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damunk

fuel pump fuse rating

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damunk

for years i;ve been running the fuel pump on a 3amp fuse.

never blown. polo 6n. is it okay to carry on using the 3amp.?

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nige8021

You've answered your own question if it hasn't blown up till now why should it start, unless you've changed the pump to a different type 

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damunk

no , same pump, just using with bike carbs.

 

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dvderlm

You could connect an ammeter in series and measure the current when running, or measure the pump resistance and calculate max current at 14.4volts.

Then add 50% safety margin for initial inrush current. 

 

I think it was Jaguar E-type where the electric development involved fitting bigger and bigger fuses until they stopped blowing.

 

3Amps x 12volts is 36Watts and that sounds like plenty of electric motor power to me.

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caretakerplus

Remember the old saying, "If it ain't broke, don't fix it"

 

Regards

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