Just wait until all the injectors check out as ok.
Fast running out of things that can cause a misfire if the injectors are good!
Project Bentley
- Thread starter JRS
- Start date
Fast running out of things that can cause a misfire if the injectors are good!
At the end of the day engines are all simple devices - they need air, fuel and spark at roughly the right time and they'll run.
Got spark. Timing ought to be spot on. Pretty sure that there's air getting through the inlet manifold. Which leaves fuel.
Got spark. Timing ought to be spot on. Pretty sure that there's air getting through the inlet manifold. Which leaves fuel.
Gosh, what a surprise! It's still running like ****, at least at anything approaching WOT. I've had the injectors out of cylinders three and four on the drivers side (A) bank. Gary blew air through them with a compressor. The one from cylinder A3 had a fairly weird spray pattern, so today I swapped the A3 and A4 injectors.
And yet A3 is still dead - if you pull the HT lead off while the engine is running, the engine note doesn't change at all. So to summarise - cylinder A3 dead, cylinder A3's injector suspect, move suspect injector to different cylinder, cylinder A3 still dead.
What. The. Hemorrhaging. ****?
***edit***
It's getting a bit bad now. I can generally stay patient with cars misbehaving, but I have to admit to having properly lost my **** over the last two days. Full on raging, throwing tools around, bear-with-sore-head deal. I once said on here that I was extremely bored by the Crewe factory idea of 'good enough' - I'm now beyond 'bored' and into 'white-hot furious' territory.
And yet A3 is still dead - if you pull the HT lead off while the engine is running, the engine note doesn't change at all. So to summarise - cylinder A3 dead, cylinder A3's injector suspect, move suspect injector to different cylinder, cylinder A3 still dead.
What. The. Hemorrhaging. ****?
***edit***
It's getting a bit bad now. I can generally stay patient with cars misbehaving, but I have to admit to having properly lost my **** over the last two days. Full on raging, throwing tools around, bear-with-sore-head deal. I once said on here that I was extremely bored by the Crewe factory idea of 'good enough' - I'm now beyond 'bored' and into 'white-hot furious' territory.
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Literally all I did was take the A3 and A4 injectors out of the inlet, swap them over, and reconnect the fuel lines. And the problem stayed exactly where it was.
Had them all out again this morning - confirmed that we've still got spark, confirmed that both A3 and A4 injectors flow to at least some degree, still got a dead cylinder. I should add that we've got compression (120psi on all 8 cylinders). I just don't get it.
Yeah, did that this morning.
They aren't powered, they're just constant flow injectors stuffed into the manifold - pressure is varied by the fuel distributor according to the amount of air coming into the engine, nothing particularly advanced. The injectors themselves are just spring-loaded valves with a nozzle on the end - once the fuel pressure is high enough (3.6bar in the case of the R-R/Bentley L Series engine) the valve opens and they spray fuel.
I'd have taken the A3 injector out and ran the engine to see what it's doing, but with the hard fuel lines going from the fuel distributor to the injectors it's a bit hard to run them like that. And I'd rather not bend the hard line in case it fractures!
I do need to go through and rehost the missing photos.
Quick update- will do a proper post soon, with photos.
We were scouting for parts the other day and found someone selling the whole fuel distributor and air sensor assembly. So Gary pulled the trigger and purchased. Then we spent some time today tearing into the engine bay to swap the systems out.
I'd love to be able to tell you that we got it running today. But we didn't - rain, a lack of charge in the battery, rain, a bit more rain, snow, hail and finally rain put paid to things. But tomorrow, come hell or high water, I'm getting this ******* thing running on all eight cylinders!
We were scouting for parts the other day and found someone selling the whole fuel distributor and air sensor assembly. So Gary pulled the trigger and purchased. Then we spent some time today tearing into the engine bay to swap the systems out.
I'd love to be able to tell you that we got it running today. But we didn't - rain, a lack of charge in the battery, rain, a bit more rain, snow, hail and finally rain put paid to things. But tomorrow, come hell or high water, I'm getting this ******* thing running on all eight cylinders!
After charging the battery overnight, I got the car running this morning and took it for a drive. It's running a lot smoother
Gary over text message to me this afternoon said:I've just gone to have a go at the old fuel unit. I went to have a look at the adjuster screw and found bugger all in the hole. No blanking screw no adjuster screw, just a ******* hole straight from the outside of the body. I don't think that helped the fuel mix. What a load of ******* *******
And that, ladies and gentlemen, may just explain some of the trouble we've had....
The end
It's over.
The car has a new owner, a very nice chap who lives up in Cheshire - not all that far from where Gary picked the car up back in November '08 as it turns out.
So, where was I? After I replaced the air/fuel distributor it went back to the garage to do final setup and tuning. And in fairness they got it damned near spot-on. All the power is back, the fuel economy is...passable
p), and they apparently even found time to improve the steering and brakes if my last drives were anything to go by. There was a spot of unfortunateness, as we happened to notice a day after it came home that the drivers side wing and sill had been damaged somehow (looked for all the world like it had slipped off a trolley jack or lift). But the garage owner (our friend Michael) happens to be a rather impressive body and paint man so he sorted it along with the small amount of bubbling that had appeared around the badge on that wing.
And yeah. The buyer came down to Gary's house tonight with the folding, had a quick look around and that was it. He seemed pretty much instantly smitten with it - he's gotten himself a very decent car for the money in my opinion, and I hope that with everything we've done over the years he's now got something that will happily trundle around between fuel stops (
) causing no bother.
Gary is pretty much set on a Mercedes as a replacement. He'd actually spotted a really, really nice W211 E500 (a later one with the 5.5 engine) but unfortunately it had sold before the Bentley could change hands. A W219 CLS is still an option as well.
It's over.
The car has a new owner, a very nice chap who lives up in Cheshire - not all that far from where Gary picked the car up back in November '08 as it turns out.
So, where was I? After I replaced the air/fuel distributor it went back to the garage to do final setup and tuning. And in fairness they got it damned near spot-on. All the power is back, the fuel economy is...passable
p), and they apparently even found time to improve the steering and brakes if my last drives were anything to go by. There was a spot of unfortunateness, as we happened to notice a day after it came home that the drivers side wing and sill had been damaged somehow (looked for all the world like it had slipped off a trolley jack or lift). But the garage owner (our friend Michael) happens to be a rather impressive body and paint man so he sorted it along with the small amount of bubbling that had appeared around the badge on that wing.And yeah. The buyer came down to Gary's house tonight with the folding, had a quick look around and that was it. He seemed pretty much instantly smitten with it - he's gotten himself a very decent car for the money in my opinion, and I hope that with everything we've done over the years he's now got something that will happily trundle around between fuel stops (
) causing no bother.Gary is pretty much set on a Mercedes as a replacement. He'd actually spotted a really, really nice W211 E500 (a later one with the 5.5 engine) but unfortunately it had sold before the Bentley could change hands. A W219 CLS is still an option as well.
I really need to get on and do a thread for pa's Landy 
First off, welcome
Second off - let us delve into this.
The central locking. There may be a reset button in the fusebox (underneath the glove compartment, if it's the same as the earlier cars). If not, then I'm not sure. Would be worth asking here, and if parts are required then the usual suspects - IntroCar and Flying Spares. I would suspect, given that the drivers window is a problem, that you have a wiring fault in the drivers door. Possibly behind the door card. Good luck and Godspeed. *salute*
The heater fans - are the behind-the-dash flaps moving around when you select different modes on the heating/air-con?
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