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The fuel tank on the Series 4 Lotus Seven is located above the rear axle, and as such must be installed prior top the axle rear suspension components. Unfortunately, the tank cannot be finally located until the body is attached. This is because the main fixing bolts also double (more correctly triple) as the seat harness shoulder attachment (inner side for both driver and passenger) and the attachment of the body to the chassis. Therefore, during fitting temporary bolts are used to align the top of the tank. These bolts pass into captive nuts in the top of the tank (Figure 1B). The tank is also held in place by brackets at the lower ends of the tank (Figure 1A) where a nut and bolt (each side) attach it to the sides of the chassis.
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The tank is held in place while two bolts are temporarily used to attach the tank to the chassis via the captive nuts (Figure 2A), which will be removed and replaced once the body is fitted. However, they are useful in allowing the tank to be aligned while the side bolts are tightened in place (Figure 3). It is worth noting that the fuel sender unit is clear of the chassis allowing for the connection of the wiring (Figure 2B). The installed fuel tank is shown in Figure 4.
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This work is licensed by Andrew R. Barron under a Creative Commons Attribution License (CC-BY 3.0), and is an Open Educational Resource.
Last edited by Andrew R. Barron on Dec 13, 2012 7:51 am -0600.
