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Alternators Rebuilt - Printable Version +- Wanderlodge Gurus - The Member Funded Wanderlodge Forum (http://www.wanderlodgegurus.com) +-- Forum: Yahoo Groups Archive (/forumdisplay.php?fid=61) +--- Forum: WanderlodgeForum (/forumdisplay.php?fid=63) +--- Thread: Alternators Rebuilt (/showthread.php?tid=4598) Pages: 1 2 |
Alternators Rebuilt - ronmarabito2002 - 03-31-2007 12:58 Just had my alternators rebuilt and I installed them today. The last unit went out after 1400 miles and we suspected all kinds of things could have caused it, but it turned out to be very simple, but probably a one in a million possibility. After I removed the unit, I found a short between a diode and the case, which was caused by some unknown object flying up onto the back of the alternator and selding them together. Unfortunately, I could not determine what it was, since it was melted. At first I thought the battery cable might have touched the case, but it did not. Had it done so, it would have been welded in place and insulation around the terminal would have melted. I get amp readings with the switch in the neutral position only. When I switch to 1 or 2, I don't get an amp reading. I plan to remove the six relays tomorrow that control the ammeter readings and the fault light. I might also pull the switch and see if I have good connections and contacts. I'll let you all know what I find. R.E. (Ron) Marabito, Dallas, TX 92WB40 Alternators Rebuilt - Bob & Carol Howald` - 03-31-2007 14:14 Hi Ron: I seriously doubt that that was the problem.But??? If I were you, and Iam not. I would disconnect or take a piece of card board and cover up the alternator 1 & 2 reading gauge and use my hand held voltage meter for more accurate picture as to what's actually happening. You can go to the back of the coach and access the bus panel where the #1 and #2 alternator connect to the electrical grid and actually find out what's going on. Much more or at least reliable information to be had there. Always good to see your post, much regard's....Bob&Carol..93pt..Illinois, Warm-but going to cool next week....... > > Just had my alternators rebuilt and I installed them today. The > last unit went out after 1400 miles and we suspected all kinds of > things could have caused it, but it turned out to be very simple, but > probably a one in a million possibility. > > After I removed the unit, I found a short between a diode and the > case, which was caused by some unknown object flying up onto the back > of the alternator and selding them together. Unfortunately, I could > not determine what it was, since it was melted. At first I thought the > battery cable might have touched the case, but it did not. Had it > done so, it would have been welded in place and insulation around the > terminal would have melted. > > I get amp readings with the switch in the neutral position only. > When I switch to 1 or 2, I don't get an amp reading. I plan to remove > the six relays tomorrow that control the ammeter readings and the > fault light. I might also pull the switch and see if I have good > connections and contacts. > > I'll let you all know what I find. > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > Alternators Rebuilt - mbrund - 03-31-2007 14:19 I have the same issue, they would fine when in the center position, but when I try 1 or 2 I get no reading. I do not think there is anything wrong, but it is on my list of things to look into some day. Michael Brundridge 1992 WB40 - newbie Georgetown, TX --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002" > > Just had my alternators rebuilt and I installed them today. The > last unit went out after 1400 miles and we suspected all kinds of > things could have caused it, but it turned out to be very simple, but > probably a one in a million possibility. > > After I removed the unit, I found a short between a diode and the > case, which was caused by some unknown object flying up onto the back > of the alternator and selding them together. Unfortunately, I could > not determine what it was, since it was melted. At first I thought the > battery cable might have touched the case, but it did not. Had it > done so, it would have been welded in place and insulation around the > terminal would have melted. > > I get amp readings with the switch in the neutral position only. > When I switch to 1 or 2, I don't get an amp reading. I plan to remove > the six relays tomorrow that control the ammeter readings and the > fault light. I might also pull the switch and see if I have good > connections and contacts. > > I'll let you all know what I find. > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > Alternators Rebuilt - ronmarabito2002 - 03-31-2007 15:45 I'll check it back there as well. R.E. (Ron) Marabito, Dallas, TX 92WB40 --- In WanderlodgeForum@yahoogroups.com, "Bob & Carol Howald`" > > Hi Ron: I seriously doubt that that was the problem.But??? If I > were you, and Iam not. I would disconnect or take a piece of card > board and cover up the alternator 1 & 2 reading gauge and use my > hand held voltage meter for more accurate picture as to what's > actually happening. You can go to the back of the coach and access > the bus panel where the #1 and #2 alternator connect to the > electrical grid and actually find out what's going on. Much more or > at least reliable information to be had there. Always good to see > your post, much regard's....Bob&Carol..93pt..Illinois, Warm-but going > to cool next week....... > > > > Just had my alternators rebuilt and I installed them today. The > > last unit went out after 1400 miles and we suspected all kinds of > > things could have caused it, but it turned out to be very simple, > but > > probably a one in a million possibility. > > > > After I removed the unit, I found a short between a diode and > the > > case, which was caused by some unknown object flying up onto the > back > > of the alternator and selding them together. Unfortunately, I could > > not determine what it was, since it was melted. At first I thought > the > > battery cable might have touched the case, but it did not. Had it > > done so, it would have been welded in place and insulation around > the > > terminal would have melted. > > > > I get amp readings with the switch in the neutral position > only. > > When I switch to 1 or 2, I don't get an amp reading. I plan to > remove > > the six relays tomorrow that control the ammeter readings and the > > fault light. I might also pull the switch and see if I have good > > connections and contacts. > > > > I'll let you all know what I find. > > > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > > Alternators Rebuilt - ronmarabito2002 - 03-31-2007 15:47 I have the wiring diagram showing these 6 relays. Sure seems over-engineered to me. R.E. (Ron) Marabito, Dallas, TX 92WB40 --- In WanderlodgeForum@yahoogroups.com, "mbrund" <mbrund@...> wrote: > > I have the same issue, they would fine when in the center position, > but when I try 1 or 2 I get no reading. I do not think there is > anything wrong, but it is on my list of things to look into some day. > > Michael Brundridge > 1992 WB40 - newbie > Georgetown, TX > > --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002" > > > > > Just had my alternators rebuilt and I installed them today. > The > > last unit went out after 1400 miles and we suspected all kinds of > > things could have caused it, but it turned out to be very simple, > but > > probably a one in a million possibility. > > > > After I removed the unit, I found a short between a diode and > the > > case, which was caused by some unknown object flying up onto the > back > > of the alternator and selding them together. Unfortunately, I > could > > not determine what it was, since it was melted. At first I thought > the > > battery cable might have touched the case, but it did not. Had it > > done so, it would have been welded in place and insulation around > the > > terminal would have melted. > > > > I get amp readings with the switch in the neutral position > only. > > When I switch to 1 or 2, I don't get an amp reading. I plan to > remove > > the six relays tomorrow that control the ammeter readings and the > > fault light. I might also pull the switch and see if I have good > > connections and contacts. > > > > I'll let you all know what I find. > > > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > > Alternators Rebuilt - Leroy Eckert - 04-01-2007 01:31 Mine does the same thing. It is one of two squawk items I have and has been on the list for three years. I have chased the ghost before but without a schematic. I finally unplugged my fault light. Everthing has been fine but I need to check the alternators with a multi-meter periodically. A while back someone, I think Don Bradner, had a similar problem with alternators and the crazy switch readings. As I recall, someone else, perhaps the prior owner of his coach stated that the switch did not work properly because the alternators were not perfectly matched up or something like that, and BB installed some kind of delay wiring. I do not recall seeing a post as to the final results. Perhaps he can let us know. Could I get a copy of your schematic? Leroy Eckert 1990 WB-40"Smoke N Mirrors" Niceville, FL ----- Original Message ----- From: ronmarabito2002 To: WanderlodgeForum@yahoogroups.com Sent: Saturday, March 31, 2007 10:47 PM Subject: [WanderlodgeForum] Re: Alternators Rebuilt I have the wiring diagram showing these 6 relays. Sure seems over-engineered to me. R.E. (Ron) Marabito, Dallas, TX 92WB40 --- In WanderlodgeForum@yahoogroups.com, "mbrund" <mbrund@...> wrote: > > I have the same issue, they would fine when in the center position, > but when I try 1 or 2 I get no reading. I do not think there is > anything wrong, but it is on my list of things to look into some day. > > Michael Brundridge > 1992 WB40 - newbie > Georgetown, TX > > --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002" > > > > > Just had my alternators rebuilt and I installed them today. > The > > last unit went out after 1400 miles and we suspected all kinds of > > things could have caused it, but it turned out to be very simple, > but > > probably a one in a million possibility. > > > > After I removed the unit, I found a short between a diode and > the > > case, which was caused by some unknown object flying up onto the > back > > of the alternator and selding them together. Unfortunately, I > could > > not determine what it was, since it was melted. At first I thought > the > > battery cable might have touched the case, but it did not. Had it > > done so, it would have been welded in place and insulation around > the > > terminal would have melted. > > > > I get amp readings with the switch in the neutral position > only. > > When I switch to 1 or 2, I don't get an amp reading. I plan to > remove > > the six relays tomorrow that control the ammeter readings and the > > fault light. I might also pull the switch and see if I have good > > connections and contacts. > > > > I'll let you all know what I find. > > > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > > [Non-text portions of this message have been removed] Alternators Rebuilt - Wilhelmus Schreurs - 04-01-2007 02:43 Ron: Could you send me a copy of the diagram as well please. Just curious thanks Bill 84 FC 35 SB "$quanderlodge" Terrace, B.C. Canada ----- Original Message ---- From: Leroy Eckert To: WanderlodgeForum@yahoogroups.com Sent: Sunday, April 1, 2007 6:31:51 AM Subject: Re: [WanderlodgeForum] Re: Alternators Rebuilt Mine does the same thing. It is one of two squawk items I have and has been on the list for three years. I have chased the ghost before but without a schematic. I finally unplugged my fault light. Everthing has been fine but I need to check the alternators with a multi-meter periodically. A while back someone, I think Don Bradner, had a similar problem with alternators and the crazy switch readings. As I recall, someone else, perhaps the prior owner of his coach stated that the switch did not work properly because the alternators were not perfectly matched up or something like that, and BB installed some kind of delay wiring. I do not recall seeing a post as to the final results. Perhaps he can let us know. Could I get a copy of your schematic? Leroy Eckert 1990 WB-40"Smoke N Mirrors" Niceville, FL ----- Original Message ----- From: ronmarabito2002 To: WanderlodgeForum@ yahoogroups. com Sent: Saturday, March 31, 2007 10:47 PM Subject: [WanderlodgeForum] Re: Alternators Rebuilt I have the wiring diagram showing these 6 relays. Sure seems over-engineered to me. R.E. (Ron) Marabito, Dallas, TX 92WB40 --- In WanderlodgeForum@ yahoogroups. com, "mbrund" <mbrund@...> wrote: > > I have the same issue, they would fine when in the center position, > but when I try 1 or 2 I get no reading. I do not think there is > anything wrong, but it is on my list of things to look into some day. > > Michael Brundridge > 1992 WB40 - newbie > Georgetown, TX > > --- In WanderlodgeForum@ yahoogroups. com, "ronmarabito2002" > > > > > Just had my alternators rebuilt and I installed them today. > The > > last unit went out after 1400 miles and we suspected all kinds of > > things could have caused it, but it turned out to be very simple, > but > > probably a one in a million possibility. > > > > After I removed the unit, I found a short between a diode and > the > > case, which was caused by some unknown object flying up onto the > back > > of the alternator and selding them together. Unfortunately, I > could > > not determine what it was, since it was melted. At first I thought > the > > battery cable might have touched the case, but it did not. Had it > > done so, it would have been welded in place and insulation around > the > > terminal would have melted. > > > > I get amp readings with the switch in the neutral position > only. > > When I switch to 1 or 2, I don't get an amp reading. I plan to > remove > > the six relays tomorrow that control the ammeter readings and the > > fault light. I might also pull the switch and see if I have good > > connections and contacts. > > > > I'll let you all know what I find. > > > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > > [Non-text portions of this message have been removed] __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com [Non-text portions of this message have been removed] Alternators Rebuilt - Don Bradner - 04-01-2007 04:24 The delay is on the fault light. The switch worked, but one alternator had no output, and that was apparently real. After replacing both alternators with a pair that are identical models I have output in all three switch positions, and the center position is roughly double what each is showing separately. I would not expect to get the fault light, but I haven't driven it long enough since the alternators were installed to tell. The delay is roughly 30 minutes. I have uploaded my schematic here: http://www.arcatapet.net/travel/bluebirds/chargerschematic.jpg On 4/1/2007 at 8:31 AM Leroy Eckert wrote: >Mine does the same thing. It is one of two squawk items I have and has >been on the list for three years. I have chased the ghost before but >without a schematic. I finally unplugged my fault light. Everthing has >been fine but I need to check the alternators with a multi-meter >periodically. > >A while back someone, I think Don Bradner, had a similar problem with >alternators and the crazy switch readings. As I recall, someone else, >perhaps the prior owner of his coach stated that the switch did not work >properly because the alternators were not perfectly matched up or >something like that, and BB installed some kind of delay wiring. I do >not recall seeing a post as to the final results. Perhaps he can let us >know. > >Could I get a copy of your schematic? Don Bradner 90 PT40 "Blue Thunder" Eureka, CA Alternators Rebuilt - mbulriss - 04-01-2007 04:59 There is tons of room in the Files section now to add the diagrams there so that everyone can access them...... Mike Bulriss 1991 WB40 "Texas Minivan" San Antonio, TX --- In WanderlodgeForum@yahoogroups.com, Wilhelmus Schreurs > > Ron: > Could you send me a copy of the diagram as well please. Just curious > thanks > > Bill 84 FC 35 SB "$quanderlodge" > Terrace, B.C. Canada > > > > > ----- Original Message ---- > From: Leroy Eckert > To: WanderlodgeForum@yahoogroups.com > Sent: Sunday, April 1, 2007 6:31:51 AM > Subject: Re: [WanderlodgeForum] Re: Alternators Rebuilt > > Mine does the same thing. It is one of two squawk items I have and has been on the list for three years. I have chased the ghost before but without a schematic. I finally unplugged my fault light. Everthing has been fine but I need to check the alternators with a multi-meter periodically. > > A while back someone, I think Don Bradner, had a similar problem with alternators and the crazy switch readings. As I recall, someone else, perhaps the prior owner of his coach stated that the switch did not work properly because the alternators were not perfectly matched up or something like that, and BB installed some kind of delay wiring. I do not recall seeing a post as to the final results. Perhaps he can let us know. > > Could I get a copy of your schematic? > > Leroy Eckert > 1990 WB-40"Smoke N Mirrors" > Niceville, FL > > ----- Original Message ----- > From: ronmarabito2002 > To: WanderlodgeForum@ yahoogroups. com > Sent: Saturday, March 31, 2007 10:47 PM > Subject: [WanderlodgeForum] Re: Alternators Rebuilt > > I have the wiring diagram showing these 6 relays. Sure seems > over-engineered to me. > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > --- In WanderlodgeForum@ yahoogroups. com, "mbrund" <mbrund@> wrote: > > > > I have the same issue, they would fine when in the center position, > > but when I try 1 or 2 I get no reading. I do not think there is > > anything wrong, but it is on my list of things to look into some day. > > > > Michael Brundridge > > 1992 WB40 - newbie > > Georgetown, TX > > > > --- In WanderlodgeForum@ yahoogroups. com, "ronmarabito2002" > > > > > > > > Just had my alternators rebuilt and I installed them today. > > The > > > last unit went out after 1400 miles and we suspected all kinds of > > > things could have caused it, but it turned out to be very simple, > > but > > > probably a one in a million possibility. > > > > > > After I removed the unit, I found a short between a diode and > > the > > > case, which was caused by some unknown object flying up onto the > > back > > > of the alternator and selding them together. Unfortunately, I > > could > > > not determine what it was, since it was melted. At first I thought > > the > > > battery cable might have touched the case, but it did not. Had it > > > done so, it would have been welded in place and insulation around > > the > > > terminal would have melted. > > > > > > I get amp readings with the switch in the neutral position > > only. > > > When I switch to 1 or 2, I don't get an amp reading. I plan to > > remove > > > the six relays tomorrow that control the ammeter readings and the > > > fault light. I might also pull the switch and see if I have good > > > connections and contacts. > > > > > > I'll let you all know what I find. > > > > > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > > > > > > [Non-text portions of this message have been removed] > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > [Non-text portions of this message have been removed] > Alternators Rebuilt - ronmarabito2002 - 04-01-2007 06:26 Well: I checked out the (6) relays and all of them function correctly, so the problem has to be before the relays, like a circuit breaker or could be at the switch. I'll keep looking. I can send you the schematic later today, when I have a minute to scan it. R.E. (Ron) Marabito, Dallas, TX 92WB40 --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > Mine does the same thing. It is one of two squawk items I have and has been on the list for three years. I have chased the ghost before but without a schematic. I finally unplugged my fault light. Everthing has been fine but I need to check the alternators with a multi-meter periodically. > > A while back someone, I think Don Bradner, had a similar problem with alternators and the crazy switch readings. As I recall, someone else, perhaps the prior owner of his coach stated that the switch did not work properly because the alternators were not perfectly matched up or something like that, and BB installed some kind of delay wiring. I do not recall seeing a post as to the final results. Perhaps he can let us know. > > Could I get a copy of your schematic? > > Leroy Eckert > 1990 WB-40"Smoke N Mirrors" > Niceville, FL > > > ----- Original Message ----- > From: ronmarabito2002 > To: WanderlodgeForum@yahoogroups.com > Sent: Saturday, March 31, 2007 10:47 PM > Subject: [WanderlodgeForum] Re: Alternators Rebuilt > > > > I have the wiring diagram showing these 6 relays. Sure seems > over-engineered to me. > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > --- In WanderlodgeForum@yahoogroups.com, "mbrund" <mbrund@> wrote: > > > > I have the same issue, they would fine when in the center position, > > but when I try 1 or 2 I get no reading. I do not think there is > > anything wrong, but it is on my list of things to look into some day. > > > > Michael Brundridge > > 1992 WB40 - newbie > > Georgetown, TX > > > > --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002" > > > > > > > > Just had my alternators rebuilt and I installed them today. > > The > > > last unit went out after 1400 miles and we suspected all kinds of > > > things could have caused it, but it turned out to be very simple, > > but > > > probably a one in a million possibility. > > > > > > After I removed the unit, I found a short between a diode and > > the > > > case, which was caused by some unknown object flying up onto the > > back > > > of the alternator and selding them together. Unfortunately, I > > could > > > not determine what it was, since it was melted. At first I thought > > the > > > battery cable might have touched the case, but it did not. Had it > > > done so, it would have been welded in place and insulation around > > the > > > terminal would have melted. > > > > > > I get amp readings with the switch in the neutral position > > only. > > > When I switch to 1 or 2, I don't get an amp reading. I plan to > > remove > > > the six relays tomorrow that control the ammeter readings and the > > > fault light. I might also pull the switch and see if I have good > > > connections and contacts. > > > > > > I'll let you all know what I find. > > > > > > R.E. (Ron) Marabito, Dallas, TX 92WB40 > > > > > > > > > > > [Non-text portions of this message have been removed] > |