Have done repairs, car won't start ....

[revert]

Hi All,

I had a broken timing chain guide, opened her up (540 1994) - timing chain covers and lower sump cover. Now fixed .....

Have put everything back together, set the camshafts with the timing blocks and locked in TDC, etc. Did everything I thought I was supposed to do, put all the bolts back in their places, no spares left afterwards .......

and the sucker sounds like it wants to start but just won't.

I have tested the following:
1. Ignition coils;
2. Crankshaft position sensor;
3. Main relay;
4. Engine coolant temp sensor;
5. Intake air temp sensor;
6. Throttle position sensor;
7. Air flow sensor;
8. Fuel Injectors; and
9. Idle speed control valve.

Don't have oxygen sensors.

When I just keep winding the starter she seems to build up momentum like she's going to start but then there'll be a little blast and all the zing is gone, back to just being turned over with the starter.

I'm pulling my hair out here. Any suggestions would be appreciated. I searched the forum but am bit lost for keywords other than "starting" "not starting", etc.

Regards
Richard

[Hallmark]

My wifes car wouldn't start yesterday. No codes, turned over fine, just wouldn't start. About a year ago my other E34 had a noisy fuel pump so I changed it out, but when I changed it I kept the old fuel pump since it was still working when I took it out. Sure enough...

When the key is in pos. 2 you should be able to hear the fuel pump in the trunk or right rear wheel well. A normal pump will make a quiet but obvious "buzz".

FWIW

[632 Regal]

I cant hear my pump at all. I would do a compression test on it and see whats up there, you could have the cams off a tooth or 2 which would cause this.

[Tiger]

Did you change the chain? I think you are off on timing.

[revert]

Yeah I'm thinking that I may have the cams off a tooth or two as Regal has suggested which would give me what Tiger is suggesting but I was reeeaaaallllyyy sure I had the cams set real tight with chains in position with the chain tensioner adjuster. etc.......
Anyways, I checked for a fuel pump and there was none but I never recall any buzz before. So I held my foot flat on the gas while turning the engine overand I get the usual smell of too much fuel so I'm pretty sure the fuel pump is ok.

Now I'm taking head covers off again and will test the timing again and report back....... For the life of me I don't know why I enjoy this ..... have been missing my V8 and now I just want it back...

[revert]

Will the compression test show that my timing is out ? .... Valves opening and closing at the wrong times will give me low compression ?

[Bill R.]

case it should be popping back out the intake manifold and in the exhaust..

Will the compression test show that my timing is out ? .... Valves opening and closing at the wrong times will give me low compression ?

[632 Regal]

eeesh...that could also bent the valves. Hopefully its just a couple teeth off and thats it.

Have you checked if your getting spark?

case it should be popping back out the intake manifold and in the exhaust..

[revert]

yep, spark and fuel, no knocking of valves on piston tops

[632 Regal]

sounds like a nasty case of checking the cam timing.