Fuel Pump needed for large boot Monaro
Discussion
Hi Guys, as per the title ,my starting problem has been now linked to the in tank fuel pump ,bleeding down fuel line pressure back into the tank.
New pumps for the later,in boot fuel tank seem to be easily and fairly cheap available,circa £200.
However, I'm struggling to find the correct pump for my early CV8 2004.
Can anyone help?
Simon.
New pumps for the later,in boot fuel tank seem to be easily and fairly cheap available,circa £200.
However, I'm struggling to find the correct pump for my early CV8 2004.
Can anyone help?
Simon.
astonman said:
Hi Guys, as per the title ,my starting problem has been now linked to the in tank fuel pump ,bleeding down fuel line pressure back into the tank.
New pumps for the later,in boot fuel tank seem to be easily and fairly cheap available,circa £200.
However, I'm struggling to find the correct pump for my early CV8 2004.
Can anyone help?
Simon.
Just throw a Walbro replacement in.New pumps for the later,in boot fuel tank seem to be easily and fairly cheap available,circa £200.
However, I'm struggling to find the correct pump for my early CV8 2004.
Can anyone help?
Simon.
And if you mean pressure bleeding off when the pump is off, it's not really a problem, and should not cause any difficulties starting. Maybe just a fraction of a second longer than normal
https://www.glencoeltd.co.uk/ti-automotive-fuel-pu...
Don't fit anything larger than their basic 255 unless you have an uprated FPR etc
The pressure pops straight up to around 60psi at the manifold end, then rapidly drops.
You can assist starting by turning the key for a second, then turning it back,and then back on.But that only helps to prime for starting,the pressure drops right off and the whole engine,every cylinder runs weak.
You can assist starting by turning the key for a second, then turning it back,and then back on.But that only helps to prime for starting,the pressure drops right off and the whole engine,every cylinder runs weak.
astonman said:
The pressure pops straight up to around 60psi at the manifold end, then rapidly drops.
You can assist starting by turning the key for a second, then turning it back,and then back on.But that only helps to prime for starting,the pressure drops right off and the whole engine,every cylinder runs weak.
If the crank is turning, the pump will be energised.You can assist starting by turning the key for a second, then turning it back,and then back on.But that only helps to prime for starting,the pressure drops right off and the whole engine,every cylinder runs weak.
On Key on, the pump will energise for a few seconds to prime, then off again if you do not start cranking.
All perfectly normal.
Doing the key sequence you mention, is completely pointless. Just turn the key and start the car.
If you're saying there are fuel pressure issues when the pump is actually running, then that is a different matter. Although yes the pump does have an internal check valve so the system should hold pressure when off. But it really makes negligible difference to starting, barely a split second.
astonman said:
The fuel pressure drops off, dramatically within moment of turning the engine over.
So,a fuel check valve issue?
If the engine is turning over, then the fuel pump should be runningSo,a fuel check valve issue?
If the fuel pressure drops with the pump off, then it is either a regulator issue....that would be a genuine problem. Or the check valve, which is built into the pump. Not really a problem
Because if the pump is running, and FPR working ok, you will have pressure.
Turn the ignition on,pump works,the Fuel pressure goes up to 60 psi and then drops off very rapidly ,before you even turn the engine over.AAS diagnosed issue with in tank pump.
It a large boot car,it's Not US spec,so presumably Rock Auto won't have the pump assembly I need?
The engine is running weak on both banks and all plugs show weak mixture.
I can see stuff in Oz eBay ,but it's difficult to be absolutely sure ,it's the right assembly.
I've been quoted £500 from Walkinshaw,for the pump,but even they may need to get one from Oz.
It a large boot car,it's Not US spec,so presumably Rock Auto won't have the pump assembly I need?
The engine is running weak on both banks and all plugs show weak mixture.
I can see stuff in Oz eBay ,but it's difficult to be absolutely sure ,it's the right assembly.
I've been quoted £500 from Walkinshaw,for the pump,but even they may need to get one from Oz.
Edited by astonman on Monday 27th November 16:17
astonman said:
Turn the ignition on,pump works,the Fuel pressure goes up to 60 psi and then drops off very rapidly ,before you even turn the engine over.AAS diagnosed issue with in tank pump.
It a large boot car,it's Not US spec,so presumably Rock Auto won't have the pump assembly I need?
The engine is running weak on both banks and all plugs show weak mixture.
I can see stuff in Oz eBay ,but it's difficult to be absolutely sure ,it's the right assembly.
I've been quoted £500 from Walkinshaw,for the pump,but even they may need to get one from Oz.
You don't need the entire assembly. Just fit a universal Walbro kit.It a large boot car,it's Not US spec,so presumably Rock Auto won't have the pump assembly I need?
The engine is running weak on both banks and all plugs show weak mixture.
I can see stuff in Oz eBay ,but it's difficult to be absolutely sure ,it's the right assembly.
I've been quoted £500 from Walkinshaw,for the pump,but even they may need to get one from Oz.
Edited by astonman on Monday 27th November 16:17
Can't AAS supply and fit a pump if they diagnosed it ?
Whilst you don't need to buy from abroad, this
https://www.ebay.com.au/itm/HOLDEN-HSV-Monaro-V2-2...
Fitting a pump is basic stuff.
https://www.ebay.com.au/itm/HOLDEN-HSV-Monaro-V2-2...
Fitting a pump is basic stuff.
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