hi need help with this part cat 22 crawler zenith carby

Its not that part that is keeping it from running. All that is a breather. You could take that clear off and it wouldn't make a difference.

Is the float in good shape, no holes?
Is the float free, that is, not stuck?
[attachment=23084]IMG_20140502_123236.jpg[/attachment]
Is there a small lever in the vicinity of the arrow? If so, open it one turn and see if fuel leaks out.
Do you have priming cups on the intake manifold? If so, have you put a little bit of gas in them before you cranked it.

Good luck.
Pete

Is the float in good shape, no holes?
Is the float free, that is, not stuck?
[attachment=23084]IMG_20140502_123236.jpg[/attachment]
Is there a small lever in the vicinity of the arrow? If so, open it one turn and see if fuel leaks out.
Do you have priming cups on the intake manifold? If so, have you put a little bit of gas in them before you cranked it.

Good luck.
Pete

[quote="Peter C"]Is the float in good shape, no holes?
Is the float free, that is, not stuck?

Is there a small lever in the vicinity of the arrow? If so, open it one turn and see if fuel leaks out.
Do you have priming cups on the intake manifold? If so, have you put a little bit of gas in them before you cranked it.

Good luck.
Pete[/quote] [attachment=23085]IMG_20140502_154257.jpg[/attachment] hey peter yes theres plenty of fuel in the bowl , no holes in the float , fuel comes out when i open that small lever at the front ,doesn't seem to be any primers anywhere , we noticed when we hand crank to start it , it seems to almost start on the first couple cranks but then the crank is alot harder to turn and the smell of fuel is strong like its flooding very quickly ,maybe our fuel floats out of adjustment ?dad reckons its got spark he checked ages ago , we are going to check the spark plugs when we find a socket big enough to remove them (i know there very old), this little guy from memory is number 14 i think dad said its a 1935 ,either way shes old lol , any idea about the mixture and float level screws ? for adjustment ? cheers muz

Hi muzza,
the top "mixture?" screw is for Low Idle --these can be either an air bleed screw --in to richen--or if a fuel flow --out to richen--I am sure you can now work it out.

The lever looking thing at the bottom left of the float chamber in your last pic is the bowl drain screw.
If gas drips from this either the needle is not seating properly or if it has a packing, that is likely worn out by now. The smaller nut inside the larger one should be a packing gland adjusting screw/nut. To re-pack this you could use a piece of string type packing material from some pump packing or a piece of mop string that has been drawn thru some softened bath soap.

The main jet is marked "Float?" in your pic above.
It works as normal--out to richen.

Normal setting point to work from for both screws would be 1.5 turns out from closed--screw in gently to seat then out 1.5 turns.

The filter thing you first asked about is to drain excess fuel from the manifold to help prevent flooding the engine.
It should have a felt pad under the screen to filter out dirt from entering the intake--usually the pads are almost rotted away and not effective by now.
Sorry cannot help more as my books are in storage this week due to painters in, so this is from memory.
Hope it helps.
Cheers,
Eddie B.

thanks very much to everyones help so far cheers guys

Re-Reading your 2 posts, I think new Sparkplugs with Spark verification should be a priority as well as setting the Mixture screws to there proper starting points.
Why?
As near as I can figure out, you state it tries to start on the first couple of cranks, then the smell of gas/petrol becomes very strong.
If you have poor sparkplugs, you could have the correct mixture settings but be flooding your plugs out.
Stating that Dad verified Spark ages ago is a very poor answer when troubleshooting a non-running engine!
You need to get those plugs out, verify spark!
PLUS! Verify that the sparkplug wires are timed correctly between the cylinders and the magneto!
Then go back and fiddle with the carb by first setting it to initial starting values for the screws.
BTW, Everyone complains about fuel quality, how old is yours?

[quote="drujinin"]Re-Reading your 2 posts, I think new Sparkplugs with Spark verification should be a priority as well as setting the Mixture screws to there proper starting points.
Why?
As near as I can figure out, you state it tries to start on the first couple of cranks, then the smell of gas/petrol becomes very strong.
If you have poor sparkplugs, you could have the correct mixture settings but be flooding your plugs out.
Stating that Dad verified Spark ages ago is a very poor answer when troubleshooting a non-running engine!
You need to get those plugs out, verify spark!
PLUS! Verify that the sparkplug wires are timed correctly between the cylinders and the magneto!
Then go back and fiddle with the carb by first setting it to initial starting values for the screws.
BTW, Everyone complains about fuel quality, how old is yours?[/quote]
hey mate , yeah fuel is brand new , we took the sparkplugs out , they were abit oily but we cleaned them up , in regards to the timing are you talking about normal engine timing ? or sumthing different with the magneto ? and with the spark i should of said the machine was working normal last time we ran it , it sat for over a year but because of away from home work commitments ,then when we went to start it we used the old fuel that was in it(stupid mistake) it was full of rain water ,so drained it all and pulled carby apart ,put carby back on and yeah couldnt get it started , just an update yesterday after we cleaned the sparkplugs and checked the leads etc , cranked it and it nearly started after 2 cranks , it was so close ,but then our homemade fuel bowl gasket sprung a leak , so we will try again when we can track down a rebuild kit for the carby , cheers again for the help

So the watery gas fouled your plugs!
You cleaned them up and now the mixture screws have been monkeyed with.
Dry out the plugs, give it another go!
Less choke this time.
Actually I just realized you said the float bowl gasket is leaking?
This tells me your float setting is incorrect, there should be no gas at that level.
If I understand what you posted?