S3 fuel pump issue

Talk about the E-Type Series 3

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pgately
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Joined: Sat Dec 23, 2023 5:25 pm
Location: Northwich, Cheshire
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#1 S3 fuel pump issue

Post by pgately » Wed Oct 01, 2025 9:38 am

Hi All,

I’m replacing an old aftermarket Facet fuel pump on a 1972 V12 and installed the SU twin electronic pump.
It starts clicking & pumping okay, but the engine will only idle, cannot rev the engine then intermittent clicks, then cuts out and engine stops.
Any ideal what the problem is?

Or should I go for a replacement facet pump with a fuel filter/regulator?

Cheers,
Paul

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mgcjag
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#2 Re: S3 fuel pump issue

Post by mgcjag » Wed Oct 01, 2025 1:55 pm

Is this a new SU pump.....are both pumps working....disconnect the fuel line in the engine bay and check that you can get full flow from the pumps...connect a pipe into a bucket/can and check the flow....Steve
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc

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Topic author
pgately
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Location: Northwich, Cheshire
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#3 Re: S3 fuel pump issue

Post by pgately » Wed Oct 01, 2025 3:50 pm

Hi Steve,

It's an unused pump maybe dormant for 1 or 2 years.
Both pumps start ticking.
I've removed and tested on the bench - fuel does flow through - then pumps splutter as if there was a break in power & stop.

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mgcjag
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#4 Re: S3 fuel pump issue

Post by mgcjag » Wed Oct 01, 2025 4:01 pm

You can repair or send to Burlan to repair.....Steve
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc

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Topic author
pgately
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Location: Northwich, Cheshire
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#5 Re: S3 fuel pump issue

Post by pgately » Wed Oct 01, 2025 5:12 pm

Thanks Steve, I'll contact Burlen and get their input.

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