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Leaking Fuel return line

willie59

Administrator
Joined
Dec 21, 2008
Messages
13,645
Location
Knoxville TN
Occupation
Service Manager
Static voltage on a 12V wet battery is 12.6 volts since each cell has 2.1 volts, 2.1 x 6 (cells) = 12.6. And that may vary depending on battery condition, but is not a finite indicator of battery condition. Load is better indicator of condition as you can have a battery, and Gagu has done a sort of "load test". Stated he had a static voltage of 12.7, but wouldn't crank (load). Boosted it and started right away. Perfect example of failed battery that has proper static voltage but fails under load. Battery has gone south.
 

HarleyHappy

Senior Member
Joined
Sep 30, 2020
Messages
1,251
Location
So NH
Occupation
Welder/Mechanic
Usually, if I am replacing battery or batteries on anything, I go completely through cables, hot and ground, all the way to the starter.
Sometimes just cleaning up ends, cleaning grounds and verification of good star washers. Then either spraying that red crap on the connections and terminals or using NO-OX. I don’t care for the dialectric grease as it gets everywhere.
 

Gugu

Member
Joined
Jan 29, 2025
Messages
10
Location
Wildwood, AB, Canada
Battery sitting should be 12.5 to 12.8 volts. Sometimes can be 12.4 and still be good. Your battery might not be the problem. Best to load test it.
Thanks Dave. I am not familiar with “load test”. Could you give me a hint? What else could it be? After glowing there isn’t a crank, tried it even several times. As soon as I connect the booster, it cranks after glowing and starts immediately.
 

Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
15,335
Location
Canada
Any auto parts place that sells batteries can test your battery. The testing tool is pretty simple. It puts a heavy power draw on the battery and measures the voltage drop. The battery needs to maintain a certain voltage during the test. It does sound like you have a bad battery.
 
Last edited:

Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
15,335
Location
Canada
Take your battery with you to buy a new one. They can test your battery right then. If it's bad they can apply your core charge and you don't have to come back again. If it tests good you've got some wiring gremlins.
 

HarleyHappy

Senior Member
Joined
Sep 30, 2020
Messages
1,251
Location
So NH
Occupation
Welder/Mechanic
I used to have one of the older pull the trigger and watch the amp draw on a scale and smell the arc but alas, someone must have needed it more than me, as it grew legs.
After 20 years without one, I finally bought a newer computer one, off of Amazon for 25 bucks.
Now I do battery tests on every battery I own yearly in the fall.
 

Gugu

Member
Joined
Jan 29, 2025
Messages
10
Location
Wildwood, AB, Canada
Good afternoon, thanks for your input on the batter. Bobcat recommends a battery with 1,000 CCA and 185 RC. I only can get 950 CCA ($250) or 925 CCA ($99, $150). Is it worth it to spend the money on the 950 CCA battery? Thanks in advanc!
 
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