Problem....the air filrter is usually full of gas..what can couse that ? how can gas reach the air filter ? Plus...the motor consumes alot of oil...
What the gas in the air filter means ?
Why did she consumes that much oil?
This is exactlly my car with the diffrence that mine has 5 doors..Datsun Sunny 120Y...B310..A13 engine
http://www.ratdat.com/mycars/mycars/mar758v.jpg

fuel in filter? Running Rich.

Oil consumption? Oil leaks or smoke out the tailpipe?

The air filter should never be wet with petrol. Replace the carby if you can easily get a spare.

It's a carby in the end!!, not fuel injection.
There is no 02 sensor, no ping sensor, so if you pump away on the carby under acceleration, you'll overfuel the engine, and there'll be lots of fuel smells hanging about.

I hope my input has helped out.

Chris

"Oil leaks or smoke out the tailpipe?"
Both :) very much smoke when i start the engine and oil leaks from the sparks..d`ont know the work...besides the sparks...hope you`ll understand.
Somebody told me that the engine doe`s not have enough pressure...segments...i`m confused....
It may be running rich..there are -10 -5 degrees outside and i have to start with the choke and to pump alot of gas....

Is it definately fuel on the air filter? Your sure it isnt oil, as in lots of blowby from the rocker cover breather?

It`s fuel

not enough pressure = compression test failed.

oil coming out of the spark plug holes.. oh man, it's time for a rebuild. This is not something that is quickly or easily fixed.

Maybe the oil in upper cylinder, has created a build up of junk, so intake valves don't seal, and on compression stroke the engine blows air back up the intake into the carby..

Does the engine have very low power? And rough/unsteady idle?

yes.....low power endded..when i bought it it worked better..now it is very lasy..where could i find some rings for it ? i guess it`s time to change the rings...

If the engine is tired, & the compression is low,... low enough for you to dismantle the engine for ring replacement, then maybee you should give it a minor overhaul. This was often refered to as a "ring & valve job.

to do this you will need ti dismantle the engine the same as for rings only, then you

Hone the bore to at least partly restore roundness & to restore the cylinder wall texture that allows the rings to bed properly

Replace the rings. My first choice preference in this situation is for Molly filled rings if they are available, or cast iron rings if they are not. I don't like chrome rings in anything other than new bores as the rings are round, but the bores may not be & they take a long time to bed in.

Replace the big end bearings. This will ensure that there is no excessive clearance here, maintining oil pressure.

Strip & inspect the cylinder head. If the valves & seats are good, then just lap the valves, but if they are outside specs, then have the cylinder head overhauled.

This will restore full compression pressures & most, if not all, of the original performance that this engine produced.

All of the above is dependant on the engine being in basicly sound condition, & not completely worn out.