rude
Part of things
Posts: 537
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I had stern words with it this morning... "Crispian", I said, " if you break down on me, your going... AND I MEAN IT THIS TIME!" It didn't break down. Very rarely do I address it by its first name because it's a ridiculous name, so it knows I meant business!
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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fad
Posted a lot
Posts: 1,781
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Actually giggled at that.
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May 15, 2017 12:21:16 GMT
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I take mine to the scrapyard occasionally on parts gathering missions..... this way they get to see what happens to cars that don't behave. The A6 has jealousy issues where the A8 is concerned.
Nick
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1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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May 15, 2017 16:19:27 GMT
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hi, i have an e34 with an m20 engine (2 litre thirsty slug-moving roadblock!)
when did you last change your autobox oil?
your engine sounds like it is doing a lot of what mine was doing.
nearly alway unpredictable but mostly non responsive, either running too rich or too weak.
idling funny etc...
changing the oil in the autobox did a lot for getting some throttle response. playing with the air flow meter(cannot remember the vaguely close to standard settings-x amount of turns out-ill find out)
simply changing the rotar arm, distributor cap and doing the gearbox oil, did more for my engine than playing with the ICV, TPS, AFM and CPS.
once the autobox oil and ignition was sorted the rest was all(is!)fine tuning to be honest.
i still feel like my timing is out somehow but it sounds a lot like yours is too.
i mean , i did the cambelt on mine in the same week that i got it so was constantly thinking that id jumped or dropped a tooth on the cam sprocket but it mostly turned out to be sparks and auto changes.
I'm guessing youve had a good look at the metal fuel lines at the front of your tank? a lot of these leak but youd only know it once youve filled your tank up...
i know that revs come before autobox but much of the effect of what i went through(even bought another e34 when id nearly given up on this one)was due to the autobox not cooperating : /
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rude
Part of things
Posts: 537
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It makes sense, the auto box was rebuilt some time ago and although the fluid is nice and clean I did suspect some months ago that it was a bit... Clunky sometimes, some gear changes can be quite abrupt and some quite close together when there is no need. It's one of those ' I have the stuff to do it but will get around to it someday' on the list type jobs. It's played up before when the earth clamp was loose on the battery, not the boxes fault but it gave me an insight to what a confused, not running right autobox feels like! I've been hoping that the gremlin got worse and it has after completely disappeared for a while. This morning the engine wouldn't idle at all for the most part and when it did it was at 400rpm, selecting a gear just killed it. Once fully warm it's pretty much normal although after a drive I get an 'in park' rpm of 550 which is too low. On occasion, it will sit at 850 - 900rpm and I think this is where it should be. It's definitely temperature related but even then its sporadic in its symptoms. It is just like the problem is 'moving about' which could suggest that it's something that 'moves about' causing the problem. That gives some weight to your gearbox theory and experience. It's a long shot but credible and definitely worth a go.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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May 16, 2017 17:11:24 GMT
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if youre talking about temperature...heres a weird one!
idont know if it applies to e24s but with e34s there is a temperature sensor in the cabin that has a knock on effect in the ecu regarding general engine temps measured from the engine itself lol!
nice design-cant remember where i read about it, could well have been andrew everetts bmw 5 and 6 series restoration techniques..
how are your engine mounts? have you heard about them moving so much that the fan can touch the radiator-which in turn stops the fan from moving lol! haha! that might mess with both your revs and temperature
this book does talk about late 1987 635s needing an ecu remap..
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rude
Part of things
Posts: 537
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May 16, 2017 19:13:26 GMT
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Yes, there is a cabin sensor and mine has always been busted where someone has removed the panel and poked it with a screwdriver and after a medium ar$ed search I can't find one to replace it however, I would have said that this car ran fine when I first got it but finding things like the air bypass screw wound tight in suggests otherwise. Not heard of the engine mount thing but I know mine are alright because the engine doesn't move and I've had a bar in there at some point. The most recent catastrophic failure I discovered that these suffer from is the sub frame cracking on the steering box mount which doesn't surprise me as there are some considerable forces involved in the steering of these things. I started it tonight and it idled at 500, put it in drive or reverse and it's down to 400 and ready to konk. I was forced to go mess with the air bypass screw just to satisfy my curiosity. No change but by then the engine was starting to warm up then it idled at 650 to 700 and down to 550 in gear, foot on the brake. It drove faultlessly, smooth and pulled up and sat at 600 in gear. Interestingly I managed a record breaking 33.6 MPG quite effortlessly which I couldn't hit before, even if I tried. The AFM has got to go, I keep saying it and I'll get around to it, but I'd like to strip it again and reset it all first for one last attempt at life. The budget for this car is on rations this month to £100 and that's been spent on the genuine header tank and associated bits and because my other BM (E36318) needs urgent help. That Andrew Everett thing sounds interesting, not heard of that? I'll have to see if I can get a hold of one.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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May 16, 2017 20:41:23 GMT
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i think there are bits of that book that you can read online.
i was going to ask which end of cambridgeshire youre in as I'm in norfolk between thetford and downham market.
I'm guessing too that youve don't the ICV check with an ohm meter?
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rude
Part of things
Posts: 537
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Yeah, checked the original w.germany one and it was fine, replaced it anyway but it may be worth checking the replacement coz, you know, new parts and that. It was fine this morning until about 10 slow minutes into the journey and pulling away from the lights hanging a right, the power steering was dead... I've been expecting this to happen for the last 2 years at least but once some revs got through it, it was normal again. I've been changing the fluid in the reservoir every weekend as it's a sealed system and I don't want to be cracking off pipes that have been tight for 31years. Doing this cured the hard binding brake problem in heavy traffic. Pump has always been a suspect though.
I think it's time to pull it off the road and rebuild stuff whilst it still works and shift my attention to repairing my newly acquired work hack. I had a thought though, I don't think I've ever replaced the battery in this car and it's very old, well, at least 6 years old and after experiencing the symptoms of a loose battery terminal and how it affected different systems including the auto box, I should change it. It was getting lazy during the winter starts, I'm pretty sure that this winter will kill it off. How cool would that be if it cured every issue on the car? Lol! Never going to happen but one can dream...
Oh, I'm by the city centre of Cambridge, land of pink men's trousers and bicycles with baskets on ( both types, one you put stuff in the other is controlling the thing )
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Last Edit: May 17, 2017 7:55:34 GMT by rude
1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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May 17, 2017 16:54:28 GMT
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id just check that your battery is charging properly and leave it at that. i mean, i know dodgy terminals and earths can have weird knock on effects but if your battery is getting 14 volts of charge to it i wouldnt worry too much.
i was going to say if you were in the north of cambs i couldve lend you the book. i don't envy you living in cycle city lol
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rude
Part of things
Posts: 537
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May 17, 2017 20:41:30 GMT
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Cheers, if I get a chance I'll look at getting a copy, any printed facts and figures on this car is always a bonus to have. A lot of the time, well, most of the time any symptoms that are googled refer me to US sites where the 635 is quite popular and I find a thousand suggestions to an issue but never a post saying... IT'S FIXED! I don't think there are many 635's without an issue or two, these cars are constantly 'broken with style'. In saying that, it's quite uncanny how many problems actually fix themselves on these cars. You just need to tough it out for a while. It's like the W.Germans invented an actual living, breathing machine as an experiment using stolen secrets from Hitlers WW2 area 52 equivalent. Does make you think why Haynes never issued a manual for it, they probably dismantled the car and came back the next day to find it had reassembled itself but was misfiring every third Wednesday whenever there was a new moon. Spooky!
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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rude
Part of things
Posts: 537
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WOW. Bank holiday traffic and uber hot temperatures near on killed the 635's braking system. Nearly 5 hours to do a 2 hour journey, 4 burning cars, 3 crashes... wtf? The 635 managed to battle through most of it but fell at the last hurdle as it took an hour to do a mile before I could get on the motorway and cool sh!t down. The brakes went hard, then binded up and by the time I broke free from the chaos it was too stuck to get fluids moving and air through the cooler, and that's with new fluid. It was a balanced operation of driving until the smell of burning brakes and then hard shouldering it to let the heat dissipate. After a few miles we were back on the road. The discs are wasted by being bent now. It's ok braking under 60mph when they're cool, but anything over or with hot discs and you'll get air in your blood through the vibrations. Shame, but it was on the cards.
Engine gremlin wise, I got the opportunity on Monday to rip out the injectors and service them and change the fuel rail as the one on the car has the mount for the now obsolete pressure regulator. The replacement rail uses the more common regulator set up. I also took the chance to reinstate the cold start valve and connect it all back up. As someone stated above, changing the regulator changed the game. It runs like I have changed the whole engine... totally different. It's quieter, smoother and very stable, even the injectors have shut up all their clanking and are ticking away quite happily. However, and there is always something, it is still idling low but it is stable when selecting drive now. 600rpm is about the speed. Leaving it to tick over for a while sees the engine speed increase to 900rpm eventually. It started this morning on the key but the revs fluctuated a bit (600 - 800) and then stabilised at 600 and it has been stable over 50 miles of use. On the road it feels as though it's holding back, it takes off lovely and is eerily smooth but I thought at one point that the brakes were binding but they're not. Time to change the AFM...
So, in summary, a result but not a result.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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May 30, 2017 21:32:40 GMT
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Reading about your brakes reminded me of my 88 E32 735 as it did exactly the same thing in traffic ( locking on and not releasing when applied a lot in traffic ) and then would release when cooled down, when I tried to trace what was causing this I could not find any faults in the braking system ( I kept thinking that it was either the brake booster or the brake hoses ). The fault was finally revealed to be the brake master cylinder as one day I went to move the car and it had absolutely no brakes thanks to the seals in the master cylinder giving up ( which I still have not fixed ) and it was possible locking the brakes due to the seals swelling when used a lot, so it may pay you to keep an eye on your master cylinder.
Karl.
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71 ford mustang being restored 71 triumph spitfire 3.5 v8 88 bmw e32 735 --SOLD--
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rude
Part of things
Posts: 537
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That sounds about right for this car, I can actually imagine getting in it tomorrow and there being no brakes. All or nothing these things! I'm trying to make it last out a couple of weeks or so and then it can come off the road for some surgery.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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rude
Part of things
Posts: 537
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Well, the autobahn annihilator finally kicked the bucket Wednesday afternoon and yesterday it was well sick. You know I said I changed the regulator? Well the replacement died after 30 odd miles and yesterday I used the car on a 100 mile round trip covering 70 of those miles with the 1973 fuel pump controlling the fuel flow... so you can imagine how that went. Kangaroo juice? The car has beaten me... for now, and 1 week before it was due to come out of service it has given up. What a total slacker.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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fad
Posted a lot
Posts: 1,781
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It knew, that's why.
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rude
Part of things
Posts: 537
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You'd never believe it would you? However, I still need the car and despite chucking a tonne of cash at my other two cars this month on much needed bits I learnt on Sunday that I can't use my Discovery this week because the wife needs it... every day. Come on man! Well, that mean't I needed to go put the old fuel rail and regulator back on and hope for the best. It runs and drives with it on, it was getting lumpy and stalling and I couldn't get the revs up at idle. Previously changing this changed that but after I swapped it back the car idled bang on... until it got warm and then it shot up to about 1050rpm and now it seems to want to stay there. For some reason I decided to unplug the ICV, the revs dropped to how they were before I even started all this low idle caper, plugging it back in saw them eventually rise back up to just over a grand, but I haven't looked into it enough to even see what's happening there! It drives fine though so it'll have to do as I have 0 time this week to spend on it because I'll be rolling around under the green E36 in the rain bolting many things to it.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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fad
Posted a lot
Posts: 1,781
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Have you taken it out for an Italian tune up?
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how does your car run if you unplug all the sensors? have it tried it before? should only run slightly richer than its suppose to
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rude
Part of things
Posts: 537
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No I haven't, I could mess about with the position of the throttle switches and get the revs down at idle but with the FPR on the way out I'll still be fighting a lost cause. It works well enough to get me about for the rest of the week until the green car is done but in saying that, this weather is shocking and I don't fancy rolling about in the wet much. Whatever I touched when I swapped the fuel rail/ reg over has made my MPG needle gauge work as it should. Unless that is a coincidence as well! It worked when it felt like it for about a year and then packed up altogether recently. Now it's alive again. What did I touch? Position sensor plug, speed sensor plug, all injector plugs, afm plug, tps plug... hmmm, it's a strange one. The car used to hit 36mpg on the obc, then it struggled to hit 32 recently, swapping the FPR for the now dead one saw it just about reach 24mpg and now with the old one back on it all I can get is 28... all on the same run! But I'll give it some slack as it's not well.
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1986 Haunted BMW E24 635CSi 1999 Povo spec BMW E36 1.8i Touring Work Hack 2001 Petrol annihilating Discovery V8 2000 Jaguar S Type 3.0 V6 ~NEW~
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