My PE4200 just took a dump!

[Ncostello]

Stanadyne makes a lift pump (aka transfer or booster pump)... AND a prime/purge pump. The operate differently with the purge pump used only for priming and not for continouus use. It can be pumped through.



I was only looking at using the Stanadyne pump setup for priming... and it would be mounted "post" or after the DTT gear pump. The DTT gear pump doesn't need any assistance and does not need pre-filtering. Its not prone to failure due to water in fuel or particle debris as electric pumps/motors are. The DTT pump in my scenario would simply push fuel through the final filter as normal and the purge pump wouldn't affect full flow through rates.

 

[rweis]

OH ok, I thought Stanadyne only made the lp type of pump for the FM100. I will go back and refresh my memory on their web site.



Bob Weis

 

[Ncostello]

Stanadyne Products



See the setup in the photos with the silver electric motor on top. Thats the purge pump. Also... the hand primer works wonderfully too. I have one in my tool box. I ended up not using it on mine as I have an electric pump. However the one time I did use it it worked fine. It definately allows full flow through it.

 

[Edward]

Ncostello



Neil did you get the electric or the hand primer?



Edward

 

[Ncostello]

I bought the hand pump but decided not to use it as the electric Carter pump does a fine job of priming itself and the filters. Its a push button pump on top of the filter. The hand pump would also prohibit the use of the top mount fuel heater. You can still get a side mount fuel heater but I really wanted the higher wattage top mount model.



Just for clarification... I don't have either of Stanadynes electric pumps. I'm refering to our beloved lift pump on my setup when I talk about an electric pump.

 

[rweis]

FYI and only because the thread is about Carter lp's



I changed my ff last sat. Just for couriosity I left the ff drain open and "bumped" the starter to turn on the OEM lp. I wanted to see what the flow was like with no head pressure.



I realize it does not fill the filter, only the outer ring of the ff. It did take 2 attempts to start to purge the air from the ff and push the air through the injectors (at least that is where I think the air goes?)



The ff fuel drain (which I have changed to tygon extending down below the starter) ran at full cross section to the tygon and at a fairly decent pace. I did not measure the seconds to fill a gallon container, but maybe that might be a way to do so without taking half the fuel system apart. Might be a way to help someone compare OEM lp's?



Just an idea.



Bob Weis

 

[Edward]

Bob

The bypass/pressure regulator on the side of the VP44 (big banjo bolt) has a small hole in it about the size of a straight pin. This hole bleeds fuel continuously. When you prime the filter by bumping the starter the air in the filter can escape through this hole and be forced back to the fuel tank via the fuel bypass line.



Edward

 

[rweis]

Edward,



OK, so if I bump the starter about x times then all the air should be pushed back to the tank without it going through the VP? or it will all go through the VP and be replaced again by fuel?



What value is the x?



Will this allow what ever air that has entered the VP to be replaced by fuel and after x bumps of the starter she should start without hesitation or extended (30 seconds or so) cranking?



I was under the impression that after introducing air into the system from a ff change that the air in the ff was pushed on to the VP and caused the difficulty to start without hesitation.



Maybe I'm not waiting long enough after bumping the starter 3 or 4 times for the pressurized air to course through the VP and back to the tank?



Bob Weis

 

[Ncostello]

FYI and only because the thread is about Carter lp's

Actually Bob... this thread is about PE4200 pumps!



I can hook up 12V direct to the lift pump w/o bumping my starter. I can let it run for 10 minutes straight but it wont make any difference. If I get in the truck and try to start it normally... it wont. I always have to hold the pedal to the floor and crank for 5 seconds solid... get a puff of white... and off she goes then.



Thus... bumping the starter won't ensure all air gets out. Some of it naturally gets shoved to the injectors on my truck and won't come out. Once I got it all out and it started normal as if I didn't change the filter at all. But thats rare.

 

[rweis]

That's what I do too. Last time it took two start attempts. Sometimes one, sometimes two.



Thought Edward might have a different method from what he was explaining about air being passed back to the tank.



Also thought since DC now rates the flow of the lp in volume per time before they will change it, it might be an easy way for someone to rate their lp before going to the dealer by catching the filter drain and rate that in volume per time as well without taking anything apart.



Bob Weis



Sorry about the Carter pump thing.

 

[Edward]

Bob

All I have to do is cycle the pump three times after a filter change and mine fires right up. (Cycle the pump = bump the starter)

Bob all the air goes through the VP44 bleed valve back into the tank.



Edward

 

[rweis]

FYI



You might WANT to drop by the DTT web site late afternoon EST today (wednesday 06/15/04). I called DTT to see if any info was forth coming on the new pump, and apparently today is the day. I don't know how much info, but the web site was being worked on as we were speaking at 14:00 EST.



Now back to the regularly scheduled thread about PE4200 pumps.



Bob Weis

 

[TxDieselKid]

Originally posted by rweis

FYI



You might WANT to drop by the DTT web site late afternoon EST today (wednesday 06/15/04). I called DTT to see if any info was forth coming on the new pump, and apparently today is the day. I don't know how much info, but the web site was being worked on as we were speaking at 14:00 EST.



Now back to the regularly scheduled thread about PE4200 pumps.



Bob Weis

link

 

[JR2]

Anyone have any solid pricing info?? I saw some prices on DTR that sounded good, only about what four lift pumps would cost me. I guess I would have to buy the plumbing too, but what the heck I won't use the fancy SS lines this time.