Rover v8 injectors what replacements can be used

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Big woof
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Rover v8 injectors what replacements can be used

Post by Big woof »

Hi all I am wanting to change out my worn injectors in my 3.9 v8 discovery Ihave the Lucas type fitted at the moment that have been damaged by a faulty fuel pressure regulator (now replaced the regulator) I have read on various websites that it is possible to upgrade From the Lucas injectors to the later Bosch type from the later gems and motronic injection system.

My problem is that various injectors all cross reference over to the entire v8 range. The Lucas injectors are £200 pounds each from the dealers so I was thinking off buying the Bosch injectors from the discovery 2 v8 part no err 6600 green plastic body injectors I was wondering if anyone had tried this and any thoughts on the results or if this way I would have to have the ecu reprogrammed to manage the injectors thanks Micheal


Land rover discovery 3.9 Hotwire v8 nick named Christine.

DaveEFI
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Post by DaveEFI »

Not heard of the wrong fuel pressure causing damage to the injectors, so I'd say it unlikely. So what makes you think this has happened, and what are the symptoms?

Injectors can be overhauled. Several firms offer this service.

If you would prefer to replace them, the important characteristic (assuming they physically fit) is flow rate. This site gives details of the common ones. If that differs from standard, you would likely need the fuel mapping changed.

http://users.erols.com/srweiss/tableifc.htm
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Big woof
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Post by Big woof »

Hello Dave. The sytpoms are it will struggle to start every under any conditions. Use a fuel treatment/cleaner it will start everytime sometimes a little rough then clear up. With out the fuel treatment it will take two to 3 attempts to start the car.
Rough running a small loss in power, use shell fuel save petrol which is like using fuel treatment it will start up and give quite a bit off power.
When I bought the motor the pipe work to the fuel pressure regulator was off on the back off the engine reconected then pipe work and it was working for quite some time and then it stopped working since replaced the fpr and it is a brand new unit and it now seems to have a slight loss in power what I can't work out is how different petrols affect starting. What I suspect that is happening Is the injectors are leaking fuel as when on the bypass I'm getting popping thourh the exhaust when changing gear my mate said some times when It back fired there was a jet off flame from the back even though all the settings are right on the timing and on the base idle
Land rover discovery 3.9 Hotwire v8 nick named Christine.

DaveEFI
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Post by DaveEFI »

Fuel treatment won't clean contaminated injectors - they need a much more powerful chemical. I'd get them professionally overhauled - much cheaper then new, and equally as good. They will be flow tested too, and the spray pattern checked.

I'd also check the fuel pressure is correct with a gauge - not all new regs seem to be perfect.
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Big woof
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Post by Big woof »

Hello Dave the problem that I have this is my only car it runs everyday for work and the school run for the kids. I can get a set off discovery two injectors I believe part number is err6600 I can buy them for £25 to enable me to get a proper set sorted out or buy a complete reconditioned set.
But I am unsure if the discovery two injectors would work.
Fuel pressure has been checked and the fuel pressure is running to the tolerance off the what is said in the manual.
Thanks Micheal
Land rover discovery 3.9 Hotwire v8 nick named Christine.

DaveEFI
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Post by DaveEFI »

Sorry - can't say if those are ok, or how much work needed to fit them.

Look on Ebay for a secondhand set and have them overhauled? Or ask here?
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scudderfish
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Post by scudderfish »

If you do get them overhauled, send them to this bloke.

http://www.mrinjectoruk.co.uk

I got a set of (4) injectors from another forum, and sent them off for a clean and test. Very pleased with the service.

Regards,
Dave

Big woof
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Post by Big woof »

Hello Dave mate he does seem quite cheap for the injectors I have been looking around for information on the Bosch type off injector that is the same size and shape as I have found out that the err6600 injectors won't fit the fuel rail so it's the later 4.6 injectors in Bosch that people have been talking about
Land rover discovery 3.9 Hotwire v8 nick named Christine.

Big woof
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Post by Big woof »

Dave mate just been reading about the injector cleaning looks like its just a case off a ultra sonic bath and replace the filter baskets and injector seals for the injectors might have a go at it and buy the recon kit see if that helps and instead off replacing the injectors repair them and give them a clean and recondition that might be better then replacement
Land rover discovery 3.9 Hotwire v8 nick named Christine.

scudderfish
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Post by scudderfish »

Good plan, keep us posted.

Regards,
Dave

Big woof
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Post by Big woof »

I will do mate it seems the logical thing to do as from what I have seen on these sites that it is just a refined petrol type cleaner is used. So I thought a good dose off injector cleaner with the filter baskets out off them new filter baskets put in and new seals. Apart from testing the injector seloniods that seems to be the only thing that is done to them.
I might get a second hand set to try first and see what happens with the ones out off the car at least that way I can take my time and get them right first.
Land rover discovery 3.9 Hotwire v8 nick named Christine.

ramon alban
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Post by ramon alban »

Hello Micheal

Add this to your reading material - very low DIY cost.

Home Workshop Injector Maintenance

• All the components needed for injector overhaul can be sourced from a local injection specialist

Or from SU/Burlen Fuel Systems (Tel: 01722 412500) under the following Burlen part numbers and description

Or from Burlen Fuel Systems website,

http://burlen.co.uk/

navigate to SU pages and make a site search for the following Rover SD1 Efi Fuel Injector Service Parts

Image

BFB103Q10 - 10 Filter baskets - £5.38

BPC13Q10 - 10 Pintle caps - £2.70

ABF407 - 7.6mm X 2M Fuel Hose - £14.08

BHC1214 - 100 Clamps - £28.00

Prices seen June 2009 plus p&p plus VAT

Note re clamps:- approx 30 req'd for full system refurbishment - buy locally or resell excess to reduce cost.

• Cleanliness is a key factor particularly as there is the possibility of metal debris whilst removing the old hoses.

• Cut off the swaged hose collar at a sharp angle using suitable snips or a very fine junior hacksaw blade and discard the old fuel hose

• Cut off the old pintle caps with a sharp blade being careful not to mark the body of the filter.

• Clean all around the area where the pintle cap fits with fine wire wool and metal polish.

• Clean up the body of the injector and the area where the manifold rubber seals fit with a wire brush, wire wool and polish.

• Blow off any debris and wash the injector in a container of clean “Panel Wipe”.

• Last in this sequence, pull out the old injector filter using a wood screw or small "easy-out" gently screwed into the open end of the filter, bathe the injector again and blow away any more debris with a 100 psi airline.

• Access to an ultrasonic cleaner may significantly improve the cleaning process and if thought necessary such equipment is readily available at low cost on popular auction sites.

• Press a new filter into place using a drill press or vice, protecting the pintle end of the injector with suitable hole in a hardwood block.

• Press on a new pintle cap using a small hardwood block with another small hole to protect the pintle end, ensuring the cap starts off upright to prevent uneven fit.

• It’s probably best to think this next part through and make up a rig meeting the following requirements.

• Temporarily connect a 6” length of hose to the input end of the injector with a hose clip, and connect a 3 volt supply to the injector connector using a switch to pulse the injector on and off.

• Note: It’s possible to use a 12 volt supply but the injector must be protected by a 6 ohm resistor wired in series with the supply and switch.

• Pour a small quantity (about one fluid ounce) of Panel Wipe into the open end of the hose and connect a 30 psi compressed air source securely to the hose sufficient to withstand the pressure.

• Ensure there is suitable lighting to the rig so that one may clearly see the resulting spray pattern.

• Pulse the injector coil briefly with the switch and observe an orderly conical spray pattern with no dribbling.

• Pulse the injector several times and see that the above is repeatable with a clean start and finish to each pulse.

• If the spray pattern is disorderly or dribbles then the injector is probably still contaminated, damaged (or blocked) and should be replaced.

• Complete the above for all the injectors.

• Cut new hose lengths for each injector and ensure there is no rubber debris contaminating the hose interior.

• Couple the new hose to each injector using the appropriate hose clips.

• Assemble the injector hoses to the fuel rail using similar clips.

• Ensure that the hose clip screws are facing in a convenient direction to provide easy access for screwdriver tightening in their final position.

• Fit the other various hose lengths to the fuel rail and the job is complete.

Conclusions

If the ECU can be described as the heart of the Rover SD1 Efi System then the eight fuel injectors can be described as the being at the sharp end.

No matter how well the rest of the system and its associated sensors are set up, if the injectors don’t deliver the fuel effectively, in an orderly spray pattern and correctly atomized then there will be a loss in efficiency.

Even though the injectors are virtually bullet-proof they will obviously have a finite lifetime, variously estimated by the manufacturers to be over 200k miles.

Even so, the supporting components such as the resistor pack and local wiring/connectors are more likely to fail within that time frame.

When the injectors are ready for professional cleaning or replacement then expect he cost to be anything from £150 for cleaning to £500 for new injectors.

Alternatively there are many opportunities to purchase S/H sets complete with fuel rail on popular auction sites that will serve to provide additional units which could then be cleaned as described and the best ones retained for spares.

When I devised the above home-brew process the cost per car was less than £50 and all the bits needed for the rig were found in my workshop.

Plus it was good fun.

Big woof
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Post by Big woof »

That's very very informative is that I think defiantly that i will have to buy some second hand injectors to carry this out. Defiantly think that it is worth doing and changing the filter baskets out makes sense incase the previous owners haven't been changing the filters as they should have been doing. I know in the land rover manual it says that the fuel filter is a 4 yearly change item but for me it seems to make sense to change the fuel filter every year. I normally do a major major service every year where every filter is changed regardless and every setting on the engine is set properly to the stettings from land rover.
I just think that the injectors being overhauled would be the icing on the cake and be better for the engine.
Land rover discovery 3.9 Hotwire v8 nick named Christine.

ramon alban
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Post by ramon alban »

M, before you get too far down the injector repair road, please re-review two of my conclusions?
Even though the injectors are virtually bullet-proof they will obviously have a finite lifetime, variously estimated by the manufacturers to be over 200k miles.

Even so, the supporting components such as the resistor pack and local wiring/connectors are more likely to fail within that time frame.
Especially because as much as 80% of typical Efi problems can be attributed to connection corrosion/failure and air leaks into the inlet manifold.

Such knowledge clearly applies to injectors, considering how many connections are involved and the propensity for rubber seal rings to deteriorate.

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Post by Robrover »

Ford Motorsport Mustang yellow top C302 injectors work well

http://www.fiveomotorsport.com/Injector_SetsENGLAND.asp

Many here use Bosch GEN 2 or GEN 3 19lbs injectors, better atomisation, smoother idle, sharper pick up being commonly experienced. .... Look at the USA market ... Another seller called midwestmustang sells them for $100 (for all 8) ... (Ford mustang yellow top injectors)

GEN 3 may be slightly superior - link for fitting the GEN 3 injectors .....
http://www.aulro.com/afvb/classic-ra...r-results.html

GEN 2 are easier to fit as they require no modification though.

GEN 3 yellow do not have a top clip groove so you have to add another o ring on the bottom a bit larger than the o ring already there to stop them being forced out of the rail with fuel pressure.

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