6.7l p-pump conversion
- Thread starter winkdemon
- Start date
MTP Diesel
Clutch man
check out these guys thay have the front gear housing for you Keating Machines
MTP Diesel
Clutch man
you just pull the gear off the 6.7 crank and take one from a 12 or 24V and press it back it will fits just fine, we got a 6.7 crank in a 12V and fits like OEM with shorter pistons :woohoo:
1-5-3-6-2-4
Low-Tech Redneck
Subscribed
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pac_master_7
New member
I think this would be cool, but it just seems like you'd be going backwards. Would you still be able to keep the electronic injectors? Or will you basically have to make a 6.7 24v version of an old 12v? Either way it will definitely be different. Interested in seeing the end result.
1-5-3-6-2-4
Low-Tech Redneck
Not backwards at all, when you have a Ppump 12v thats just not cutting it anymore. and you have a well built 6.7L with no fuel system or electronics land in your lap. 
pac_master_7
New member
Then I would guess you wouldn't be going backwards. Lol. Sounds like a fun project.
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Mark Nixon
No Savior among the flesh
You don't NEED a $1200 timing case, just $50 in tools (metric transfer punches and good drill bits) to add and relocate a few holes and the locator (dowel) pins.
You also need to build a nose for the front of the pan, simple fab.
Helpful hint: Once you replace the cam (or it's gear) and crank gear, use the back lash value from the cam and crank gears meshing to set the pump gear's lash value.
Use that to set the lash on the pump gear and locate the cover accordingly.
Once the cover is properly located, use transfer punches to mark hole/dowel centers and drill accordingly.
I'm right in the middle of doing one with a VE (Backwards? Not really!), but the cover mods and bolt holes needing drilled are identical for the P-7100.
Mark.
You also need to build a nose for the front of the pan, simple fab.
Helpful hint: Once you replace the cam (or it's gear) and crank gear, use the back lash value from the cam and crank gears meshing to set the pump gear's lash value.
Use that to set the lash on the pump gear and locate the cover accordingly.
Once the cover is properly located, use transfer punches to mark hole/dowel centers and drill accordingly.
I'm right in the middle of doing one with a VE (Backwards? Not really!), but the cover mods and bolt holes needing drilled are identical for the P-7100.
Mark.
1-5-3-6-2-4
Low-Tech Redneck
Now I've heard the pump will not clear the head with a stock 12v gearcase.
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1-5-3-6-2-4
Low-Tech Redneck
Why's that funny?
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zstroken
For $$$ your name here
It won't, unless u cut the intake off.
RonA
Active member
Because some things seem like a good idea at the time. More trouble than it's worth, but dumping the common rail for a mechanical pump is not a step backward.
Last edited:
Mark Nixon
No Savior among the flesh
The "secret" to maintain a stock appearance?
Use a VP head with the steam holes added in and the P-pump clears.
Like the VE one I'm doing, there's a small cast-in boss near the timing case that needs removed to get the P-7100's raised index boss to clear the block.
You'll also need to put a small notch in the front face of the block to clear the timing pin housing to get the cover to set flush to the block.
It just takes some drilling, filling and centering, but you can make a mechanical cover fit a commonrail, it's just the nose of the oil pan that's tricky.
Mark.
Use a VP head with the steam holes added in and the P-pump clears.
Like the VE one I'm doing, there's a small cast-in boss near the timing case that needs removed to get the P-7100's raised index boss to clear the block.
You'll also need to put a small notch in the front face of the block to clear the timing pin housing to get the cover to set flush to the block.
It just takes some drilling, filling and centering, but you can make a mechanical cover fit a commonrail, it's just the nose of the oil pan that's tricky.
Mark.
Mark Nixon
No Savior among the flesh
Some pics to illustrate;
The boss that's in the way, on BOTH the VE and the P-7100, both cases in place...
VE:
P-7100:
Timing pin housing relief point:
Here's 2 pics, 1 each, of the underside of a 6.7 head and a VP head, note that the 6.7 head has much more casting in the lower end of the intake closer to the pump area, the grinding marks on the VP head is to facilitate minor clearance issues on a VE....
6.7 head:
VP head:
Here's shot of an oil pan laid onto a 6.7 block, with a VE timing case in place:
Example of a couple of holes that'll need filled, drilled and tapped:
Mark.
The boss that's in the way, on BOTH the VE and the P-7100, both cases in place...
VE:
P-7100:
Timing pin housing relief point:
Here's 2 pics, 1 each, of the underside of a 6.7 head and a VP head, note that the 6.7 head has much more casting in the lower end of the intake closer to the pump area, the grinding marks on the VP head is to facilitate minor clearance issues on a VE....
6.7 head:
VP head:
Here's shot of an oil pan laid onto a 6.7 block, with a VE timing case in place:
Example of a couple of holes that'll need filled, drilled and tapped:
Mark.
6.7silverbullet
New member
Good info