Alternator-starter cable replacement simplified
#46
Race Car
#48
Race Car
Nice, I had the cable done first - that was about two years ago.
Starter has lasted since then but had one hard hot start awhile ago and seems ever so slightly slow to turn over so pulled the trigger on a new Bosch one on Amazon today.
Starter has lasted since then but had one hard hot start awhile ago and seems ever so slightly slow to turn over so pulled the trigger on a new Bosch one on Amazon today.
#49
Three Wheelin'
#50
Three Wheelin'
I imagine that somewhere in the world someone knows how to protect electric cable in adverse environments.
#51
Rennlist Member
I can tell you from that picture above that it appears to be a high resistance connection that caused the corrosion/degradation. I don't know if it was protected better if it would of changed much.
#52
Three Wheelin'
Agreed, looks like it's seen some heat. If it's from high resistance then why? I'm pretty sure my other 911s have batteries, alternators, and starters too.
#53
Three Wheelin'
I imagine this is also at risk for an engine fire. The longer you drive, the higher the risk.
#54
Instructor
I'm guessing this was part of my starting and charging problem. BTW the hint about taking the box off with hot water worked like a charm. Still, getting the intake manifold off and on and the alternator out and in is a real pain. I believe the cable was replaced about 5 years and 40k miles ago.
First glimpse that there might be something a little off
That this was still working at all is amazing
After, at idle
First glimpse that there might be something a little off
That this was still working at all is amazing
After, at idle
#55
Three Wheelin'
FWIW,, you can buy many of the parts to rebuild a starter,, its actually fairly easy..
I've done many,, (Not Porsche,, VW and Audi.. ) A typical starter needs 2 bearing/bushings,
a set of brushes. A good cleaning.. I use a vacuum first then spray electrical cleaner..
You need to go easy because the wires in the windings are varnished.. so test on the end of a wire first..
sometimes just mild soap
I've taken the stator in to a local electrical re-builder and they turned the contact area for the brushes for 25 bucks.
total time takes about 30-60 minutes after you do your first one,, as long as all the winding are nice and clean and no burn marks
its usually good to go.. That can be tested quite cheaply as well.. Alternators the same deal,, they seldom need
more than fresh brushes and maybe a bearing.
When its all done just test as if your troubleshooting..
I've done many,, (Not Porsche,, VW and Audi.. ) A typical starter needs 2 bearing/bushings,
a set of brushes. A good cleaning.. I use a vacuum first then spray electrical cleaner..
You need to go easy because the wires in the windings are varnished.. so test on the end of a wire first..
sometimes just mild soap
I've taken the stator in to a local electrical re-builder and they turned the contact area for the brushes for 25 bucks.
total time takes about 30-60 minutes after you do your first one,, as long as all the winding are nice and clean and no burn marks
its usually good to go.. That can be tested quite cheaply as well.. Alternators the same deal,, they seldom need
more than fresh brushes and maybe a bearing.
When its all done just test as if your troubleshooting..
#56
Rennlist Member
#57
Three Wheelin'
IIRC the last alternator I did cost Me about 20 bucks for parts, I replaced brushes, 1 bearing and I bought a diode from mouser to fix the 1 that failed in the rectifier.
#58
I just put a new 997 Bosch alternator in and am very happy with it. Amazing how bright everything is and no variance with the engine speed. Only $300 on Amazon.
#59
Rennlist Member
New Cable Needed?
Got my first Hot Slow Crank, no start yesterday after a 10 min drive.
Is this the latest updated part for my 02 996? As Cable Loom - Genuine PorscheG99660701903
Is this the latest updated part for my 02 996? As Cable Loom - Genuine PorscheG99660701903
#60
Three Wheelin'
Hello Bill, I kind of went down that path last summer. Weird because it was after short drives. Not really a hot engine. Now I'm finding that I'm not having trouble, even with more extended drives, sporty 30 min to 1 hour, hotter motor. I wouldn't mind replacing my Y cable but it's not that easy and it's not clear what the source actually is. And I haven't had any problems for some time. Maybe it helps that I'm keeping a trickle charger on the car now. Another thing, related or not, is that my ignition switch was balky when I got the car, hard to turn to start the car. Sometimes when cold it would take minutes to ease it to the start position at which time the car would start normally. I purchased a new switch, common issue apparently. However, that too has resolved and I haven't needed to install the new part. Clues? Maybe. Try driving your car 45 min or more and see if it starts at that point. Good excuse for a drive. Don't shut off until you are home or park on a hill for easy compression start if you have problems. Let us know what you find.