Hello forum. First time poster here and a proud owner of a 1975 BJ in central Luzon, Philippines. I have gone through alot on this truck in the last month (brakes were 90% replaced and the most aggravating experience of my life) but researching here provided an endless wealth of knowledge, thank you guys.
Onto my next challenge and not finding alot of info is the smelly, dirty old road draft tube found on what I believe is a 1980 1B in my truck. It releases quite a bit of oil onto the floor after a good drive. Originally, it exited right on top of the front drive shafts and the u-joint became an oil slinger. I later attached a rubber hose and connected it to the frame to allow the oil to exit more onto the roadway instead of my driveway. I have had old Chevy stove bolt 6's with the draft tube and the oil seepage was minimal. This is excessive on the BJ. It is leaving silver dollar puddles everytime it is driven and parked. I have driven probably some 200 miles and have checked the oil and it is within specs on the dips tick but is getting a little low. I originally thought it was because I filled it to the high spec on the dipstick the day I got her home and did an oil change and the excess oil was exiting the draft tube. But the leak persists.
This BJ 1B has no PCV as I understand it was not original to the engine but I am now considering an installation of one to help eliminate this problem. I have a constant *puff puff* of steam/ whitish smoke coming from the tube at idle upon warm up as well. I have read that this is an indication of excessive high mileage and the valve seals/ rings are nearing their life span even though my original gauge indicates very good oil pressure. I have not performed a compression test/ leak down test as of yet.
I guess my question is, what is the best way of stopping the oil leak right now. I don't really want to put a catch can down there on the draft tube. I want the oil to stay inside the engine permanently without further maintenance. Looking at the draft tube itself, it looks like a poor design. It comes straight out of the engine block and heads immediately down. To me, it seems as if it made a small vertical incline and then headed down, it would make it much less likely for oil to escape. I am thinking of removing the tube aND doing some brazing surgery with an angle piece of copper tubing. Are these tube pressed into the block? Can they be removed and replaced without causing further woes? Thank you to all for your insight.
Onto my next challenge and not finding alot of info is the smelly, dirty old road draft tube found on what I believe is a 1980 1B in my truck. It releases quite a bit of oil onto the floor after a good drive. Originally, it exited right on top of the front drive shafts and the u-joint became an oil slinger. I later attached a rubber hose and connected it to the frame to allow the oil to exit more onto the roadway instead of my driveway. I have had old Chevy stove bolt 6's with the draft tube and the oil seepage was minimal. This is excessive on the BJ. It is leaving silver dollar puddles everytime it is driven and parked. I have driven probably some 200 miles and have checked the oil and it is within specs on the dips tick but is getting a little low. I originally thought it was because I filled it to the high spec on the dipstick the day I got her home and did an oil change and the excess oil was exiting the draft tube. But the leak persists.
This BJ 1B has no PCV as I understand it was not original to the engine but I am now considering an installation of one to help eliminate this problem. I have a constant *puff puff* of steam/ whitish smoke coming from the tube at idle upon warm up as well. I have read that this is an indication of excessive high mileage and the valve seals/ rings are nearing their life span even though my original gauge indicates very good oil pressure. I have not performed a compression test/ leak down test as of yet.
I guess my question is, what is the best way of stopping the oil leak right now. I don't really want to put a catch can down there on the draft tube. I want the oil to stay inside the engine permanently without further maintenance. Looking at the draft tube itself, it looks like a poor design. It comes straight out of the engine block and heads immediately down. To me, it seems as if it made a small vertical incline and then headed down, it would make it much less likely for oil to escape. I am thinking of removing the tube aND doing some brazing surgery with an angle piece of copper tubing. Are these tube pressed into the block? Can they be removed and replaced without causing further woes? Thank you to all for your insight.
