I want to be sure.

james hitchcock

james hitchcock

Well-known member
I am getting ready to replace the oil in my 31. It'll be the first time it's gets new oil in about 14yrs. (it's been setting for a while) All gunk and goo has been removed and gaskets replaced. What oil is recommended ? Any help will be appreciated.
James.
 
Wow this will surely start a few responses. I personally run Valvoline straight 40 wgt. oil. In this case because of the long period of time since the last oil change you may even want to put in fresh oil then run the car for a few miles and then change it again. The "All Gunk & Goo" kind of scares me though.
 
Would he want to stay away from a "detergent" type oil being it is an old engine? May not want to clean out everything with detergent oil. I am not an expert on this subject so don't take my comment as the way to do. I just have heard that on an old engine you may not want to clean it to good.
 
Fred K-OR said:
Would he want to stay away from a "detergent" type oil being it is an old engine? May not want to clean out everything with detergent oil. I am not an expert on this subject so don't take my comment as the way to do. I just have heard that on an old engine you may not want to clean it to good.
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Fred, I need some good, strong solvent for my wash tank, it sounds like the detergent oil you mentioned might be just what I need. What kind have you found to be the best for cutting through old grease and sludge? I want to clean out everything like you mentioned.
Ron
 
DELO 15 -40 it is a CC rated oil so it has some zink. I think I would put in some discount oil in and drive it a few days and flush it around and see if it comes out clean. you can always use it in the lawnmower or a beater car.
 
Thanks for the responses. Also when I said I cleaned out the gunk a goo I meant the stuff that had settled at the very bottom of the pan. With the pan off I looked up and everything looked nice and new.
 
Whatever oil you use, change it after 100 miles. This will ensure any loose stuff gets flushed out. Really, the bottom line is that any oil is good oil. Every man and his dog has a different opinion as to which oil is best..... which means.... all of them are best. :)
 
james hitchcock said:
Thanks for the responses. Also when I said I cleaned out the gunk a goo I meant the stuff that had settled at the very bottom of the pan. With the pan off I looked up and everything looked nice and new.
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Where are you located? I would like to know because you are possibly going to need a new motor soon. When a motor sits for long periods (like years) the oil solidifies and can block flow in critical areas. I find this to be the case in many motors I dismantle for rebuild. I believe I would remove the valve cover and at the very least, try to force some diesel oil through the tubes that lead to the mains. I don't have any quick pressure unit or way to force oil through the tubes but anything that will push liquids should work. Open the valve cover (it needs cleaned also) and try to force oil down the tubes. Diesel is thin enough to come out around the mains and a small amount won't hurt the motor. This is a little amount of work for insuring the mains have oil at start up. You could also clean the valve chamber, close it back up and pour a quart down the distributor hole to fill it with the oil pan still off. After sitting overnight see if you have oil dripping from the mains. I would put a piece of cardboard on the floor to catch it and also see which mains are flowing.

Don't want to scare you but it does happen. I figure this is little work for the end result and personal security of knowing the mains are getting oil.
 
Listen to what James Rogers has to say.He is dead on to what happens to a motor that has been sitting for years.I tore down a friends motor that had been sitting for 20 yrs.Had it been put in the car and started up it probably would have lasted about 5 minutes.:eek:
 
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