The Murphy Builders Site

Hi all



How have people with firewall cut back routeed throttle and mixture cables,



there does not seem to be room to go straight then down then through
firewall while using a good amount of radius on bends



was thinking of going sideways along firewall then down to floor and back
around to pass through firewall near the floor



thanks for any help, pics would be great



mike#007







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Mike,
One big (although expensive) help is to use the swiveling eyeball firewall penetrations. They provide fire seal, an additional cable sheath grip, and allow firewall penetration at a step angle to minimize bending at that point. It allows the cables to remain closer to the firewall and therefore helps the bend radius at the bottom. The short MAM mount makes cable routing difficult at best. One other help is the Vans plate that goes between the carb and sump. It will require custom cables but can minimize routing headaches. Vans can supply the cables as well. Give them a call for a catalog if you do not have one.
Ralph Baker



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Mike, even with the plate it is not easy due to the short mount. We have an O-360 in our Elite and even with the swivel eyeballs in the firewall only the throttle is usable with a rod type cable end. (Which we will use) The mixture cable will be a standard Bowden type with a bug nut at the mixture arm. There just isn't any more room allowing reasonable bends. The plate saves cobbling up cable sheath clamp mounts on the engine or engine mount.
Ralph Baker



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