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01-29-2020, 11:11 PM
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#21
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds 31W
State: Michigan
Posts: 542
THOR #9522
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alert us should be alternator in above post.
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Pete and Carolynn Foss from Oxford, MI
2018 Four Winds 31W
1999 Aero Cub F-21 trailer
1977 Tioga 24 foot RV
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01-29-2020, 11:28 PM
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#22
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Junior Member
Brand: Thor Motor Coach
State: Illinois
Posts: 8
THOR #16386
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2019 26B, My starting toggle switch inside only rocks one way (to start)! How do I prime from inside? Onan 4000
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01-29-2020, 11:36 PM
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#23
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds 31W
State: Michigan
Posts: 542
THOR #9522
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How do you stop it if the switch only rocks one way?
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Pete and Carolynn Foss from Oxford, MI
2018 Four Winds 31W
1999 Aero Cub F-21 trailer
1977 Tioga 24 foot RV
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01-30-2020, 12:38 AM
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#24
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 16,490
THOR #7035
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Quote:
Originally Posted by petefoss
alert us should be alternator in above post.
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You know you can edit posts for up to an hour after you post it?
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Ted & Melinda
2016 ACE 27.1
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B BU TOAD
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01-30-2020, 12:39 AM
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#25
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 16,490
THOR #7035
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Quote:
Originally Posted by petefoss
How do you stop it if the switch only rocks one way?
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That's the question!
__________________
Ted & Melinda
2016 ACE 27.1
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B BU TOAD
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01-30-2020, 01:50 AM
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#26
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds 31W
State: Michigan
Posts: 542
THOR #9522
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Quote:
Originally Posted by 16ACE27
You know you can edit posts for up to an hour after you post it?
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Yes but I can't figure out how on the Android app!
Ah ha found it!
__________________
Pete and Carolynn Foss from Oxford, MI
2018 Four Winds 31W
1999 Aero Cub F-21 trailer
1977 Tioga 24 foot RV
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02-02-2020, 01:42 AM
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#27
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Senior Member
Brand: Thor Motor Coach
Model: Tuscany 40ex
State: Ohio
Posts: 495
THOR #12726
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Just a thought, but have you load tested the starter?
If it cranks slow on full charged batteries you could have a starter going bad and "dragging"
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02-02-2020, 09:33 PM
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#28
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Senior Member
Brand: Thor Motor Coach
Model: 2016 A.C.E. 27.1
State: North Carolina
Posts: 123
THOR #17813
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I've already pulled the batteries, took them to Wal-Mart and they tested them and said they were too low to load test. Took them back home and put them on the charger and they are holding 12.77 volts. Will take them back and see how the load test goes. Thanks for your suggestion.
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02-02-2020, 09:35 PM
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#29
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Senior Member
Brand: Thor Motor Coach
Model: 2016 A.C.E. 27.1
State: North Carolina
Posts: 123
THOR #17813
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I didn't know the engine alternator would charge the house batteries. Is this true?
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02-02-2020, 09:49 PM
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#30
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Senior Member
Brand: Thor Motor Coach
Model: Palazzo 33.2
State: Georgia
Posts: 286
THOR #8078
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I guess it depends on your rig. Mine has a Trombetta relay ( I think also called a BIRD) that connects the chassis and house 12V systems together. When the engine has been running for 2 minutes, the relay is fired and a solenoid connects the 2 systems together. That way the engine alternator charges your house system. It also works in reverse so that shore power will charge your chassis battery. It also is the way your auxiliary start switch works, useful if your chassis battery dies. My relay went bad last year. Once I replaced it the system works well. I verified operation with my volt meter, so yes, my alternator does charge my house batteries on my Palazzo. Nice feature, wonder who thought of it?
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02-03-2020, 12:39 AM
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#31
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.2
State: Missouri
Posts: 1,039
THOR #4687
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Quote:
Originally Posted by Paul0138
Thanks for all your tips I was afraid I would flood it if I primed it too much. to the person who thought it was too hard to prime all you have to do is press the start-stop switch in the stop position before you try and start it.
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No, it is just "hard" for me to be that patient...(I still only get to around 20 seconds then have to try and start it)
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2016 25.2 VEGAS with 2017 Jeep Wrangler AND Two Dogs; Norwegian Elkhound & Morkie (The RV is actually the Dog's)
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02-03-2020, 03:34 AM
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#32
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,993
THOR #14698
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Quote:
Originally Posted by Paul0138
I've already pulled the batteries, took them to Wal-Mart and they tested them and said they were too low to load test. Took them back home and put them on the charger and they are holding 12.77 volts. Will take them back and see how the load test goes. Thanks for your suggestion.
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If your batteries are 12.77 bolts after a recharge I believe they are marginal
at best. It has been my experience that a fully charged battery should have a surface charge of over 12.8 ( the surface charge of a battery is the charge it holds before ANY load has been placed on it) Back in the olden days when cars still had carbs & a set of points they taught us to charge a battery check the voltage then turn on the headlights for about a minute and check voltage again. The headlights pulled the surface charge off the battery & it should read a minimum of 12.8 to be considered ok to leave in the car. A lot has changed since my days at 1970’s era dealerships but flooded batteries technology is still pretty much same.
After 5 years of use in a motorhome I wouldn’t mess around putting them back in even if they did load test out ok. If you plan zero boon docking then they might suffice but I wouldn’t waste the time & effort to put them back in. 5 year old batteries are running on borrowed time
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2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
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02-04-2020, 04:28 AM
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#33
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Junior Member
Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
Posts: 21
THOR #10063
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I am a retired mechanic, the following is a volt to charge state we used for years .... note reading should happen after no load for 20 so minutes.
13.8 charging
12.70 100%
12.58 90%
12.48 80%
12.36 70%
12.28 60%
12.20 50%
12.12 40%
12.04 30%
11.98 20%
11.94 10%
>11.90 fully discharged
check for dead cell
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02-04-2020, 12:20 PM
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#34
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 16,490
THOR #7035
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Quote:
Originally Posted by fluidone
i am a retired mechanic, the following is a volt to charge state we used for years .... Note reading should happen after no load for 20 so minutes.
13.8 charging
12.70 100%
12.58 90%
12.48 80%
12.36 70%
12.28 60%
12.20 50%
12.12 40%
12.04 30%
11.98 20%
11.94 10%
<11.90 fully discharged
check for dead cell
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ftfy
__________________
Ted & Melinda
2016 ACE 27.1
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B BU TOAD
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