Running without fuel pin?

[Kernel]

Has anybody tried it? Don't necessarily think I would try it, but I haven't seen any threads on the subject. Is it possible to do so like those who run plateless in "P" pumps? Risk for internal damage due to to much travel, etc?



Scott

 

[formula]

Not a good idea. The small pin inside the afc housing will likely fall out and cause the afc housing to fill up with fuel and leak out of the atmospheric vent. I've been down that road before..... let me tell you that upon seeing the leak, the pucker factor went right through the roof :-laf Managed to push the little pin back in and all was good



Sean

 

[Greenleaf]

I have found that the "PIN" cannot move "TOO" far as the internal lever will bottom on the boss that holds the "PIN". Thus it cannot move too far. If however the internel linkage snaps the pin OUT and INTO the bore... . anbd there is no "CONTROL CONE" there to stop it, the "PIN" then has moved far enough that the boat tail end is at or past the O ring which seals the assembly. Thus one would develop a leak.



Is that clear at all???



Besides there would be nothing to regulate the fueling rate/per lb of boost. Not something you would really want unless you simply want smoke for show... ... ... .



Clear as mud , right?



You cannot move the internal pump linkage "TOO" far as we often times modify that to move it... ..... well... ... ... too far.



Sorry if I confused you. You need to understand how it all works an know the true terms of the pieces parts or it gets lost in translation.



GL

 

[Kernel]

I think I understand what you are saying, the "fuel pin" that most refer to is the "control cone" and the "pin" you refer to is that which rides along the control cone/fuel pin. Am I correct?



Scott

 

[cerberusiam]

You would probably get the same effect as removing the aneroid spring. Smoke like a battle ship until the boost came up. That and you will get fuel into the aneroid then all over the engine and bay.

 

[BushWakr - RIP]

Another thought is the supply side of the VE... . if the guide pin is protruding too far and/or it actually extends deep into the AFC housing the fuel leak will result in a drop (small as it may be) on the supply pump side.

This supply side pressure has a direct effect on the pressure variation(s) within the high pressure head.



just a thought... .



pb... .



edit: if you really want to try something along this line, then have a modified pin installed, crank the smoke screw all the way down until you can assure the guide pin will shoot out and immediately onto/into the deepest part of the cone... this will give you the same results, more or less, but will prevent the guide pin from actually 'bailing' on you... you may even need to use a longer screw if the smoke screw is too short... I've never checked that myself.

 

[JLEONARD]

fuel into the aneroid

Don't they make a cream for that! :-laf



Anybody ever shorten that pin? Or make a shorter pin?

GL,Pastor... you guys do that? Or are you sworn to secrecy.....

 

[Greenleaf]

Brother Jay......

I tell you everything, man.











GL

 

[BushWakr - RIP]

Ever wonder why some pumps are "lazy"..... and others are easy to crank up... ????



You guys need to have an open mind and not think about just one application for these pumps/engines... . know what I mean. .



PB... .

 

[Greenleaf]

Yep, sorta like my father who has this boat with two gas guzzling Chryslers. How sweet it would be to drop in two 5. 9's. I'd be the expanding the "SMOKEHOUSE" diesel line.

 

[JLEONARD]

How sweet it would be to drop in two 5. 9's

FYI there is an outfit in Texas that sells a marinizing kit to convert one of our truck Cummins to marine. In the marine application these are good up to about 220 hp. Above that the duty cycle will take them out early.

Jay