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05 /19/ 26, 3:42pm

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Subject: Temperature Guage Readings Author: Leroy A. Eckert [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 03/ 8/ 05, 11:37am 1990 Wanderlodge WB 40 On a recent trip we lost the alternator. It had a 135amp installed but the coach prints called for a 160amp unit. A 160amp unit was installed. Alternator works fine but the following guages have different readings than before. Nothing was changed or disturbed except the alternator itself. before after Engine water temp 190 170 Engine oil temp 230 210 Transmission oil temp170 125 Retarder temp 230 210 I haven't been able to detetmine the problem. Sounds like a common ground, yet no other wires were disturbed. Thanks, Leroy Eckert 1990 Wanderlodge WB 40 [ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[> Subject: Re: Temperature Guage Readings Author: Harvey Lawrence [ Edit | View ] Date Posted: 03/ 29/ 05, 5:38pm I wonder if you knew the voltage registering on you dash volt meter at 1850 RPM with the old alternator and if it is lower with the new alternator?? It sound like the new alternator voltage regulator might not be set as high as the old one and therefor might show in your gauge readings. Another thought is that if you have several batteries and your 130 amp alternator is trying to do the job charging them that the 160 did you might have a load heavy enough to drop charging volts a little. Just a guess Harv [ Post a Reply to This Message ]

[> [> Subject: Re: Temperature Guage Readings Author: Leroy A. Eckert [ Edit | View ] Date Posted: 04/ 3/ 05, 4:06pm Thank you sir for your reply. I am pulling my hair out on this deal. Voltage readings have remained the same at the dash guage about 14v. 50 amps on the output. I have gone to checking voltage at all of the subject guages and all are within millivoltes of each other. I ran a seperate ground from the house batteries direct to each guage with no change.(ie: Looking for a faulty ground) This was done with the subject components hot. I did read temperatures at the engine thermostat with a heat gun and it registered 168 on both thermostats. The next time I run it I will take heat gun readings at the retarder, transmittion pan, and engine oil pan. I have checked grounds and have found nothing haywire. I have contacted Bluebird without success. The only thing that I have not tried is to change the ground cable on the subject alternator. I do not know why, desparation maybe, but I will change it tomorrow. To add to this mystery, it was very cool last evening. I turned on the Primis systems, both of them, nothing! They have been working perfectly. These systems have new pumps and have been recently serviced. Frankly, I do not have a clue. Any ideas would be appreciated. Thanks so much. Leroy A. Eckert 1990 WB 40 [ Post a Reply to This Message ]

[> [> Subject: Re: Temperature Guage Readings Author: Leroy A. Eckert [ Edit | View ] Date Posted: 04/ 25/ 05, 2:30pm Thanks for your previous reply. The guages started working after I changed the ground wire on the #1 alternator. I still do not understand why, but thought I would pass it along. thanks again, Leroy Eckert Niceville, FL. [ Post a Reply to This Message ]

[> [> [> Subject: Re: Temperature Guage Readings Author: Gene Romo (interesteing) [ Edit | View ] Date Posted: 03/ 28/ 08, 1:00pm My late great uncle August always said "Always check your grounds first" "90% of the time your problem lies there." His words have proved true more times than I can remember. just a note to remember. Gene & karen Romo Oxford, NC. www.jerseytomatas.blogspot.com [ Post a Reply to This Message ]