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cummins 6BT/12V questions

 
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Old 12-26-2018, 11:09 PM
Brandon Tepper
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cummins 6BT/12V questions

Decided to start a new thread for cummins, even though this is a ford forum site. ill just post any more questions i have into here.

My question would be about the fuel pump. I just read a post that stated that just like everything else, the fuel pump for a 6BT is strictly mechanical and is mounted to the side of the block. Can anyone confirm this? is it false? When i do the swap into my 79 F3fiddy, i would like to keep the original fuel pumps, as that would make a few things simpler.
 
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Old 01-24-2019, 10:40 AM
Exwhyze
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6BT has a mechanical pump very similar to the IDIs but I've heard of 1st gen cummins owners adding a supplemental fuel pump like IDI owners like to do when the main one starts crapping out.

I wish you the best of luck with your swap, please document the swap and take lots of pictures!
 
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Old 02-03-2019, 01:21 AM
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Yes the 12v Cummins does have a mechanical lift pump on the side of the block.
there are 2 different types though. The earlier VE pump engines use a pump similar to a carbed gas engine, with an output of 8-10 psi. The P7100 equipped engines have a higher pressure plunger style pump.
Either type can be deleted in favor of an electric pump, but the VE pump cannot handle input pressure much more than 10-12, while the P7100 is capable of withstanding upwards of 100 psi.
 
 


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