Hi Rick/Alan Indeed, I concur with what you say, and over the years it has always been standard practice to bleed the lifters before installing, normally by submersing them in a container of oil and pumping them in and out until they firmed up and became solid, then drop them into the motor. But these could not be pumped by hand, and they were the same length out of the box as the old lifters,by Flyboy - Technical Forum
Hi Rick, in your dollars we would be talking; R615 = $90, R5 500 = $808, no idea how that would compare with what you would pay for a cam over there, but I guess we pay more. There is a spray bar that runs above the cam with little holes that spray oil onto the lobes, from age, a couple of the holes clogged up with carbon, so, it would be a good Idea to pull the spray bar off every 100 000 or soby Flyboy - Technical Forum
Herewith a few pics as promised.by Flyboy - Technical Forum
Hi Rick, no I don't believe the cam is OEM, although who knows, the cam might be made by some outside company for and behalf of BMW, like a lot of the parts are, the motor manufactures have just become assembly plants. It may be the same crowd that make the cams for BMW, just not in the BMW box, or not? The cam cost me R615 versus the agents price of ...........................wait for it..by Flyboy - Technical Forum
Hi All, a few answers to some good questions; Al, you are right in saying the return is clear, from where the flexible hose connects to the metal pipe from the regulator anyway. If the plugs were pulled and the motor spun, I doubt the fuel would come "gushing" out, but I do believe it will be able to be seen as physical liquid droplets being sprayed out, and just for giggles I willby Flyboy - Technical Forum
I agree with you, a blockage in the return would result in a rich condition, due to the fact that even though the fuel introduced into the motor is controlled by the ECU and has nothing to do with fuel pressure, you could compare it to opening a tap (faucet for you guys) half way while blocking the end of the hose pipe with your thumb, open the pipe for a second and close it again, X amount of wby Flyboy - Technical Forum
Hi Al, I do understand, and agree with you, I am already thinking so far out the box, I am already starting to suspect the left rear wheel bearing. Unfortunately, getting home at eight every night from lectures has not given me any time to work on it this week, and I have to give lectures this Saturday and Sunday as well, so the first chance I will get is on Monday afternoon after work. Then Iby Flyboy - Technical Forum
Hi Al, the cam timing did haunt me, albeit only briefly, I have checked and double checked, I even tore back into it after I had put the whole shebang back together again, basically, it is not a complicated procedure, there is a little hole in the side of the engine block, in front of the flywheel, one is then required to rotate the engine until you are at TDC (No1 firing and insert an 8mm pin thby Flyboy - Technical Forum
Thanks for the relpys guys, (damn, a poet and he don't even know it) right now, I have no idea what it could be, could be anything I guess. I will pull the return line and see how much is making it back to the tank, I know the return is not blocked, because I did pull it off and blow down it, and I could hear it bubbling in the tank, so if there is no return, it would have to be the regulaby Flyboy - Technical Forum
Hi Ferdi, I must agree, Alan was indeed right, like you, after reading the article and having a better understanding of how the system operates I am not so sure it is the regulator either, in fact it would seem that even a failed regulator would not cause such flooding issues, as the amount of fuel introduced into the cylinder is purely a function of the injectors, controlled by the ECU. Quoteby Flyboy - Technical Forum
Hi All In the quest for knowledge and the desperation to get my car running, I have been trying to find information specific to the fuel injection system and not so much on the BMW as such. Then I came across this little gem, that explains the workings of the system in detail, but in plain English. Now there is no doubt as to what sensors give signals to what, how the fueling and timing is worby Flyboy - Technical Forum
QuoteRick Some times the good stuff just keeps coming Sheeeesh, don't you just know it, if I never had bad luck, I would have no luck at all. Like I always say, "If you had to cut a woman in half, I would get the half that talks"by Flyboy - Technical Forum
I had the same problem with my blinkers, turned out to be the flasher unit, it has to be the one with the seperate earth wire, I just put a normal generic in and then the problems started, changed it out for the electronic one with the earth wire and never had a problem since.by Flyboy - Technical Forum
OK just tried to fire her up this morning after standing over night, back to the same flooding issues and no start After cranking for about a minute, the air is saturated with the strong smell of fuel, I turn the car off to go investigate. Turns out the number four injector is soaking wet on the outside and the fuel has literally puddled up around it, on the intake manifold. So it looks likeby Flyboy - Technical Forum
Hi Rick/Peter Yes, at least with it running, one has something to work with, I understand how you would suspect valve timing Rick, it does feel like that, the thought has crossed my mind as well, but I have checked more than once, and it looks good, on these belts the teeth are far enough apart, even one tooth out would be far enough to be blatantly obvious, if all else fails I will have to tearby Flyboy - Technical Forum
Hi Ferdi Nice to see you pop into to give your input to my problems, yes, I understand the fuel pressure regulator to work as you described. No my car has no O2 sensor, I know that, niether does it have a catalytic converter, I know, I have had the exhaust off a few times before. Of course now I am still at loss as to what is casing the rich condition, and at $80, I can not really afford to thby Flyboy - Technical Forum
Alan, our cars over here, well at least the ones of that vintage don't have O2 sensors, mine has never had one, the socket where the O2 sensor relay lives, next to the fuel pump relay has been sitting empty from day one. I did remove the vacum hose to see what diffirence there would be, it kept running, the only reason I knew it was off, was I heard the tell tale hiss of a vacum leak, pluby Flyboy - Technical Forum
It runs, but not well :-( Ok, I managed to get it to run and keep running, even took it for a test drive around the neighbourhood. I spent the day at work going over everything, pouring through the manual trying to make sense of it all, I was sort of leaning towards fuel pressure problems because of the flooding, I would consider a bunch of other things, but my mind would keep returning to theby Flyboy - Technical Forum
Ok just spent the last 5 hours studying 80 photos of the cam job, and everything seems fine, I can not find anything that was not as it was before I started.by Flyboy - Technical Forum
Many thanks for your help guys, I really do appreciate it, honestly I do, I would be lost without the generosity of the good folk like you all. I promised a little tutorial on the job for what it is worth, for someone who may want to change a cam belt in the future and be intimidated by the job, but mostly to try and give a little back to this great little corner of the world wide web, for all iby Flyboy - Technical Forum
I hear you, and the only things I can think of are the temp sender, as I have heard about how they are a cause of great grief when it comes to fuel delivery, or the pressure regulator, strange thing is that it was running sweetly when I drove it home on Friday afternoon, it always starts first kick. I parked it, and then after working on it on Saturday..........nada. The little vacum pipe on theby Flyboy - Technical Forum
Hi Dave I will be watching this one with interest, my heater does exactly the same, if I turn it all the way up, it heats the car up like nobody's business, but just turn it about a quarter back and it is ice cold again, either one or the other, very no progession. Mine has the aircon so the heater box and valve are situated low down almost on the floor od the transmision tunnel, so as Petby Flyboy - Technical Forum
Hi Guys, its 3am here, and I am in front of PC, can't sleep, this is driving me insane, I even have a killer headache, Lord knows how I am going to make it through this day. Ok, update, I have rechecked everyhting, nothing seems out of place. I tried a little experiment, I got the better half to crank, while I was in the back with the seat and access cover out, so I could get to the tankby Flyboy - Technical Forum
Hi Rick/Alan, yes there is a regulator, well a fuel pressure regulator, the little canister looking thing with the vacum hose attached to the intake manifold, checked the connections, they are good and secure. Al, that is the problem, the pump does not switch off, as long as you keep cranking, the pump keeps running, I know because I got the other half to crank the motor while I was in the bacby Flyboy - Technical Forum
Hi Peter, thanks for the input, I am at my wits end, I can't take it anymore, if it ain't one thing, it's another, spark is good and does not quit, I put a plug into each plug wire in turn and cranked the motor over and the spark was strong and consistent, also, if I look at the wiring diagram for the fuel pump, the fuel pump relay is connected and activated through the main relay,by Flyboy - Technical Forum
Here is the update guys. Fitted brand new fuel pump relay, all working fine now, when cranking over, pump runs and supplies fuel. That is the problem, it is supplying too much fuel, the reason the car won't start is that it is flooding. I went all the way back to basics and pulled each plug to check for spark, all have good strong spark. But I noticed that if I cranked the engine over anby Flyboy - Technical Forum
Peter, I checked, seems there is no power to the pump, even with the relay bridged (in effect, putting the pump hot onto the battery). Looking at the diagram, it seems simple enough, battery -> relay -> fuse 11 -> pump. So I will take the multi meter to it and start stabbing wires from the battery down stream until I get to the pump and try and find the break. Yes the fuel pump relayby Flyboy - Technical Forum
So with further investigation it seems as if there is no power getting to the pump, pulled the back seat and the access panel, checked the connections, all good. I then put the multi meter across the connections, while cranking, and no voltage reading, so I then went one step further and removed the relay and bridged bus 87 and 30, in effect hot wiring the pump straight to the battery, still noby Flyboy - Technical Forum
Hi Al, maybe, but I never removed or even unplugged it, in fact all I did was clean off the sensor with a cloth while the pulleys were off and it was easy to get to. I does run in the run position after you release the key from start, but ony for a few seconds then it is as if it is starved of fuel, and dies.by Flyboy - Technical Forum
That is right Al, I jumped the pins and heard it whizzing away, so I thought, ok, seems to work fine, I let it run (the pump) for a good 10 secs or so, then removed the wire and put the relay back in. went to start the car and it fired right up, ran for about 5 secs then died, then it didn't want to know. So I pulled the relay again and jumped the two pins, but this time the pump would notby Flyboy - Technical Forum