Throttle Pedal Bracket and Cable Installation
In this post, I’ll focus on connecting the throttle cable to the new carb. This requires some work to the throttle pedal and footwell.
The SU throttle is cable controlled, as opposed to the rod and bell crank arrangement of the original Solex. To convert the operations to cable, HNJ Engineering supply a bracket that needs to be bolted to the throttle pedal in the cab. A 13mm hole needs to be drilled in the top of the footwell to accommodate the new cable end.
As mentioned in an earlier post, the cable supplied by HNJ is made in-house by then but only for RHD models, so I’m using a similar product from a LHD 2.5 litre petrol 90… although the quality doesn’t come close to that supplied by HNJ. Part number below.
- Throttle pedal bracket: HNJ2286-005
- 3xM5 cap crews (incl nuts and washers)
- Throttle cable: NTC2087
- Throttle cable nut: NT112041L
- 13mm HSS drill bit
- Callipers (for measuring the cable pull and getting the bracket in the right place)
First, the throttle cable needs to be installed into the footwell and carb. Once complete, the maximum amount of cable pull needs to be established. This is important. Without this, the correct position for the bracket on the pedal can’t be determined properly.
I did actually have to shorten the outer cable as it was still way too long. With enough force the outer can be pulled free of the crimped metal end. The outer was cut down to the required length, the hexagonal crimp drilled out to 5.5mm (the dia as the outer) and the two bonded back together. A short length of shrink wrap finished the job off nicely.
Next up is installing the cold start cable. Watch this space!