mechanical to electrical fuel pump conversion question - Suzuki Forums: Suzuki Forum Site
Suzuki Forum Suzuki Forums

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Suzuki Forums: Suzuki Forum Site > Suzuki Models > Suzuki Jimny, Sierra & Samurai Forum
Register Home Forum Active Topics Photo Gallery Garage Search Today's Posts Mark Forums Read Auto EscrowAuto LoansInsurance Advertise

Suzuki-Forums.com is the premier Suzuki All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-19-2010, 06:58 AM   #1 (permalink)
Newbie
 
Join Date: Jan 2010
Location: Pto. Montt, Chile
Posts: 16
Gallery: 0
benq889 is on a distinguished road
Default mechanical to electrical fuel pump conversion question

Hi, I have an 88 sammy with stock engine. The mechanical fuel pump is giving me trouble so I decided to put an electrical one in there. I 've found some conversion guides including Ack's.

My question is, can I just throw any electrical fuel pump on there? The only pumps I've found down here are for fuel injected engines (Mitsubishi, Nissan Sentra) and I'm worried about the high PSI of these pumps. If I understood correctly I only need 4-10 PSI while these pumps have upwards of 30 or 40 PSI.

Thanks.
benq889 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-19-2010, 10:04 AM   #2 (permalink)
Senior
 
zooki4x4's Avatar
 
Join Date: Aug 2009
Location: Laurel Fork, VA
Posts: 150
Gallery: 0
zooki4x4 is on a distinguished road
Default

30 to 40 psi will be way to much. It will over ride the float and flood fuel everywhere. I'm not sure if there is a way you could lower the pressure enough for the carb. I run a weber carb now on my samurai and have a pressure regulator in the line set at just one and a half pounds comming from the stock fuel machanical fuel pump. It might be possible to put a tee in the line between the electical pump an the carb. With a regulator between the tee and side carb set to low pressure and the other end of the tee running back into the return line to the tank. The pump will run all the time but it might keep enough fuel to the carb side to work. Then again you might have to use a smaller return line to the tank side to keep a little back pressure in the line so the carb regulator won't cause all the fuel to just run the return route. I'm just guessing here and I have been wrong before.
zooki4x4 is offline   Reply With Quote Quick reply to this message
Old 02-19-2010, 10:14 AM   #3 (permalink)
Newbie
 
Join Date: Jan 2010
Location: Pto. Montt, Chile
Posts: 16
Gallery: 0
benq889 is on a distinguished road
Default

Thanks for the info. I did find an appropriate pump, a UC V4 is what they call it here, gives 3 psi. I'll try to find a regulator in order to drop it to 1.5 psi. No return line from the carb though, do I just plug the line with liquid metal or something similar?

Last edited by benq889; 02-19-2010 at 10:25 AM.
benq889 is offline   Reply With Quote Quick reply to this message
 
Old 02-19-2010, 10:53 AM   #4 (permalink)
Senior
 
zooki4x4's Avatar
 
Join Date: Aug 2009
Location: Laurel Fork, VA
Posts: 150
Gallery: 0
zooki4x4 is on a distinguished road
Default

Congrats on the find. With just 3psi it maynot require a return line and just stops when max pressure is reached.
zooki4x4 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  Suzuki Forums: Suzuki Forum Site > Suzuki Models > Suzuki Jimny, Sierra & Samurai Forum

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Suzuki Forums: Suzuki Forum Site forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:22 AM.



Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.