|
|
I had similar issues with my 320 about 1-1/2 years ago. Would work fine until the charging system would just drop off line. Contacted B&C and they helped me go over the basics (intermittent in the field lead, bad OVP, loose battery cable, bad regulator, broken regulator circuit board, intermittent BAT/ALT switch connection, etc.). Also had the alternator tested locally at maximum load (90A) for over 10 minutes with the suspect regulator. Nothing found.
Finally was able to troubleshoot it with a portable DMM and captured that it truly was an OVP event (~50msec spike) causing the regulator to trigger.
Final cause & fix. Found the alternator brushes were worn (to ~1/2) and was getting "brush hop". The brushes would hop up just long enough (>50msec) for the regulator's OVP to trigger. This would occur at various rpms & electrical loads. One of the tell tales was it would occur at lightt electrical amperage loads -- by increasing the electrical load, it would delay the OVP event. Fix was to replace the $20 set of brushes. At that price I bought a new pair for next time :)
Hope this helps or gives someone else ideas for the future
jim...
Alain NOIREAUX wrote:
Steve ,
could you put the paper from Bob Nucholls on LML ? It could interest a lot of people to check their electric system . Many thanks
Alain Noireaux L 320 F-PSDV
John Schroeder a écrit :
Steve -
What size battery cables do you have? How long are they (battery to Alternator & battery to DC busses)? A crimp anywhere in the system when exposed to heat and very cold temps we can get in the winter may be the culprit. Corrosion in the big terminals may be a problem. Ground straps can get frayed or corroded.
What regulator do you have? Internal to alternator or external? Our B&C regulators have a built-in over voltage circuit that has a specific test to determine if it is working - at that particular moment.
I'm sending you, in another email, a test paper that Bob Nuckolls wrote on how to check out the alternator/regulator/battery system. It may help. We installed a jack for each alternator to make this test easier.
I don't mean to be preachy - just some ideas for what must be a very frustrating problem for you. Hope this helps.
John
On Sun, 03 Feb 2008 03:00:12 -0500, Steve Reeves <sreeves@sc.rr.com> wrote:
The other battery was fine, and I just bought a brand new B&C but
still have the same problem.
Steve
At 07:14 PM 2/2/2008, you wrote:
check your battery.
-- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html
-- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html
|
|