Bobbin thread I have an older Consew 105, and the thread isn't catching the bobbin thread.

needle threaded from wrong side perhaps

Not sure what is causing this. Was it OK before or has ut just started doing this? Did you recently buy new bobbins?
But make sure that the bobhins you are using are flat or a little concave , whichever it is for your machine.:)

Check the bobbin tension. You might have to turn the screw on the spring that guides the thread through the bobbin. Also could be thread quality, but check the bobbin tension first.

THREAD TENSION ADJUSTER IS A NUMBERED KNOB WHERE YOU PASS THE THREAD BETWEEN ""TENSION WHEELS"" IN
FRONT OF THE MACHINE VERY NEAR AND ABOVE WHERE YOU THREAD THE NEEDLE

Your machine probably needs to be adjusted and timed. But make sure you clean under the bobbin area before you try again... or take it to a machine pro

http://www.sew4less.com/index.php
I don't know if the link will work for the bobbin case, if it doesn't
go to sew4less.com
Bobbin Case # 52237 NB, Click for model info.
Product #: 4754

Price: $ 19.95


Bobbin Case # 52237 NB, No backlash type.
A bobbin case, also known as a bobbin holder or bobbin shuttle, holds the bobbin that is filled with thread.
Each machine has a specific bobbin case. # 52237NB
Brother 755 Brother B714 Brother B735 Brother DDL-227 Brother DDL-555 Brother DL-5550 Consew 103 Consew 104 Consew 210 Consew 230 Consew 231 Consew 7360R Consew 99 Consew CN 223OR Janome / New Home 764 Juki DDL-227-L Juki DDL-5530 Juki TL98E Kenquilt 622 Singer 1300 Class Singer 1400W Singer 188K Singer 191U Singer 195K Singer 196K Singer 241 Singer 245 Singer 251 Singer 281 Singer 291U and more!

here are is a site that have manual
http://www.sewingpartsonline.com/

I can not get the top thread to pick up the bobbin thread on a machine I have just bought .It was sewing fine and then the bobbin ran out. I have tried every which way but nothing works which way should the bobbin be winding

Insert the bobbin case without a bobbin to see if it will go all the way into the locked position. If it does,the bobbin case and basket are okay.
Check inside the bobbin basket(where the bobbin goes) and see if there is thread or lint wrapped around the spindle the bobbin case sits on. If there is, remove it. If there isn't ,then the bobbin is probably sprung and needs to be replaced.
sewman7

Check the condition of the top pressure discs and the bobbin case tension. Check for wear in the hook - is the bobbin case seated correctly? Check the tension spring in the bobbin case. I doubt timing has anything to do with the problem. Unless the hook's picking up the top thread a little late, thereby "spearing" the thread. The hook could be catching the thread loop too late. Sounds to me like there's a parts or a small adjustment problem. You don't mention thread or needle size. That's another area of concern at times.

Divot on needle must be installed facing bobbin case.