Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > 700/900 Series General
Register Members CarsBlogs Help Calendar Mark Forums Read

Notices

700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

intank fuel pump

Views : 3333

Replies : 227

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old May 24th, 2019, 21:20   #51
atco
Senior Member
 

Last Online: Oct 15th, 2019 20:34
Join Date: Apr 2009
Location: cardiff
Default fuel pump

well for one there,s just under half a tank of fuel in the tank and on taking of the pump i used a two wire tester on a pp3 battery under the car and there was no sign of life so i took the pump of to do a propper test with a bigger battery and a tester with clips . no life at all.so i replaced for the second time.just a quick question .on turning the key to start if there is no fuel going thro the fuel pump will it burn out due to no fuel getting in the pump.also i found the two wires were the wrong way around on the coil while checking the connections tonight.so i changed them back over one is red there uther wire is blue i think the blue was on the possitive.ive tried to start after changing the wires but still not starting. checked for a spark on taking the lead of under the distributor from the coil and putting it on the rocker cover and i have a spark so thats good news
atco is offline   Reply With Quote
Old May 24th, 2019, 21:33   #52
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Today 20:43
Join Date: May 2012
Location: Lakenheath
Default

Point 1.

A PP3 battery is nowehere near big enough to run the fuel pumps - either of them!

Point 2.

It'll never run now! Put the coil conections back AS THEY WERE!!!

Just hope you haven't caused any damage to the ignition amp by connecting the coil the wrong way.

Add 4L of methylated spirits to the petrol in the tank, put the coil connections back as they were get a fully charged car battery (NOT a PP3 ) and try it. Might take some time to get the meths through but that will get rid of any condensation in the tank.
__________________
Cheers

Dave

Next Door to Top-Gun with a Rover 827 Sterling and a 765 GLEa V6!
Laird Scooby is online now   Reply With Quote
Old May 24th, 2019, 22:02   #53
atco
Senior Member
 

Last Online: Oct 15th, 2019 20:34
Join Date: Apr 2009
Location: cardiff
Default fuel pump

i think your not under standing me a bit.to check the original pump i took it of and put it on a pp3 with two wires connected to it.there is just about the right amount of power in this small battery to prime the pump.but it was no good.having tested on a bigger battery.now the coil wires have a plus and minus the red was on the minus and the blue was on plus witch seems to be the wrong way around to me but if you care to explain to me ill switch them back around again or is there eny photos as to were they sit on the coil think the coil connections were on the wrong way to start so if thats the case then its already sustained damaged .4L meths in the tank tomorow ok thanks dave
atco is offline   Reply With Quote
Old May 24th, 2019, 23:14   #54
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Today 20:43
Join Date: May 2012
Location: Lakenheath
Default

Quote:
Originally Posted by atco View Post
i think your not under standing me a bit.to check the original pump i took it of and put it on a pp3 with two wires connected to it.there is just about the right amount of power in this small battery to prime the pump.but it was no good.having tested on a bigger battery.now the coil wires have a plus and minus the red was on the minus and the blue was on plus witch seems to be the wrong way around to me but if you care to explain to me ill switch them back around again or is there eny photos as to were they sit on the coil think the coil connections were on the wrong way to start so if thats the case then its already sustained damaged .4L meths in the tank tomorow ok thanks dave
No, you're not understanding me - a PP3 is only 9V and not capable of delivering the current the pumps need! FACT.

Volvo wired the igniton coil with the blue and red trace wires to +ve, red with white trace to -ve. FACT.
__________________
Cheers

Dave

Next Door to Top-Gun with a Rover 827 Sterling and a 765 GLEa V6!
Laird Scooby is online now   Reply With Quote
Old May 24th, 2019, 23:56   #55
atco
Senior Member
 

Last Online: Oct 15th, 2019 20:34
Join Date: Apr 2009
Location: cardiff
Default fuel pump

so its red to + and blue to negetive is that right dave.because i havent got a white wire
atco is offline   Reply With Quote
Old May 25th, 2019, 00:09   #56
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Today 20:43
Join Date: May 2012
Location: Lakenheath
Default

Quote:
Originally Posted by atco View Post
so its red to + and blue to negetive is that right dave.because i havent got a white wire
NO!!!!!!! Blue to +++++++++++
__________________
Cheers

Dave

Next Door to Top-Gun with a Rover 827 Sterling and a 765 GLEa V6!
Laird Scooby is online now   Reply With Quote
Old May 25th, 2019, 00:10   #57
atco
Senior Member
 

Last Online: Oct 15th, 2019 20:34
Join Date: Apr 2009
Location: cardiff
Default fuel pump

got it dave its just there is no blue and red trace wire its just blue red and white i have got so ill swop back tomorow ok thanks for the input dave just on a great big learning curve and learning lots mate speak soon as i get that meths in the tank .cherrs
atco is offline   Reply With Quote
The Following User Says Thank You to atco For This Useful Post:
Old May 25th, 2019, 06:19   #58
aardvarkash10
Master Member
 

Last Online: Today 08:33
Join Date: Sep 2016
Location: Auckland
Default

I'm going to need a bigger bag of popcorn
aardvarkash10 is offline   Reply With Quote
The Following 2 Users Say Thank You to aardvarkash10 For This Useful Post:
Old May 25th, 2019, 08:11   #59
mocambique-amazone
Master Member
 

Last Online: Oct 15th, 2019 14:49
Join Date: Nov 2008
Location: small village in the north of Germany
Default

Point 1: Dave is right:
blue is +
white/red (white) is -

Do you own a multimeter?
Know how to use?

Point 2

Neverever run a fuel pump dry!
Even don't try it. The fastest way to destroy a fuel pump.

later more.

I'm hungry, no popcorn, breakfast now :-)

Kay
mocambique-amazone is offline   Reply With Quote
The Following User Says Thank You to mocambique-amazone For This Useful Post:
Old May 25th, 2019, 08:43   #60
aardvarkash10
Master Member
 

Last Online: Today 08:33
Join Date: Sep 2016
Location: Auckland
Default

Perhaps this may help.

Seriously.

Its incredibly hard (not to mention expensive) to attempt any diagnosis if you don't know the basics of what you are looking at or trying to achieve.

This course could be a hundy well spent. Hell, you've spent that much already and you still don't know whats wrong, let alone got it going.
aardvarkash10 is offline   Reply With Quote
The Following 2 Users Say Thank You to aardvarkash10 For This Useful Post:
Reply


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

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

Forum Jump


All times are GMT +1. The time now is 21:14.


Powered by vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.