Is there a particular spot i should or should not put it?
Cheers.
eraser ·
below the fuel tank
BiX ·
Under the fuel tank. Make sure you wire it so it auto cuts if the engine stops, also make sure you check you entire fuel system, lines fitings etc while you at it.
barls ·
Check whether it is a push or suction pump as this also makes a difference to location,but I agree with both of the other replies.
eraser ·
Quick question.. but how does this soild state pump work?? Solid state means it has no moving parts right? so how the hell does it work :P
mickmick ·
eraser wrote:Quick question.. but how does this soild state pump work?? Solid state means it has no moving parts right? so how the hell does it work :P
Not sure but my friend put one in his Kombi and all is good. This might be a silly ? but do you block the old pump off or take it out or anything?
skelaaleks ·
take the old pump push rod and bakerlite block. And make up an allloy blank off plate
(its all about the weight reduction)👍
aleks
Joel2 ·
be carefull if the bakelite flange is tight in the case
they can snap off in the case real easy and its a real PITA to get the remains out
Is there a particular spot i should or should not put it?
Cheers.
You can place it anywhere... front or back...
I placed Mine under the fuel tank on the front wall
I have a switch under the dash that I can turn it off with..
its hooked thru the ignition, so the key has to be on for power to the switch and then to the pump..
they are a good pump and I have used the same style for over a decade with no problems.
The pump needs to be mounted under the tank and should also be mounted at 45deg...............so that the fuel enters from the bottom and exits out the top....hope that makes sense !
mickmick ·
So i should get an auto electrician to hook it up through the ignition then i guess along with the horn. I think i get what you mean with the 45deg too Craig.
Joel2 ·
best to wire it up with a saftey cut out
so if ur in a prang and the engine stalls the fuel pump doesnt keep running
i did this first time by using the charge light from the alt to switch a relay
as long as the alternator was spinning the fuel pump ran
but i found a better method
fuel pump relay from an 80s EFI car works well
just takes the tach signal from the coil
BiX ·
There is an of the shelf relay that is used for LPG setups. It also primes the system when you switch on the ignition. Ie it runs the pumpf ro about 3 secs.
68AutoBug ·
eraser wrote:Quick question.. but how does this soild state pump work?? Solid state means it has no moving parts right? so how the hell does it work :P
I don't know either....
All the electric fuel pumps I've seen tick when they are pumping....
its strange that an old looking design, metal pump should be labelled as solid state...
Lee
aintgotitmusthaveit ·
Guessing....
Your mechanical pump is using a push rod to move a diaphram that pumps the fuel.
These ones use magnets that are establshed by passing a current though a coil of wires.
By changing the poles your able to make a metallised diaphram bounce back and forth ( just like the push rod does on the old style pump but now you use the magic of a magnet).
Thats why these things are metal!
They say no moving parts burt really there is no rotating parts. the diaphragm is still pumping.
Craig, why 45 degrees?- Should not matter.
BiX , Where do I find these relays?
Joel ·
i used the stock Bosch fuel pump relay from a VL commondore
shaihulud ·
Most electric fuel pumps are not in the engine bay, probably because they don't like the heat or they are push pumps.
I'd fit it under the tank and definitely fit a cut off system linked to the generator output.
If you link it to the generator output, it will cut the fuel if the engine stops and the ignition stays on.
That also means that the pump won't pump until the engine is cranking over when starting.
That should not be a problem. To need to crank the engine a bit before a start is better than an instant start, as it gets the oil pressure up a bit before the engine starts.
That's why engines that start instantly usually clatter until the oil pressure gets up.
Some years ago I needed an electric pump to get me back to the city when the mechanical pump on my Hillman Hunter failed. It was clearly marked as not to be fitted anywhere near the battery. Why? I don't know. Maybe sparks?
What you probably need is a low pressure Facet pump.
As to the old pump, take the push rod out, re-fit it and blank off the fuel holes.
Joel ·
been there and tried that one, works well cept the fuel pump wont run when cranking, you need to wire in a primer button
the genny doesnt spin fast enough when cranking for the charge light to pull a relay in
1303Steve ·
Hi
I went to my FLAPS today and asked them to get me in tachometric relay, they tried all their suppliers, nobody had heard of them.
Joel, do you have a part number for the VL relay?
Steve
HotRodMatt ·
You can get the tachometric relays direct from CBB 02 4722 9313
Joel ·
yep, will grab it for you next time i'm down there
its not the sort of thing a flaps would carry, you would need to order one through a dealership spare parts department.
dont trust a second hand one
early EFI water cooled vws use a similar relay
Craig Torrens ·
aintgotitmusthaveit wrote:Craig, why 45 degrees?- Should not matter.
cause that's what the instructions say !😂
68AutoBug ·
Craig Torrens wrote:
aintgotitmusthaveit wrote:Craig, why 45 degrees?- Should not matter.
cause that's what the instructions say !😂
But I never read instructions...
they make life too difficult...
and its difficult enough when you don't read instructions...
lol
LEE
Joel ·
1303Steve wrote:Hi
I went to my FLAPS today and asked them to get me in tachometric relay, they tried all their suppliers, nobody had heard of them.
Joel, do you have a part number for the VL relay?
Steve
😉
not sure which one is part #
HotRodMatt ·
Make it easy for yourself...
CBB have all the stuff you need and they'll know what you are after and how to use it properly.
"Electric Fuel Pump, Tachometric Relay and Fuel Shut Off Diode. Reliable and safe fuel delivery."
1303Steve ·
Thanks Joel
Holley make a relay that works on oil pressure.
Matt, I already have a pump, I will call to see if I can buy the relay.
Steve
HotRodMatt ·
Yep all available separately...
Camo ·
HotRodMatt wrote:Make it easy for yourself...
CBB have all the stuff you need and they'll know what you are after and how to use it properly.
"Electric Fuel Pump, Tachometric Relay and Fuel Shut Off Diode. Reliable and safe fuel delivery."
That system looks like it just uses a fuel tap type shut off, you need something that will actually shut the fuel pump off in my opinion.
Kev
Joel ·
thats an electric shut off solenoid
Camo ·
Joel wrote:thats an electric shut off solenoid
And it shuts off what ???? Fuel or power ??????
matberry ·
^^^ shuts off fuel. Commonly used in racing where rules state fuel shut off required.
1303Steve ·
Hi
They also use those solenoids on petrol/LPG systems, they turn the petrol off when LPG is running.
Steve
1303Steve ·
Hi Joel
I bought one of these Bosch relays like your today PN # 0 280 230 001. It didn't have a wiring diagram on the side, do you have any info on this before I start trawling through Commodore forums?
Steve
68AutoBug ·
I've never heard of one either Joel...
I have an electric fuel pump located under My tank connected thru a switch to the ignition...
so I can switch it off at any time...
I also have the fuel cutoff solenoid from a gas car...
but I don't know whether I will use it or not...
as when the pump is switched off..
NO FUEL gets thru the pump...
as I did today, to drain the bowl in the carby
just switched the pump off and let the engine idle until it ran out of fuel...
I use a standard relay to switch the pump on/off..
cheers
LEE
Joel ·
it works exactly like a normal relay but it looks for a tacho signal from the coil
if the engine stalls or dies in an accident theres no tacho signal so it stops the pump
Camo ·
Steve,
had this saved for a while, hope its what you are after.
Kev
Relay-------Description--------------------Connect To
15------------Switched------------------------ +12VCoil (+)
31------------Ground---------------------------Chassis Ground
87------------Fuel Pump Power---------------+12V Directly from Battery
30------------Switched/Fused Power---------Fuel Pump (+)
31b----------Trigger----------------------------Input Coil (-)
68AutoBug ·
Joel wrote:it works exactly like a normal relay but it looks for a tacho signal from the coil
if the engine stalls or dies in an accident theres no tacho signal so it stops the pump
thats some special relay Joel...
I was thinking of putting in circuit breakers at the battery
so any short circuit will be taken out there...
Learn something every day Joel...
cheers
LEE
68AutoBug ·
Camo wrote:Steve,
had this saved for a while, hope its what you are after.
Kev
Relay-------Description--------------------Connect To
15------------Switched------------------------ +12VCoil (+)
31------------Ground---------------------------Chassis Ground
87------------Fuel Pump Power---------------+12V Directly from Battery
30------------Switched/Fused Power---------Fuel Pump (+)
31b----------Trigger----------------------------Input Coil (-)
Hows Your Beetle Going Kev??
also how's the health?
have You bought anything from the USA?
cheers
LEE Noonan
68AutoBug ·
I have seen electric fuel pumps located in the engine bay..
they also seem to work there...
so long as they don't get too hot...
the metal pumps need to be mounted on rubber otherwise you hear every tick tick tick....
cheers
LEE
Camo ·
We are a bit off topic here, but -
Hows Your Beetle Going Kev??
also how's the health?
have You bought anything from the USA?
cheers
LEE Noonan[/color]
Hi Lee,
Still nothing happening on my car now for the last few months. Cant get motivated to do much at all.
Health wise, feeling reasonable but as said - low motivation.
Bought a couple of small things about 6 weeks ago when it was at 81 cents.
Cheers, Kev
1303Steve ·
Hi Kevin
Thanks for that, I sent an email to Bosch as well and they sent an email in return with a PDF.
Steve
1303Steve ·
Hi Kevin
My pin numbers differ from yours, most likely a different relay.
Just got another email from Bosch
50: Start Signal (from starter or ignition switch crank position)
87: Switched 12 volts (out)
87b: switched 12 volts (out to pump)
31: Ground
1: negative side of coil (trigger to keep relay engaged - engine running signal)
30: +12 volts supply (switched 12 volts in )
15: +12 volts supply form ignition key