Fuel line assembly question

DaveinCanada said:

Hi,

I have a '73 Commando and have a new fuel line assembly. My question is, do I need some sort of gasket or grommet to bolt the banjo bolt connection to the carbs (see pic). Or do I just bolt it up directly to carb with no gasket? Any advice would be appreciated.

Also, I'm going to attempt to start the bike for the first time in many years. Are there an pre-start things I need to do like priming the oil? I've got new plugs, wires, oil system is good, electrical is good. Once I have the gas line in, I think I'm ready to try to start it. Just want to make sure I'm not missing anything.

Dave

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olympus said:

Hi Dave, sealing the larger diameter of the banjo is a plastic filter which goes up inside the banjo, to seal the small hole is a fibre washer that goes around the banjo bolt.

Andover Norton Parts Drawings - Andover Norton Factory Parts - Commando Parts

Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.

andover-norton.co.uk

items 18, 31 & 32 on the attachment

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olympus said:

Hi Dave, sealing the larger diameter of the banjo is a plastic filter which goes up inside the banjo, to seal the small hole is a fibre washer that goes around the banjo bolt.

Andover Norton Parts Drawings - Andover Norton Factory Parts - Commando Parts

Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.

andover-norton.co.uk

items 18, 31 & 32 on the attachment

Click to expand...

marshg246 said:

18 is the drain plug washer - the drawing line is wrong. The banjo bolt fiber washer has no number in the drawing - just a red box.

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olympus said:

Hi Dave, yes the plastic filter is the seal for the upper face of the banjo
The fibre washer is 21a in the attached,
No you cant really use a metal washer as it wont seal

Andover Norton Parts Drawings - Andover Norton Factory Parts - Commando Parts

Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.

andover-norton.co.uk

Click to expand...

olympus said:

if you have the plastic filter, a fibre washer from your local hardware/motor factor will do the job,
Don't use silicone sealant as a substitute

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DaveinCanada said:

I have a '73 Commando and have a new fuel line assembly. My question is, do I need some sort of gasket or grommet to bolt the banjo bolt connection to the carbs (see pic). Or do I just bolt it up directly to carb with no gasket? Any advice would be appreciated.

Click to expand...

L.A.B. said:

The original banjos were nylon and didn't have a gasket under the bolt head which is why no gasket appears in the original parts books.

The latest banjos are metal so do require a gasket under the bolt head.

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DaveinCanada said:

or can I use a rubber or cork washer?

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Tornado said:

Oh, your other question re. 1st fire up, best to tip a bit of oil down the exhaust rocker boxes to get down pushrod tunnels onto cam and followers.

Be sure to check for oil return into tank at filler neck port. Note this may take 3-5 minutes at idle if sump is drained, new oil filter fitted etc. I have a pressure guage on the head oil feed line so I see pressure immediately on startup, well before any sign of oil returning to tank after a full oil service. You could loosen one of the head feed banjos at startup just to know oil is getting there right way, then re-tighten.

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