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jrafferty 
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Joined: 22-February-2005 Location: dublin/northside Status: Offline Points: 341 |
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 Topic: bmw 635csi help neededPosted: 17-April-2008 at 20:31 |
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Right heres the story..Had been driving the 635 for a week no bother.Parked it outdoors overnight raining(its been out in the rain beforeno problem).Went to start it next morning and it seemed to be down on a cylinder immediately put it down to condensation or dampness so left it there planning to look at it the next day. Next day went to start it and it seemed to be worse(down on 2 or more cylinders) then it progressed to turning over and making an attemp to start but not actually starting so i got straight at it off with the distributer cap and out with the damp start spray( cap was bone dry along with plugs and everything else i could think of) So out came the credit card and joe duffy`s ph number. New plugs,distributer cap,rotor arm,plug leads and feul pump..OUCH. Still no luck.i gave up and up to a mechanic friend of mine it went.. Since then its had new fuel tank,another fuel pump(incase first one wasnt giving enough pressure),all new fuel lines,assorted relays and fuses and a new fuel sender unit...OUCH,OUCH.still no luck Next step is new distributer unit and E.C.U.(i dont think its either. There is fuel and there is a spark at all the plugs. The mechanic is not a half arsed chap and is usually excellent with the older cars but we`re both stumped by this.. Before i bring myself to my knees and buy the distributer and ecu does anyone have any ideas or suggestions.. The mechanic has tried just about everything and there is no crankshaft sensor on my car.. Sorry for the long post but im desperate and have even thought about putting it on ebay no reserve. THANKS P.S its a 1980 bmw 635csi manual,original irish car Edited by jrafferty |
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bmw 323i tc baur(1985)bmw635csi man/lsd(1980)
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bmw1066
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GOOD OLD E23 Joined: 16-January-2005 Location: West Sussex Nr Brighton Status: Offline Points: 1095 |
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Posted: 17-April-2008 at 20:59 |
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Have you dun a compreshen check, Pluss check to see if there is a injection pulse at each cylinder? You can get the injecters cleaned witch is well worth doing.
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Mark 735 se 1982
RED BARON A E23 is for life not just for x-mas BMW e34 530 v8 Sport kit Spelling always Bad |
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Dergside
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Joined: 16-May-2004 Location: Mid West, Ireland Status: Offline Points: 4000 |
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Posted: 17-April-2008 at 23:31 |
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What about the coil? Has it been checked?
Edited by Dergside |
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Now: BMW 523i SE '00, 318i SE - e91 '07, 325i Coupe '93.
Prev: e46 328i SE Touring, 330Ci, 318Ci. e39 523i SE. e36 325i Coupe *2, 323i SE, 316iSE. e30 325iSE 2dr, 320i Conv, 320i 2dr, 316i. |
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m3Cecotto
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Joined: 29-September-2003 Location: Scotland Status: Offline Points: 791 |
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Posted: 18-April-2008 at 00:45 |
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Rick's No Start Shark page:-
http://my.att.net/p/s/community.dll?ep=87&subpageid=1109 33&ck= is always worth a look. Edited by m3Cecotto |
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nn_dd
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Joined: 07-October-2004 Location: Co Clare Status: Offline Points: 602 |
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Posted: 18-April-2008 at 07:25 |
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How's your air flow meter, if you have one ?
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E39 530d Touring
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beemerchris
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Joined: 08-December-2006 Location: Dublin city Status: Offline Points: 388 |
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Posted: 18-April-2008 at 09:10 |
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Hi there all of the above is worth checking, as a spark doesn't mean it's strong enough to fire up the car. Did you take out the plugs again to see if she gets flooded? The fuel pressure can be checked quiet easy by connecting a pressure tester in the fuel line at the pressure regulator in the engine bay. Are all the temp sensors working ok? Airflow meter and lastly idle control valve (also the car should start with a fully depressed trottle [careful you have to let go as soon as she fires to not race the cold engine]) and lastly whats the voltage on the battery and does the battery collapse under cranking? |
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Chris
3rock-Car-Electronics-Services Cars.: e34 540t 6sp e24 635csi |
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Curley
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Joined: 28-February-2006 Location: Allenwood, KIldare Status: Offline Points: 431 |
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Posted: 18-April-2008 at 13:37 |
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1980 635i, did you change the 10mm low pressure fuel line between the tank and the pump, if it's gone porous ( it might look great) it will draw in air with the fuel and give you poor pressure, mght also be the vaccum controlled fuel bar pressure regulator on the return line to the tank Lastly and somewhat unlikely check the expansion fuel tank built into the fuel pump cradle at the rear of the car, these can deteriorate internally and can give a partial blockage, I'd still bet it's a fueling issue. Best of luck Tom Edited by Curley |
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'90 e34 520i, '83 e28 525i, '81 e28 520i, '79 e24 635i, '75 2002tii, '73 2002 touring, '71 2002, '70 2000tilux,
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jrafferty
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Joined: 22-February-2005 Location: dublin/northside Status: Offline Points: 341 |
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Posted: 18-April-2008 at 20:11 |
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First..return fuel line etc.replaced(had that problem last year Ill take notes on the other stuff(pressure test/injector pulse,etc.) and check with the mechanic if he done them. @ CURLEY..I thought it was fuel also which is why i went for new tank/lines/pump/ and everything else fuel related and now im lost as to what it is. Ill keep posting as i go along.. On another note i bought myself a new toy a 1985 bmw 525i,left hand drive on german plates and it drives as good as new(for now). P.S thanks for all the replies and suggestions. |
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bmw 323i tc baur(1985)bmw635csi man/lsd(1980)
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kbannon
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E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508 |
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Posted: 18-April-2008 at 22:23 |
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Are you are going to VRT it John? If so, then do it soon because there would be no CO2 figure for it and therefore taxed at 36%
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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual |
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jrafferty
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Joined: 22-February-2005 Location: dublin/northside Status: Offline Points: 341 |
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Posted: 19-April-2008 at 16:21 |
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Luckily enough its an original irish car,demo car for bmw on the naas rd when it was new(nice reg too "635 AZJ"). On an update note i was talking to the mechanic and fuel pressure test was done(thats grand) and pulse at injectors fine. I think ecu and distributer unit are going to have to be got. P.S @kbannon,did you mean the german 525i? i bought that for an engine for my 325touring but it is in so good nick that i cant bring myself to break it so im going to drive it (on trade plates ) for a week or so and then ill either use it for the track or store it with the rest of `em. Edited by jrafferty |
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bmw 323i tc baur(1985)bmw635csi man/lsd(1980)
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Curley
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Joined: 28-February-2006 Location: Allenwood, KIldare Status: Offline Points: 431 |
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Posted: 19-April-2008 at 20:41 |
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It's a big conversion shoving the e28 m30 525i pony into the e30 so I'll be interested to see how that progresses. The 635i I purchased was also a non runner with a deffective auto box. My issue was fuel related with the 10mm hose gone porous along with a fuel pump that wasn't delivering enough pressure for the injectors, two replaced and its purring like a kitten, Now it just a matter of reparing the auto box, only got 1st N and reverse along with a broken kickdown cable. It may be related but I'm guessing its a blockage. Best of luck with it, Curley |
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'90 e34 520i, '83 e28 525i, '81 e28 520i, '79 e24 635i, '75 2002tii, '73 2002 touring, '71 2002, '70 2000tilux,
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jrafferty
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Joined: 22-February-2005 Location: dublin/northside Status: Offline Points: 341 |
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Posted: 20-April-2008 at 09:52 |
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@ curley,when i first bought mine it was a non runner also, it was the same problem as yours so thats sorted,every fuel line and component is brand new at this stage,the only thing left as far as fuel is concerned is that a bit of dirt may have got up to the injectors so the mechanic is going to clean the injectors when he gets a chance..though at this stage we`ve moved to thinking its an electrical fault. As for the m30 engine going into the e30touring,im going to scrap the touring(too many cars and not enough time too give all of them). LOL..ive just seen the amount of cars you have,looks like we have the same disease Edited by jrafferty |
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bmw 323i tc baur(1985)bmw635csi man/lsd(1980)
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bmw 635csi help needed
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)all fuel lines now replaced..coil working..temp sensors replaced..airflow meter good..battery good.
