LRA tanks use an intank electrical pump, specific for that, usually. Sender unit might be the same since it has to match with the existing dashboard gauge electrics. But, I reckon the LRA intank pump might be different from the original one.Quote:
Originally Posted by Travo
They do develop problems over time, but I'm guessing, most of those fuel pumping problems are related to connections getting weaker over time, rather than pump itself. I have a similar issue atm, which I'm about to diagnose once for all by dropping the LRA tank in mine(RB30, carby). The best way to diagnose whether your issue is fuel pressure related is by checking the fuel pressure with a gauge. Fuel pressure tester is a cheap unit you can by off fleabay. It usually doubles as vacuum tester as well.
http://www.ebay.com.au/itm/10-PSI-Ca...wAAOSwo6lWJJky
Fuel pressure can be different between carby & EFI models, as well as turbo and non-turbo engines.
Follow these video guides on how to do the test.
https://www.youtube.com/watch?v=AeVTZz0od7Y
https://www.youtube.com/watch?v=_oXLUqE4Sf0
Refer the Haynes manual(which can be downloaded from here) section 4(Chapter 4) Part B, page 2 and 3(4B-2 and 4B-3) or PDF page 12 & 13 of of the section 4(chaper 4) of the Haynes manual.
Pay a bit of attention to the fuel pressure regulator. That might be the cause of the issue.
