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46

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 21 March 2010, 17:05:14 »

Yesterday when I was running it I read the codes and only had 46 which is the Secondary Air Pump which I know about as this was faulty before I did the work.

Just read them now and am amazed to find all of these

46   Secondary Air Pump Voltage Low
19   Incorrect RPM Signal
16   Knock Signal Circuit 1
57   Idle Air Control Voltage Low
21   Throttle Position Sensor (TPS) Voltage High
129   Exhaust Gas Recirculation (EGR) Valve Feedback Voltage Low
81   Injector Valve 1 Voltage Low
82   Injector Valve 2 Voltage Low
83   Injector Valve 3 Voltage Low
84   Injector Valve 4 Voltage Low
85   Injector Valve 5 Voltage Low
86   Injector Valve 6 Voltage Low

WTF have I done? Really p*ssed off now :-/ :-/

47

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 21 March 2010, 16:31:20 »

Compressions look fine....knock sensor off is not good.....

Header tank should pressurise as its a pressurised system

I meant rather quickly like it did before the work was done (thought this was a symptom)?

So what to do next? Do I assume its the heads or would the compression test point to something other than that? If so what?

What will be the consequences of the knock sensor being left off?

48

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 21 March 2010, 15:55:50 »

Right today I have removed the servo pipe from the plenum - no difference, so that eliminates brake fluid.

Did a compression test with the following results

1 - 13 Bar
2 - 13.5 Bar
3,4,5 & 6 - 14 bar

Not sure if that is significant or not. When putting it all back together I realised that I had not connected the knock sensor (I think thats right - its the one that sits on top of the front cable tray) so connected that back up. Took it for a drive round the block and noticed what looks like blue smoke when under load?

Other than that it is still exactly the same. No wet spark plugs or anything else untoward except that the header tank seems to be pressurising.

Please someone help as I am way past my level of knowledge here now!! :-/ :-/

49

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 20 March 2010, 19:14:46 »

Is that the side that had the failed head gasket?

The vacuum hose connects to that side of the inlet plenum so brake fluid is still a possibility.

Yes it is Andy.

I am going to pull the vacuum hose tomorrow and see what happens.

50

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 20 March 2010, 18:37:35 »

Ok have just run it for 10 minutes or so. Gets to temp fairly quickly (quicker than it used to but I always thought it took a long time anyway). Sits happily at an indicated 95 degrees but still billowing smoke out of the exhaust.

Guess the next step is to remove the servo hose and find something suitable to block up the hole and run it again (to eliminate brake fluid). Also I need to find the source of the air leak too (this has annoyed me slightly as I have used all new genuine seals in the inlet).

Just has me worried that it smoked like this before the work and is now doing it again

51

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 20 March 2010, 17:52:40 »

Seems to sound ok. Lifters were a bit noisy but they seem to have settled down a bit.

About 2 minutes after starting up the idle seems to increase to about 1500 rpm from 1000 rpm and if you "blip" the throttle it wants to cut out.

52

Omega General Help / Re: Headgasket - No change at all!! Now with Videos!

« on: 20 March 2010, 17:35:50 »

So let it run until up to temp and then see whats what?

53

Omega General Help / Re: Headgasket - No change at all!!

« on: 20 March 2010, 16:41:38 »

Hopefully these videos might help confirm the symptoms.

This first one was taken immediately after start up
[media]http://www.youtube.com/watch?v=FUmcbqp6J6Y[/media]

This second one was taken about 2 minutes after the first one
[media]http://www.youtube.com/watch?v=6517id5nj7g[/media]

What I find interesting is the smoke only comes out of 1 side of the exhaust :-/

In between the 2 videos I did a paperclip test and the only code was 46 which the car had before all this work so is not a major concern right now.

54

Omega General Help / Re: Headgasket - No change at all!!

« on: 20 March 2010, 15:52:43 »

Auto-box breather connected to plenum by mistake?

After a rebuild it is quite normal for oil and grease used during assembly to burn off or get burnt in the engine. It only takes a few drops of oil to create a smoke screen.

There is a chance that the advice that experienced OOFers gave you about the corrosion, from photographs, would have been different if they had been able to see the heads in the metal but the photographs I saw didn't have any corrosion damage in the critical areas.

HTH

Manual box so not that! Grease etc being burnt off as you say is normal but it is definitely not that.

I think I might go and take a video of the smoke to give a better idea

55

Omega General Help / Re: Headgasket - No change at all!!

« on: 20 March 2010, 11:01:24 »

I would be suspecting the cylinder head or heads themselves,did you have them skimmed or tested.

That was my first thought and if so I need to think about whether I can justify the expense or whether I should just break it and get another one?

Couldn't this just be a load of condensed coolant within the exhaust system from when it was last running with the fault,  evaporating off?

I would say that there was far too much smoke for it to be this

Removing and blocking the feed to the master cylinder and giving it a run will eliminate brake fluid

Assume I would have to block off both the end of the servo pipe and the resulting hole in the plenum so that the vacuum pipes still work?

Then on to the misfire. If the compressions are good no cylinder should be misfiring so plugs, leads, coil pack and, perhaps, fuel injectors come under scrutiny. Did all the leads go back on in the right places? Any excessively wet plugs after a few minutes running?

Any trouble codes from the ECU? All connections back where they should be following the rebuild?

I will need to double check all of this starting with compressions. I am fairly sure all the leads went back in the right place though

Is this the car that had the corroded heads?

Yes it is. What is your thinking?

56

Omega General Help / Headgasket - No change at all!! Now with Videos!

« on: 19 March 2010, 17:44:46 »

Finally finished the headgasket work on my car today and started her up only to find it has made absolutely no difference whatsoever.

For those that don't remember the original problems were clouds of white smoke and misfire. Compression test showed 15 bar on all cylinders with the exception of no. 6 which showed 19 bar. Took the heads off to find this

which pretty much confirmed head gasket was the problem.

I have replaced both head gaskets, stem oil seals etc and put everything back together after making sure everything was spotlessly clean and I still have clouds of white smoke and a misfire. I have only left it running 5 mins but the smoke started after about 2 or 3 mins and then just got worse.

Any suggestions? :-/ :-/

57

Omega General Help / Re: MOT and EML

« on: 29 March 2010, 12:07:44 »

Scottie, check to see if your secondary air injection relay is present in the engine ecu box.

And make sure the solenoid on the right side of the rad is ok and connected up.

I remember messing with the relays when i was first trying to sort out the SAI fault so I will double check that. The solenoid is a replacement that I got from Markey Mark a while back and I am sure that is connected up properly.

58

Omega General Help / Re: MOT and EML

« on: 29 March 2010, 08:13:15 »

Does that mean the exhaust has stopped smoking now?

Yes it just stopped on its own so i assume it must have been condensation??? It just seemed a lot of smoke for condensation. Will just have to see how it performs on the run to the testing station

59

Omega General Help / Re: MOT and EML

« on: 28 March 2010, 18:21:43 »

I don't believe so Scotty, the MOT should be purely on the real emmissions at the time of test, EML is merely a warning telltale. BTW, you would be well advised to give the car a bloody good run immediately prior to the Test to get rid of any crap lying in the exhaust & to heat the Cats sufficiently to give the best emmission readings. As long as you are driving in the general area of the test station & you have proof of your prebooked test, then should you be stopped by the Law, you are in the clear. Just tell them you are on your way there

Fully intend to as I want to make sure that the car runs ok and the smoking has definitely stopped. Also want to clear the rust off the brakes and make sure they are working properly

60

Omega General Help / Re: MOT and EML

« on: 28 March 2010, 18:15:17 »

Depends what's triggering the EML. If it's an emmisions related fault, then your emmisions could fail your car. 
Does your MOT station do repairs? Best finding one that doesn't, Garic is maybe a bit far for you.  :-/

Yes but the tester is a good friend of mine