Diesel lift pump fittings

MM5AHO

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1 Oct 2007
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I have a new mechanical lift pump to fit to a Lister HA2 diesel, and can't figure out the threads of the pumps inlet and outlet.
The pump is a Lucas FP240, and the thread looks like a 1/4 NPT, but NPT doesn't fit. It's not BSP.
It does seem to be a tapered thread.

Any ideas?
 
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