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[Datsun 1200 encyclopedia]

Float Level Adjustment

(Difference between revisions)

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Printable version | Disclaimers | Privacy policy | Current revision
Categories: Hitachi 306 Carburetor | Fuel System

Revision as of 11:04, 23 July 2015
ddgonzal (Talk | contribs)

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Current revision
ddgonzal (Talk | contribs)

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If the float level is OK If the float level is OK
-[http://datsun1200.com/modules/myalbum/photo.php?lid=2215 http://datsun1200.com/modules/myalbum/photos/2215.jpg]+{{Album|2215}} {{Album|7792}}
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-[http://datsun1200.com/modules/myalbum/photo.php?lid=7792 http://datsun1200.com/modules/myalbum/photos/7792.jpg]+
If the fuel level is within 1mm of the dot, it is already at the correct adjustment. If the fuel level is within 1mm of the dot, it is already at the correct adjustment.
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 +{{Album|6854}}
= Adjustment = = Adjustment =
IMPORTANT: High fuel pump pressure can cause a high float, so if it is high, perform the [[Fuel pump pressure test]] first -- before taking the carb apart to adjust the Float Level. IMPORTANT: High fuel pump pressure can cause a high float, so if it is high, perform the [[Fuel pump pressure test]] first -- before taking the carb apart to adjust the Float Level.
-1. Remove the top of the carburetor. See [[Carburetor Top Removal]] for instructions.+1. Remove the air cleaner assembly. For details, see [[Air_Cleaner#Removal|Air Cleaner Removal]]
 + 
 +2. Remove the top of the carburetor. See [[Carburetor Top Removal]] for instructions.
-2. Turn the top upside down (and level)+3. Turn the top upside down (and level)
-<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=5087 http://datsun1200.com/modules/myalbum/photos/5087.jpg]+<br>{{Album|5087}}
-3. Measure that the float hangs with .418 inch space per this diagram +4. Measure that the float hangs with .418 inch space per this diagram
-<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=7793 http://datsun1200.com/modules/myalbum/photos/7793.jpg]+<br>{{Album|7793}}
-4. if necessary to adjust float, bend the tang under the float pivot pin. +5. if necessary to adjust float, bend the tang under the float pivot pin.
-<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=1009 http://datsun1200.com/modules/myalbum/photos/1009.jpg]+<br>{{Album|1009}}
'''Reassembly''': Put the top back on in reverse order of dis-assembly. Just tighten the bolts enough to compress the lock washers. No more. '''Reassembly''': Put the top back on in reverse order of dis-assembly. Just tighten the bolts enough to compress the lock washers. No more.
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See main article: [[Float repair]] See main article: [[Float repair]]
-[[Category:Fuel System]]+[[Category:Fuel System]]{{End}}

Current revision

When the engine is running, look at the float glass, make sure the level is right. If it's not within 1 mm of the center line of the glass, you'll need to take the carb apart to adjust the float level. A repair manual will be useful here.


Checking

If the float level is OK

2215.jpgAlbum 2215 7792.jpgAlbum 7792

If the fuel level is within 1mm of the dot, it is already at the correct adjustment.

6854.jpgAlbum 6854

Adjustment

IMPORTANT: High fuel pump pressure can cause a high float, so if it is high, perform the Fuel pump pressure test first -- before taking the carb apart to adjust the Float Level.

1. Remove the air cleaner assembly. For details, see Air Cleaner Removal

2. Remove the top of the carburetor. See Carburetor Top Removal for instructions.

3. Turn the top upside down (and level)
5087.jpgAlbum 5087

4. Measure that the float hangs with .418 inch space per this diagram
7793.jpgAlbum 7793

5. if necessary to adjust float, bend the tang under the float pivot pin.
1009.jpgAlbum 1009

Reassembly: Put the top back on in reverse order of dis-assembly. Just tighten the bolts enough to compress the lock washers. No more.

Then perform Idle Speed and Mixture Adjustment - which will change due to changed float level.

Bad Float

See main article: Float repair 
¤