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recapen(at)earthlink.net
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 Posted: Tue Oct 16, 2012 6:07 am Post subject: Lockwasher under big wire mount |
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Please refresh my memory.
The large wire the goes between the starter relay and my B&C starter on my RV has a lockwasher on the relay end. When I got my engine back from inspection (tornado-induced-hangar-door-prop-strike), the lockwasher was not there...I don't remember of it ever was.
The stack as it currently sits:
Starter stud
18awg with ring PIDG and Fast-on PIDG (other end)
4awg with big crimped end
flat brass washer
Brass nut
The wire also has an Adel clamp attaching ot to the oil sump along the side to reduce possibility of relative movement.
If it wasn't there before...it didn't move and may not be necessary at all.
I don't have an issue with adding it if necessary...and I think it would go between the nut and the flat washer.
Your thoughts,
Ralph
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nuckolls.bob(at)aeroelect
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| Posted: Tue Oct 16, 2012 6:25 am Post subject: Lockwasher under big wire mount |
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At 09:06 AM 10/16/2012, you wrote:
| Quote: |
<recapen(at)earthlink.net>
Please refresh my memory.
The large wire the goes between the starter relay and my B&C starter
on my RV has a lockwasher on the relay end. When I got my engine
back from inspection (tornado-induced-hangar-door-prop-strike), the
lockwasher was not there...I don't remember of it ever was.
The stack as it currently sits:
Starter stud
18awg with ring PIDG and Fast-on PIDG (other end)
4awg with big crimped end
flat brass washer
Brass nut
The wire also has an Adel clamp attaching ot to the oil sump along
the side to reduce possibility of relative movement.
If it wasn't there before...it didn't move and may not be necessary at all.
I don't have an issue with adding it if necessary...and I think it
would go between the nut and the flat washer.
Your thoughts,
Ralph
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Bob . . .
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nuckolls.bob(at)aeroelect
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| Posted: Tue Oct 16, 2012 6:35 am Post subject: Lockwasher under big wire mount |
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At 09:06 AM 10/16/2012, you wrote:
| Quote: |
<recapen(at)earthlink.net>
Please refresh my memory.
The large wire the goes between the starter relay and my B&C starter
on my RV has a lockwasher on the relay end. When I got my engine
back from inspection (tornado-induced-hangar-door-prop-strike), the
lockwasher was not there...I don't remember of it ever was.
The stack as it currently sits:
Starter stud
18awg with ring PIDG and Fast-on PIDG (other end)
4awg with big crimped end
flat brass washer
Brass nut
The wire also has an Adel clamp attaching ot to the oil sump along
the side to reduce possibility of relative movement.
If it wasn't there before...it didn't move and may not be necessary at all.
I don't have an issue with adding it if necessary...and I think it
would go between the nut and the flat washer.
|
I'm wondering if there has ever been a 'loosening event'
on one of these studs that put a system in distress.
A properly torqued fastener is pretty much immobilized.
A lock-washer is not a prophylactic feature against
loss of an improperly torqued joint.
The split-ring lock washers shipped with many such
devices are whistling in the dark . . . an internal
toothed washer adds multiple bite-sites for driving up
the torque required to loosen a nut. But I think
the stack up you described is just fine except that
I'd put the fat wire terminal on first with the smaller
one on top of that.
If there are concerns about loosening, a spot of
super-glue in the threads of the mated fastener
is probably a better bet. Adds a lot of anti-rotation
resistance but not so much as to make future disassembly
difficult. Further, the thread-locker does its
job in the non-contact spaces of the threads
and doesn't add to joint resistance.
Bob . . .
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recapen(at)earthlink.net
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| Posted: Tue Oct 16, 2012 7:36 am Post subject: Lockwasher under big wire mount |
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Good info - thanks!
--
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