Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-02-2014, 13:12   #1
Registered User

Join Date: Apr 2007
Location: Humacao, Puerto Rico
Boat: Beneteau 456
Posts: 429
Images: 8
Which electrical lift pump to use?

I have a small 5kw diesel generator with a z400 2 cylinder kubota engine that runs at 3600 rpm. The original mechanical lift pump is cracked and leaking. I would like to replace it with a Facet electrical lift pump but not sure which one. Phasor generators use the Cube Solid State Facet pumps with success. The question is which one fits my little engine? I called Facet and they recomended the 40185 model with a lift of 36" min and a flow of 32gph at 9 to 11.5 psi. It seems like 32 gph flow is kind of high but I am not sure. The generator is about 25 feet away from the tank and about 2 feet higher. Any suggestions?
__________________

__________________
avazquez is offline   Reply With Quote
Old 26-02-2014, 15:25   #2
Registered User

Join Date: Apr 2007
Location: Humacao, Puerto Rico
Boat: Beneteau 456
Posts: 429
Images: 8
Quote:
Originally Posted by avazquez
I have a small 5kw diesel generator with a z400 2 cylinder kubota engine that runs at 3600 rpm. The original mechanical lift pump is cracked and leaking. I would like to replace it with a Facet electrical lift pump but not sure which one. Phasor generators use the Cube Solid State Facet pumps with success. The question is which one fits my little engine? I called Facet and they recomended the 40185 model with a lift of 36" min and a flow of 32gph at 9 to 11.5 psi. It seems like 32 gph flow is kind of high but I am not sure. The generator is about 25 feet away from the tank and about 2 feet higher. Any suggestions?
Ideas
__________________

__________________
avazquez is offline   Reply With Quote
Old 26-02-2014, 15:39   #3
Registered User
 
Stu Jackson's Avatar

Join Date: Jan 2011
Location: Cowichan Bay, BC (Maple Bay Marina)
Posts: 6,389
Re: Which electrical lift pump to use?

32 gph should work just fine.

FLIX!!! of NAPA Fuel Pump #610-1051 While these are for 21 hp engines, the fuel return takes care of the quantity of fuel on your generator anyway, right?
__________________
Stu Jackson
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
Stu Jackson is online now   Reply With Quote
Old 26-02-2014, 18:16   #4
Registered User

Join Date: May 2006
Posts: 463
Re: Which electrical lift pump to use?

Quote:
Originally Posted by avazquez View Post
I have a small 5kw diesel generator with a z400 2 cylinder kubota engine that runs at 3600 rpm. The original mechanical lift pump is cracked and leaking. I would like to replace it with a Facet electrical lift pump but not sure which one. Phasor generators use the Cube Solid State Facet pumps with success. The question is which one fits my little engine? I called Facet and they recomended the 40185 model with a lift of 36" min and a flow of 32gph at 9 to 11.5 psi. It seems like 32 gph flow is kind of high but I am not sure. The generator is about 25 feet away from the tank and about 2 feet higher. Any suggestions?

I. A bit rusty on this but I did something similar so bear with me with these thoughts....

Firstly I have the feeling that 9 -11 is a bit high, don't they make one with a little less, I think I have a Walbro with 4 -7 but could be wrong.
Next, you have to fix the mechanical pump or you might run the risk of pumping diesel into the sump through the cracked rubber diaphragm .
Next , the new pump should be able to suck through it when it is off, this way it works as a backup.
Next, your reasons for making this change are for the wrong reasons, by making this addition, you will add an easier method of bleeding which is an added safety feature in an emergency as bleeding becomes a much quicker activity. Plus there is another method of providing the engine with diesel in an emergency.
Next, the design should allow the pump to be switched off, so it is not on all the time. The mechanical pump should remain as the main pump.
__________________
Fuss is offline   Reply With Quote
Old 26-02-2014, 19:43   #5
Registered User

Join Date: Apr 2007
Location: Humacao, Puerto Rico
Boat: Beneteau 456
Posts: 429
Images: 8
Quote:
Originally Posted by Fuss
I. A bit rusty on this but I did something similar so bear with me with these thoughts.... Firstly I have the feeling that 9 -11 is a bit high, don't they make one with a little less, I think I have a Walbro with 4 -7 but could be wrong. Next, you have to fix the mechanical pump or you might run the risk of pumping diesel into the sump through the cracked rubber diaphragm . Next , the new pump should be able to suck through it when it is off, this way it works as a backup. Next, your reasons for making this change are for the wrong reasons, by making this addition, you will add an easier method of bleeding which is an added safety feature in an emergency as bleeding becomes a much quicker activity. Plus there is another method of providing the engine with diesel in an emergency. Next, the design should allow the pump to be switched off, so it is not on all the time. The mechanical pump should remain as the main pump.
Well the mechanical pump works fine but its body has a hairline crack and leaks oil from the bottom part. The diaphragm is ok. The idea is to remove it and cap the mounting hole with the appropriate kubota cover as seen inthe following picture of the Phasor. This is exactly what I want to do but not sure which Facet to use.
Attached Thumbnails
Click image for larger version

Name:	image-499999430.jpg
Views:	239
Size:	292.0 KB
ID:	76853  
__________________
avazquez is offline   Reply With Quote
Old 26-02-2014, 22:19   #6
Registered User
 
lonesoldier0408's Avatar

Join Date: Jun 2013
Boat: Luger, Southwind, 21
Posts: 359
Re: Which electrical lift pump to use?

Quote:
Originally Posted by avazquez View Post
Well the mechanical pump works fine but its body has a hairline crack and leaks oil from the bottom part. The diaphragm is ok. The idea is to remove it and cap the mounting hole with the appropriate kubota cover as seen inthe following picture of the Phasor. This is exactly what I want to do but not sure which Facet to use.
Could the mechanical pump be repaired with a small amount of JB Weld. I've repaired a tractor engine block with it..


Sent from my KFTHWI using Tapatalk HD
__________________
lonesoldier0408 is offline   Reply With Quote
Old 28-02-2014, 11:07   #7
Registered User

Join Date: Apr 2007
Location: Humacao, Puerto Rico
Boat: Beneteau 456
Posts: 429
Images: 8
Quote:
Originally Posted by lonesoldier0408
Could the mechanical pump be repaired with a small amount of JB Weld. I've repaired a tractor engine block with it.. Sent from my KFTHWI using Tapatalk HD
Can't bet on JB Weld. The pump is almost imposible to reach once the generator is installed in the boat. I either get the replacement or replace with electrical.
__________________
avazquez is offline   Reply With Quote
Old 28-02-2014, 19:58   #8
Registered User
 
lonesoldier0408's Avatar

Join Date: Jun 2013
Boat: Luger, Southwind, 21
Posts: 359
Re: Which electrical lift pump to use?

Quote:
Originally Posted by avazquez View Post
Can't bet on JB Weld. The pump is almost imposible to reach once the generator is installed in the boat. I either get the replacement or replace with electrical.

Yes, I sometimes forget the access issues aboard. Electric also makes priming much easier. Get one that allows for pressure regulation, to stay within manufacturers specification for the injection pump and fuel system.
__________________
lonesoldier0408 is offline   Reply With Quote
Old 28-02-2014, 22:59   #9
Registered User

Join Date: Apr 2007
Location: Australia
Boat: Island Packet 40
Posts: 1,378
Images: 7
Re: Which electrical lift pump to use?

You could go with the electric and put a small header tank somewhere and gravity feed to the genset injector pump. My main engine is Kubuto and they supplied me with a small electric lift pump unfortunately they did not list a part number on the invoice and there is nothing on the pump itself. Works OK though and I have just completed about 9,000 nm with it.
__________________
RaymondR is offline   Reply With Quote
Old 01-03-2014, 18:36   #10
Registered User

Join Date: Jan 2010
Location: Pacific Coast Mexico
Boat: Outbound 44
Posts: 37
Re: Which electrical lift pump to use?

I have a single cylinder kobuta, E300. I just ordered a Facet 40176 for it. Similar sized gensets use it. Waiting for it to arrive in the mail.

I replaced the old pump last year, thinking bigger was better. The new pump (not the Facet) gets so hot you can't touch it.

Good luck
__________________
pwilliams is offline   Reply With Quote
Old 02-03-2014, 07:15   #11
Registered User

Join Date: Apr 2007
Location: Humacao, Puerto Rico
Boat: Beneteau 456
Posts: 429
Images: 8
Quote:
Originally Posted by pwilliams
I have a single cylinder kobuta, E300. I just ordered a Facet 40176 for it. Similar sized gensets use it. Waiting for it to arrive in the mail. I replaced the old pump last year, thinking bigger was better. The new pump (not the Facet) gets so hot you can't touch it. Good luck
That one sounds more logical. I ordered it too. I know facet is used in airplanes so it must be reliable.

Click image for larger version

Name:	image-3923827811.jpg
Views:	387
Size:	171.8 KB
ID:	77011

My engine is a two cylinder z400.
__________________
avazquez is offline   Reply With Quote
Old 03-03-2014, 13:17   #12
Registered User

Join Date: Mar 2014
Posts: 5
Re: Which electrical lift pump to use?

If you decide to go with a electric lift pump, maybe you could throw a dummy light in the dash to let you know if the lift pump is not running for whatever reason. It's not going to be good for the injection pump to be pulling fuel from the tank on it's own.

Mechanical pumps are nice as you will have flow so long as the engine is running and you can avoid having more electrical stuff. Electric pumps are nice if you need to prime the fuel lines, purge the fuel filter ect.

Maybe something like this would work:

JEGS Performance Products 41373 JEGS Warning Light Kits - Free Shipping on All Orders @ JEGS
__________________

__________________
Mikerodrig27 is offline   Reply With Quote
Reply

Tags
cal, electric, electrical, lift

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:34.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.