OK haven't done any engine rebuilds or anything but need some help.
Got a 258 in the 73 CJ I bought, they said it was out of an 83 and the guy before him had started the rebuild, they had finished the assembly though. He basically said they had to use a real heavy weight of oil(couldn't remember exactly) to keep pressure. The motor runs pretty good but it smokes pretty good, OK at a stop it fogs every mosquito for 5 miles. :) Assuming that there isn't anything major what could this be. It seems like it could be a problem with the rings but not sure. My thought on this is I can play on this motor and maybe fix it and if I don't I can sell it for parts and not be out anything.

Thanks for the info
Kris

OK, Here is the rub, BUB...

Most of the time when someone says, "Skeeter Killer" it's one of three things...

1. Bad valve seals.
These can be fixed with out taking the head off the engine.
The valve seals are on the valve stem inside the valve spring coils. They are made of a durable rubber substance or Teflon if they are good quality.
If they aren't such good quality, or they weren't installed correctly, they will let oil get down the valve guide into the intake, and into the cylinder.

2. Drawing Oil into the intake.
If you are getting oil in the intake tract, via the PCV valve or by some other device, this will make lots of smoke.
(Over filling the oil, or having oil drain back holes in the head plugged will cause this too.)

3. Leaking piston rings.
If the piston rings are that shot, a compression test will show it up right away.
The only way to fix that is with an engine rebuild.

Heavy Oils...
15W40 or 20W50 in the summer,
10W40 in the winter months.
Don't forget a good oil filter.

If you need more answers or help, leave me a message.

OK I realize a FSM will explain most of this in way to much detail for me, but I don't want to spend $100 for a book I won't use after this(remember just playing and learning). Are there any websites that are good generic info on rebuilding.

Thanks
Kris

Originally posted by Blitz
OK I realize a FSM will explain most of this in way to much detail for me, but I don't want to spend $100 for a book I won't use after this(remember just playing and learning). Are there any websites that are good generic info on rebuilding.

Thanks
Kris

If you don't want to spend the money on a FSM, how much do you expect to spend on a rebuild?
Generic info on rebuilding can be found in any bookstore on the shelf, and probably on the shelves of the discount auto parts stores.
PS, if you are thinking of rebuilding the eng, then you need something a little more specific than a "generic" book on rebuilding.

Here's the thing I don't plan on using this motor at all or one in the future so a FSM for it won't do me any good after this one time. Basically I want to learn the basics that are applicable on any motor not the intricasies of one motor. When I get to rebuilding the motor I intend to use I'll probably end up with 3 or 4 books on it since I learn most of my stuff through reading.

Thanks
Kris

Search this site for a book that will satisfy you.
www.barnesandnoble.com