| Diagram | Fig. 8 — CARBURETOR TR7RV · ref 24 |
| Subsystem | fuel |
| Listed in parts books | 1968–1970, 1975–1980, 1983, 1985 |
Banjo bolt (622/078)
Banjo bolt for Amal Concentric carburetors, securing the fuel line banjo union to the carb body.
This is a banjo bolt used on Amal Concentric carburetors, the fitting that holds the fuel line banjo union onto the carb body. It shows up across a wide run of Amal Concentric carburetor figures in the catalog, from Mark I to Mark II versions, so it's a common item to need whether you're rebuilding a Concentric off a TR7RV, a T140, a T100, or one of the other twins that ran this carb line.
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The part carries the factory number 622/078, which is the same identity as this listing's own number - if your parts book or an old invoice shows 622/078, that's this bolt.
If you're pulling a fuel banjo apart for a rebuild or a leak, it's worth having a fresh one of these on hand along with the sealing washers that go with it, since the sealing faces take a beating over the years.
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