1990 brumby fuel lines diagram

andy0097 · Post by **andy0097** » Thu Mar 29, 2012 5:58 pm

Hi guys,
As the title says I have a 1990 ea81 Brumby the problem is I'm looking for a fuel line layout from the external fuel pump at that rear which goes to the filter Z366 I think then up to the engine compartment. this is where I am getting confused at present there is another fuel filter there as well, a ryco Z428 which has 3 ports, at one end it has a single 7mm port which is hooked up to a line that heads back into the firewall about in the centre of the engine bay(over pressure pipe I assume)

. The other end of the filter has 2x 8mm ports the one with the arrow marked on it goes off to the carby and the other is the line that comes from the fuel pump(tested by turning ignition on with pipe disconnected).
Does this seem right as I would have thought the input from the pump would have been the end with the single port, Gregory's manual a waste of time hoping someone may have manufactures workshop manual which explained it better, diagrams would be a great help.

steptoe · Post by **steptoe** » Thu Mar 29, 2012 9:10 pm

you have the right numbers of the front and rear filters from memory - get a permanent marker and write the numbers under yer bonnet for future ref.

Must say i never tried to analyse the arrangement myself (hate the smell of petrol)

Have you got a problem or just asking to understand it?

andy0097 · Post by **andy0097** » Fri Mar 30, 2012 8:30 am

Have or had, time will tell were all of a sudden loss of power to engine (not electrical) and engine stops turn ignition off then on and everything is ok for a couple of days.
Hoping its dirty fuel filters, after replacing rear, cut it open and found to be very dirty.
Just wonder if filters especially the front one was connected up incorrectly if it could cause problems

steptoe · Post by **steptoe** » Fri Mar 30, 2012 12:57 pm

Ah, the memories....think that is why previous owner sold my first Brumby. Near went mad, rebuilding carby,renew plugs ,leads, rotor,cap, fuel filters, air filter, fuel pump blamed supermarket fuel, removed sender unit to inspect low tank cleaner than a whistle - then I disconnected all filters off metal lines and blew compressed air from front to rear filter, from rear filter to tank - THOONK - all of a sudden a pile of dirty rusty crud landed in the fuel tank floor. Never had the trouble since that afternoon in 1998 ! Previous owner had the dizzy overhauled by a specialist for some reason - just before I got it!

This story has also solved a few other Brumby owners woes in here !!