Mercedes Mullins
The banjo bolt is a component of a car's fuel filter. It is also referred to as an eye bolt in some service manuals. The size of the banjo bolt for a fuel filter varies depending on the car model and year. For example, the banjo bolt for a 1990-1994 DSM (Eclipse/Talon/Laser) car is different from that of a Toyota model from 1979-2011. Some sources suggest that the thread size for a banjo bolt is 12mm x 1.25, while others suggest it is 14x1.5mm. It is important to note that modifying the banjo bolt, such as drilling out the hole, may impact fuel flow and should be done with caution.
| Characteristics | Values |
|---|---|
| Thread Size | 12mm x 1.25, M12 x 1.25, 14 x 1.5mm |
| Hose | 3/8" fuel injection hose |
| Fit | All 1990-1994 DSM (Eclipse/Talon/Laser) cars |
| Kit Contents | 12 o-rings, lower insulator, spacers, washers |
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What You'll Learn
- The banjo bolt is located on the top of the fuel filter
- The bolt size for a Toyota fuel rail and filter is M12 X 1.25
- The bolt size for a Honda fuel filter housing is M12 x 1.25
- The bolt size for a 1G DSM fuel filter is not provided, but a kit is available to replace o-rings
- Some people have drilled out the banjo bolt to improve fuel flow
The banjo bolt is located on the top of the fuel filter
The banjo bolt is also referred to as an "eye bolt" in service manuals. Some people have discussed drilling out the hole in the bolt to improve fuel flow, but others have advised against this, suggesting that upgrading the fuel lines to -AN lines is a better option.
The thread size of the banjo bolt is important for those looking to replace or modify this part. The thread size for the 1G DSM fuel filter banjo bolt is M12 x 1.25, and it is 25mm long. This size is also consistent with the Honda Banjo Bolt thread size, which also has a thread size of M12 x 1.25.
For those looking to replace the banjo bolt, it is important to note that some auto parts stores may only offer a universal bolt, so it is recommended to check with knowledgeable sources to ensure the correct replacement part is obtained.
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The bolt size for a Toyota fuel rail and filter is M12 X 1.25
Banjo bolts are commonly used in automotive fuel systems and feature a unique design with a hollow centre and lateral fuel flow holes, allowing fuel to pass through them. The M12 X 1.25 size is a standard specification for Toyota vehicles, ensuring compatibility and proper sealing of fuel system components.
It is important to use the correct bolt size when working on a vehicle's fuel system. Using a bolt with an incorrect size or specification can lead to fuel leaks, improper sealing, and potential safety hazards. The M12 X 1.25 bolt size is specific to certain Toyota models and years, and it is essential to verify the compatibility of this part with your specific vehicle.
When replacing or working with fuel system components, it is recommended to consult a professional or a trusted mechanic. They can provide expertise and guidance to ensure the correct parts are used and installed properly, maintaining the vehicle's performance and safety standards.
Additionally, when sourcing replacement bolts or fuel system components, it is advisable to purchase parts from reputable suppliers or authorised Toyota dealers. This ensures the quality and compatibility of the parts, preventing potential issues and maintaining the integrity of the fuel system.
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The bolt size for a Honda fuel filter housing is M12 x 1.25
The M12 x 1.25 Honda Banjo Bolt Adapter is specifically designed for the Honda Fuel Filter. This adapter replaces the stock banjo bolt, allowing for a more accessible position for the fuel sensor. It comes with a 1/8-27 NPT Female-to-Male 90-degree elbow, ensuring compatibility with various Honda models.
The M12 x 1.25 thread size is compatible with multiple Honda and Acura models, including the Honda Civic, Honda Del Sol, Honda Prelude, Honda S2000, Acura Integra, and Acura NSX. This banjo bolt thread size is also compatible with certain Mitsubishi models, such as the Mitsubishi Eclipse, Eagle Talon, and their respective model years.
It's important to verify the specific model and year of your vehicle to ensure compatibility with the M12 x 1.25 Honda Banjo Bolt Adapter. Additionally, it is always recommended to refer to the vehicle's service manual or seek professional assistance when performing any fuel system-related repairs or modifications.
The Honda Banjo Bolt Adapter is a useful tool for installing a fuel pressure gauge, although it may not be required for all Honda engines. It simplifies the installation process by providing an accessible position for the fuel pressure sender. This adapter is an example of how automotive manufacturers and aftermarket companies develop solutions to make repairs and upgrades more convenient for vehicle owners and technicians.
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The bolt size for a 1G DSM fuel filter is not provided, but a kit is available to replace o-rings
It is important to use the correct tools when working on your fuel filter, as not doing so can cause damage. For example, a 14mm flare fitting wrench is the right tool to break the line loose under the fuel filter on a 1G DSM. Using a 14mm crescent wrench can round the flare fitting, and using vise-grips can cause further damage.
It is also important to use the correct type of fuel filter. Plastic inline filters are not meant for fuel injection, and even "performance" versions have a maximum pressure of 10psi. OEM filters are available for purchase, and are a better option than cutting fuel lines.
While the bolt size for a 1G DSM fuel filter is not readily available, there are other important considerations and options to keep in mind when working on this component. It is always recommended to use the correct tools and parts to ensure a safe and effective repair or maintenance procedure.
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Some people have drilled out the banjo bolt to improve fuel flow
The banjo bolt is the bolt that lives on the top of the 1G DSM fuel filter and fits all 1990-1994 DSM (Eclipse/Talon/Laser) cars. The thread size for the banjo bolt is M12 x 1.25".
One person on a forum reported that they had drilled out the existing banjo bolt to see if it would have any effect. They used a 7/32 bit, but noted that a 1/4 bit would have been better. They took their car for a drive and planned to report back on whether it changed their EGTs or anything. However, they did not post again, so it is unclear what the results of their experiment were.
Another person on a forum suggested that drilling out the banjo bolt is a waste of time and that upgrading to -AN fuel lines would be a better solution. They also mentioned that they planned to eventually do the AN conversion, using a high-flow inline filter.
It is important to note that modifying the banjo bolt in this way may void warranties and could potentially cause damage to the engine. It is always recommended to consult with a qualified mechanic before making any modifications to your vehicle.
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Frequently asked questions
A banjo bolt is a bolt that lives on the top of a fuel filter.
The thread size of the banjo bolt for a fuel filter DSM is 12mm x 1.25.
Banjo bolts are used in cars to connect fuel lines to the fuel filter and fuel pump.
Banjo bolts can be purchased from auto parts stores or online retailers that specialise in car parts and accessories.
