RR Electrics Advice

[LRHybrid100]

G'day Guys,

Well after one of the hottest days ever in March in Sydney (39c) my 1987 RR decided to play up.

It just lost power and the engine stopped while going around a corner. I rang the NRMA and they towed me home saying it was the fuel pump after checking that all was well with the spark.

His reasoning was he poured fuel into the manifold and it started for a moment. Furthermore I also noticed that the light under the bonnet was also out.

After returning from work early - ready to do a late night fixing her I just cranked her over and started first time!!! The under bonet light was now also working!!!

Does anyone know what wiring line the under bonnet light is wired to? I'm thinking that something on that line stopped it starting - fuel pump relay?

Any advice would be appreciated - THX in advance.

BR LRH.

[Timmo]

Not sure about the wiring, but disco had a similar thing lately, and a mechanic mate got it going by tapping the fuel tank with a rubber mallot where he figured the pump would be (forward centre i think). Sounds like the pumps can just freeze up from time to time. Mine happened a few times so I got a new fuel pump installed, bout $400 at Graeme Cooper, perfect ever since.

[strange_rover]

Also not sure about the wiring but our 89 Rangie has had a second fuel pump installed externally. It is a commodore 3.8 electric fuel pump. The set up uses a 3 way tap just near the tank and also a button inside. If we have a problem with the RR pump I just pull over, turn the tap then push the button inside and the ext pump takes over. I know its not a fix for your problem now but it is obviously a problem that a few people have had, so it might be worth fitting a second pump.
Just something on a completely different note, we had a problem with the 3.5inj cutting out on and off and I tried everything to fix it, fuel filter, used second pump, new leads, spark plugs, air filter and nothing worked. In the end our mechanic (who used to own the vehicle) just pushed on the wires that attach onto the side of the dissy (ignition module I think) and we havent had a problem since. He said that it is common for this to come loose and just needs to be pushed on when you check the oil the make sure.
Hope you find the problem soon!! style_emoticons/<#EMO_DIR#>/smile.gif
Shano style_emoticons/<#EMO_DIR#>/biggrin.gif

[Pierre]

I would think the only common thing would +12V. Check the battery terminals? Check that large stud (not me, lioness!) on the firewall where +12V enters the cabin space and is distributed to all and sundry - take care there, don't short anything to ground - best to do it with the battery disconnected.

Re fuel pump, doesn't VN Commodore EFI pump fit the RR tank? I had some idea that it was a very close facsimile, but I might be wrong.

[one_iota]

Vapour Lock?

[one_iota]

Sorry I'm being obtuse again:

http://www.hyperdictionary.com/dictionary/vapour+lock

[landrovermick]

I saw a bloke vapour lock once - laying on the gropund fitting after a forced march.......

micko

ill get to 200 posts tonight if i have to post to myself

[landrovermick]

I saw a bloke vapour lock once - laying on the gropund fitting after a forced march.......

micko

ill get to 200 posts tonight if i have to post to myself

[landrovermick]

woops doubled up .......


aaaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhg gggggggggggggggggggghhhhhhhhhhhhhhhhh


bad day at the office - again :twisted:

[one_iota]

style_emoticons/<#EMO_DIR#>/biggrin.gif Gropund:

www.hyperdictionary.com/dictionary/gropund

Don't go there.

But seriously.

What connection can there be between the bonnet light and fuel delivery on a hot day (except Lucas the prince of darkness). There is a chance that the two events are not related and that the only connection is the hot weather.

Start with the obvious and elminate the variables.