SV: Re: SV: [ROVERNET - UK] Re:Rough running SD1
Tillberg Jan (VN P-SQC)
jan.tillberg at sqc.se
Thu Oct 11 12:21:13 BST 2007
Hi Kent! Thanks for your answer. Yes, you are right in your assumptions. I now realise that I've already used an ordinary coil. Is the ballast resistor the small thing coupled directly to the coil? Jan
-----Ursprungligt meddelande-----
Från: "Kent Kinard" <kkinard at wcc.net>
Till: "rovernet at lyris.ccdata.com" <rovernet at lyris.ccdata.com>
Skickat: 2007-10-10 20:42
Ämne: Re: SV: [ROVERNET - UK] Re:Rough running SD1
Hi Jan,
I assume you are using the fuel injection system that came
on the 1988 Range Rover and that the ECU is the "4CU" type
in use in the UK at that time. This system has many
similarities to the 4CU system used on NAS SD1's but one
major difference. The NAS ECU's were made to work with
catalytic converters (I think that is true of the
Australian market cars as well). The NAS ECU's will not
work on UK/Euro systems without cats. Other than that,
the faults are the same.
Yes, you may use a points type distributor as a substitute
for your electronic unit provided you also use the points
type coil and ballast resistor (or suitable resistance
wire). I have run K&N filters on the 4CU system in the
past with no problems.
Roverly,
Kent K.
On Wed, 10 Oct 2007 17:15:47 +0200
<jan.tillberg at sqc.se> wrote:
> Hi there everyone!
>
> I have the similar problem with my EFI. I put a
>rangerover 3,5 l V8 from 1988 into my -73 P6. Perhaps I
>was asking for trouble.. Anyway, It has a week idle, runs
>unevenly and sometimes weak. I've put a K&N airfilter -
>so perhaps it gives to little resistance? I will test
>the system according to your advices.
>
> My question is: Can I use an old contact breaker
>distributor to compare with the electronic one? Or will
>something in the ECU finally have had it?
>
> I heard that the EFI is basically the same as the Bosch
>fuel injection found in 1988 Volvos - anyone knows what
>parts are interchangable?
>
> I have never run the engine before I bought it but it's
>restored mechanically.
> Cheers
>
> Jan Tillberg
>
> Stockholm Sweden
>
>
>
> -----Ursprungligt meddelande-----
>Från: rovernet-bounces at lyris.ccdata.com
>[mailto:rovernet-bounces at lyris.ccdata.com] För Dermot
>Harvey
> Skickat: den 10 oktober 2007 16:42
> Till: rovernet at lyris.ccdata.com
> Ämne: [ROVERNET - UK] Re:Rough running SD1
>
> My first guess would be partially clogged fuel
>injectors, but it's worth checking your fuel line
>pressure first. Find an old mechanical oil pressure
>gauge. Depressurize the system and attach the oil
>pressure gauge to the cold start fuel injector. Take the
>hose from the air filter to the airflow meter off. Stick
>a rag in the airflow meter. This will turn on the fuel
>pump when the ignition is on. You should get a steady
>reading of about 40 psi. Turn the ignition off and watch
>how slowly the pressure drops - the longer it takes the
>better.
> If your fuel pressure is OK you should remove the fuel
>injectors and test them for flow rate and spray pattern.
>This is a messy procedure.
> I have a test rig using an old fuel pump and pressure
>regulator. The injectors should deliver 125 to 150 ml per
>minute and you should have a conical spray pattern. You
>might be able to find a shop that has testing and
>cleaning equipment for fuel injectors. Sometimes the
>injectors can be cleaned.If not you can buy new or
>rebuilt ones.
> Before you put everything back together, be sure your
>fuel filters are reasonably new and carefully check the
>rubber fuel lines. If there is any sign of checking or
>cracking you should replace the rubber lines making sure
>only to use high pressure fuel injection hose.
> The other possibility is that your ignition module is
>faulty. I think by now most people are using Lumenition
>or Pertronix modules, but if you have the original module
>inside the distributor it has probably about had it.
>
> Good Luck!
>
> Dermot Harvey
> Spectral Kinetics
>
>
> _______________________________________________
> rovernet mailing list
> rovernet at lyris.ccdata.com
> To unsubscribe, go to this web page, look near the
>bottom and follow instructions:
> http://mailman.nipltd.com/mailman/listinfo/rovernet
> Back-up list and photos at:
> http://autos.groups.yahoo.com/group/Rover_net/
>
> _______________________________________________
> rovernet mailing list
> rovernet at lyris.ccdata.com
> To unsubscribe, go to this web page, look near the
>bottom and follow instructions:
> http://mailman.nipltd.com/mailman/listinfo/rovernet
> Back-up list and photos at:
> http://autos.groups.yahoo.com/group/Rover_net/
_______________________________________________
rovernet mailing list
rovernet at lyris.ccdata.com
To unsubscribe, go to this web page, look near the bottom and follow instructions:
http://mailman.nipltd.com/mailman/listinfo/rovernet
Back-up list and photos at:
http://autos.groups.yahoo.com/group/Rover_net/
More information about the rovernet
mailing list