demonboy
Well-Known Member
We have a Perkins Prima M60 and believe we have air in the system. Checking the manual it suggests loosening the Union nuts on the fuel pipe and turning the engine to release the air. In the manual it says if naturally aspirated the nuts are on the top, so I loosened these. These nuts bolt down a connection that has two nipples with rubber hoses running between each atomiser bolt.
1. Am I undoing the right bolt or should I be undoing the ones connected to the metal pipe, not the rubber ones? This contradicts the manual since it says the metal ones underneath are for turbo engines only.
2. What are the rubber pipes for? Are they just an 'overflow' to take excess fuel back to the filter, or am I doing the right thing by bleeding the system through loosening them?
One of these rubber pipes has split so I'm hoping this is the cause of the air leak.
Appreciate anyone clearing up this confusion for me, ta.
1. Am I undoing the right bolt or should I be undoing the ones connected to the metal pipe, not the rubber ones? This contradicts the manual since it says the metal ones underneath are for turbo engines only.
2. What are the rubber pipes for? Are they just an 'overflow' to take excess fuel back to the filter, or am I doing the right thing by bleeding the system through loosening them?
One of these rubber pipes has split so I'm hoping this is the cause of the air leak.
Appreciate anyone clearing up this confusion for me, ta.