1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

24v pistons in 12v motor

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Old May 23, 2011 | 07:51 PM
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Default 24v pistons in 12v motor

What kind of injectors would need to be used for 24v pistons in 12v motor?
 
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Old May 23, 2011 | 08:04 PM
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It just wont work. The bowl in 24v pistons is in the center, and 12V pistons are off set. This is because a 12V's injector comes down the head at an angle, and isn't centered in the bore/on the piston.
 
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Old May 24, 2011 | 12:41 PM
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If you used a 24v head they would work, correct?
 
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Old May 24, 2011 | 12:57 PM
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If memory serves me right you can do that but you have to do something funky with the gaskets for the water ports or something like that
 
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Old May 24, 2011 | 01:03 PM
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Aren't the 24v head bolts longer as well? I've been reading up on swap project with a 12v lower and 24v head so any good info that can be passed along.....
 
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Old May 24, 2011 | 03:39 PM
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[QUOTE=Scott@Alligator;756925]If memory serves me right you can do that but you have to do something funky with the gaskets for the water ports or something like that[/QUOTE

I was thinking along these lines too
 
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Old May 24, 2011 | 03:57 PM
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I just cant remember all the particulars
 
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Old May 24, 2011 | 04:53 PM
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why not pull the 12v motor, install a 24V motor and then put all the timing cover and stuff from the 12V in the truck the install custom lines, injectors etc. would seem just about as easy to me than pulling a 12V motor, installing 24V pistons, making the head gasket and head work, re-install motor then install custom lines and injectors.
 
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Old May 24, 2011 | 05:03 PM
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I agree
 
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Old May 25, 2011 | 04:05 AM
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Originally Posted by Benjamin
why not pull the 12v motor, install a 24V motor and then put all the timing cover and stuff from the 12V in the truck the install custom lines, injectors etc. would seem just about as easy to me than pulling a 12V motor, installing 24V pistons, making the head gasket and head work, re-install motor then install custom lines and injectors.
I agree, and you will have less chance of jacking something up.
 
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