ai Yi Yi.........remind me to never take bobo to lunch at a Mexican place. Quote Link to comment Share on other sites More sharing options...
randroid Posted August 13, 2011 Report Share Posted August 13, 2011 dkopesky, If you really want to keep smelly blue smoke away from your car keep the car away from political discussions. -Randy Quote Link to comment Share on other sites More sharing options...
Captain Neon Posted August 15, 2011 Report Share Posted August 15, 2011 dkopesky,If you really want to keep smelly blue smoke away from your car keep the car away from political discussions. -Randy The only time political discussions are off limits are when I hold the minourity view then I am the one accused of turning the discussion political. Quote Link to comment Share on other sites More sharing options...
randroid Posted August 15, 2011 Report Share Posted August 15, 2011 Ben, I hear you there, brother! -Randy Quote Link to comment Share on other sites More sharing options...
DLK Posted August 16, 2011 Author Report Share Posted August 16, 2011 dkopesky,If you really want to keep smelly blue smoke away from your car keep the car away from political discussions. -Randy I have learned even with the family to avoid them. I am sure my family isn't like any of yours with half on one extreme and the other half on the other. Not much room for those somewhere in the middle. That has been one great thing my Wayfarer has added to the family - a noncontroversial subject for discussion. Until someone suggests I put a Chev 350 and a Mustang front end in it... Quote Link to comment Share on other sites More sharing options...
41/53dodges Posted August 18, 2011 Report Share Posted August 18, 2011 perhaps the oil filter was a little too full and dumped down the throat? Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted August 18, 2011 Report Share Posted August 18, 2011 If money was not an issue you are right, but like others have said here since I plan to put maybe 1,000 miles a year on the car I can buy a lot of STP and oil and kill a lot of mosquitoes for the cost of a rebuild. Of course one added benefit of the rebuild would be getting rid of the cat litter and cardboard on my garage floor to pick up all that oil from the bad rear main seal leak. I will do the compression check - I have avoided that because if a cylinder comes up real low it would force me in the direction of a rebuild. The proper rebuild would cure the blue smoke and eliminate irritated drivers behind you-Blue Oil smoke is kinda embarrassing in any old car or truck. Oil leaks being much less would still be there a bit! Quote Link to comment Share on other sites More sharing options...
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