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8011 need help please

serenity

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samantha simpson
??? i need 2 know how 2 bleed the air lock out of my zeter crystol diesel tank.
 
Make sure the Gauze filter under the tap is clean!!!
On the top of each filter is a screw. Not the bigger bolt.
slacken each screw about 2 turns.
Pump the fuel hand pump until fuel with no bubbles comes out.Then tighten while slowly pumping to stop any air getting back in.
(The hand pump is the round "wheel" under the main injector pump, unscrew it and then pull it in and out to pump.)
Then look at the top of the Injector pump where the 4 pipes come out to go to the injectors. At the front of the pump is a hex bolt, usually with a screw slot, may be painted red, 12 mm spanner I think, slacken this one and again hand pump until fuel with no bubbles comes out. Then tighten.
Crystals will normally start after 15-20 seconds of starter after this.
occasionally,although I have never known a crystal to need it, you may have to slacken Injector pipes where they join the injectors behind the inlet manifold and let air out while cranking.
Hope this somewhat rambling answer helps. Dave
 
Great answer Dave P! Very comprehensive.

I recently had a problem with my Crystal airlocking - it was eventually chased to a hairline crack in the glass sediment bowl
which was temproarily repaired with super glue until I can purchase a new one.

Also the original Zetor fuel hoses are crap - replace them with Gates quality rubber fuel lines.

The golden rule is - airlocking is due to air entering on the suction side i.e. before the fuel pump. Work along progressively from the tank down and you will solve the problem. (BTW If the leak was on the pressurized side of the fuel pump, you would see fuel squirting out).

 

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