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John(UK) 01-07-2013 07:18:57 79.76.249.75 Report to Moderator

You really need to locate the correct Carburettor for this Engine as Jerry has said. It can be either a Carter or a Schebler. Always use the correct gaskets on a Carburettor or it will suck air or leak fuel. Make sure that the height of the fuel in the Carb Bowl is correct at all times. This should be 13/64" (on a Schebler)from the top of the Float to the machined face of the Carburettor top casting, where it would attach to the bottom Bowl this setting must be accurate and because of this the correct thickness of gasket is necessary. To adjust this clearance you can use needle-nose pliers to alter the Float clearance. On a Schebler Carburettor, the clearance is 1/4" from the machined surface of the Top Casting BUT WITH THE GASKET IN PLACE to the nearest part of the Float. So in this instance you measure from the top of the gasket to the Float, which is different to the Carter Carb. When you are measuring this clearance on both types of Carb, you have the Top Casting upside down to how it would be mounted on the Engine, in this position the Float will drop and be in the shut-off position and then you can measure the clearance. In both instances make sure that the shut-off valve is in good order and that it isn't marked due to wear, change it if there is any doubt about it or it may leak and overfill the Carb. which in turn will cause the engine to run erratically, no matter how you try to adjust it. John(UK)...fergusontractors@hotmail.com [Reply]   [No Email]