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19-12-2008, 17:45   #1
nkay1985
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Bleed screw on Riello 40

Hi guys,

I've been searching the net and this forum trying to find out exactly where the bleed screw is on a Riello 40 oil pump. I don't want to hazard a guess in case I mix it up with the pressure adjuster.

Can anyone be of any assistance?
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19-12-2008, 18:29   #2
stillbornalive
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hi on the side of the pump near to the top of it, you will see a alan key socket usually a size 4. thats the bleed open it but do not take it out air will be releaced and when fuel comes out close it up
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19-12-2008, 18:40   #3
Avns1s
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Bottom Nut - about 5/8" IIRC (the silver one).



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Last edited by Avns1s; 19-12-2008 at 18:42.
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19-12-2008, 18:43   #4
f1_jb
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If you look at the pump on the left of the burner you will see facing you a Screw in the middle of a nut don't touch this) and below that a nut, this is the bleed nut I think its a 13mm loosen it a bit and wait until you get a small flow of oil out of it.

What ever you do don't adjust the flat head screw head as this is the pressuer adjuster.
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19-12-2008, 18:45   #5
JamesM
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Both are correct. The allen screw is the 1st to try - If you don't have an allen key, try the nut below the adjusting screw.
Jim.
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19-12-2008, 21:52   #6
nkay1985
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Yeah that's the one I figured it was but thanks for the verification. All working fine now.
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15-05-2012, 11:14   #7
leoch
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i just got my riello 40 going from being airlocked but i think i almost took out the air adjuster screw but it seems to be heating now the best i screwed back in the air adfjuster screw but dont know if its in far enough or not far enough how would you know
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