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Ive tried everything and i cant get this thing turning over fast enough.
I charged both batterys all night.
I used a big battery charger with boost on it.
I plugged in the block heater .
Someone told me to check for a decompresssion lever?
Get your voltmeter, and measure the voltage on one of the batteries, then measure the voltage on the other battery. That will tell you what you have. If what you are showing us isn't skipping anything between the two batteries, then I suspect you have two 6 volt batteries hooked up in series.
If it is, you might have a deep cycle battery in there, (the larger one) and those really have no place in a truck that size anyway. They're more of a marine application.
Check the battery and starter cable connections. Clean any corrosion off. Clean all the ground connections. Get new batteries, like I posted before, and it'll spin over like there's no compression.
The big batterys like a Cat or a big machine battery.
The other ones just a normal pickup battery but its big.
Can you tell from my diagram where to hook up a boost.
I got a big charger with "Boost" and I dont think Im hooking it up right because it doesnt make and diffrence.
This is how things are hooked up.
Where should i put my booster cables?
The red lines are battery cables.
The batterys are diffrent.
Your drawing shows series. If 12volt batteries, then you are getting 24volts across both batteries. Parallel is like when u jump start a reg 12volt battery and hook pos to pos and neg to neg with result of 12v to other battery.
with normal chargers you will need two of them one for each battery
you are hooked up for 24 volt
you would hook up jumpers off of 12 to each battery + to +, - to -
By the post configuration I would say the big battery is a 4D possibly if it is 12 volt
I borrowed another big battery.
I cleaned all the posts and hooked everything up.
Hit the starter button and she started right up.
It purrs , hardly any smoke or anything.
Im having air issues now the brakes donr seeem to want to air up.
But at least i can move it around now.
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