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Solid State SU Fuel Pump Ticking: Constant?

62BT7

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Hello all: I installed a solid state electronic SU fuel pump in my '62 BT-7 a few months ago. The pump is working fine, ie the car runs well both at idle and driving, including the freeway at higher speeds. Here's the issue: Once the ignition is on there's the usual SU ticking from the pump. Ordinarily with stock pumps the ticking stops after a few seconds, then I'd fire up the engine. With this new solid state pump it rapidly ticks, then slows significantly but never completely stops ticking. Maybe a tick every second or two. I've sealed & tightened every connection from the tank to the pump, including all threaded connections (with teflon tape), tightened all fuel clamps, new fuel lines, etc. No visible cracks in the pump body. Question: It seems the pump is slightly cavitating, but I thought I'd read somewhere in the distant past that the solid state pumps were different in that they never fully stopped ticking...??? Maybe I'm imagining that...Again, it runs fine but this is a pricey piece of gear that I don't want to burn out. Thoughts?
 

Keoke

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Hi 62BT7, Sounds like it is ok to me. However, there are some aftermarket electronic pumps, Not SU's, that click all the time and those are the ones you probably heard being discussed. Or in some cases a bad input fuel line on a new SU install which lets the pump suck air and cycle continuously.---Keoke
 

Bob Hughes

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I have never waited long enough after the pump has initially stopped to listen for residual ticks from my solid state pump, but I would have thought that it was not unusual to happen, to maintain pressure in the line.

Get her going and enjoy that deep throated sound.

Bob
 

dklawson

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Send a PM to Dave DuBois on this board. He will know better than anyone what is normal for the electronic SU pumps.
 

Keoke

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Bob Hughes said:
I have never waited long enough after the pump has initially stopped to listen for residual ticks from my solid state pump, but I would have thought that it was not unusual to happen, to maintain pressure in the line.

Get her going and enjoy that deep throated sound.

Bob


Yep Bob /bcforum/images/%%GRAEMLIN_URL%%/iagree.gif---------------------------------Keoke- /bcforum/images/%%GRAEMLIN_URL%%/thumbsup.gif
 
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