Corroded wiring.

[gillfowdy]

I think this may have been contributing to my 73 bus's slow start problem.
This wire goes from the ignition switch to the starter and the damaged section was about 8 inches from the starter terminal. I think the wire became cooked over time as its above the heater box. The green corrosion went about 3/4 of the way through the wire strands.

Amazing it worked at all.

[aeromech]

It’s a good bet that you’re correct. You should be able to splice onto good wire and replace maybe six inches. You’ll need to make a proper splice though or else it won’t last long. This is possible but won’t be easy
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[bsairhead]

3M makes a good heat shrink splice connector. 12 AWG should be the correct size but having a quality crimp tool is the most important thing.

[aeromech]

Here’s a picture of the type of crimped I have. Not saying you need to go spend $70 but it’s worked well for me for about 15 years

https://www.harborfreight.com/hydraulic-wire-crimping-tool-66150.html
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[bsairhead]

I have a pair of old school Klein? or GB? 9 inch crimpers that have served me well. But if I were to make a loom with more than a dozen crimps I would upgrade.

[gillfowdy]

Thanks. I was able to crimp a new section of wire onto a fresh stripped section
with a new terminal end.

[aeromech]

Did it solve your cranking issue?
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[gillfowdy]

Yes! I had to wait until 20w50 was on sale . I wasnt going to spend 56$ plus tax for Castrol. Starter sounds like a new car! Hasnt been this good in years!
Phil

[aeromech]

This time of year you should not use 20W50
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[mikedjames]

[busdaddy]

I wouldn't even use that in the summertime.
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[Wildthings]

I like to use a lap splice as that is just one less junction. Since the crimps to do this are not always available I just take an available crimp ring terminal cut the eye off and use the crimp. Slather the bare wire ends with dielectric grease, make the crimp and use heat shrink to seal it. Been doing this since the mid seventies with very good results.

When my daughter needed new ends on the battery cables on her Jeep Grand Cherokee, I bought an ~18" cable for 24v battery jumper, cut it in two and then used split bolt connectors to attach the new wire terminal pigtails to the original wires sealing them well with self sealing tape covered with electrical tape. Suspect the splices will last as long as brand new cables would have.

[Wildthings]

5W40 synthetics make a great year around oil for these rigs, requiring no seasonal changes thus saving time and money. If you have a loose engine you can get 5w50 as well.