Omega Owners Forum - Engine noise, terminal? Pt2

TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: Engine noise, terminal? Pt2 Reply #30 - 05. Apr 2010 at 20:11 Tunnie turned up with a couple of senny leads, replaced no3 which looks tired, no change. Then he nicked some bulbs to get his through mot
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cem Omega King Offline Posts: 13920 Ankara/Turkey Gender: Drives: 97 2.5 V6 Manual CD- Clio Sport	Re: Engine noise, terminal? Pt2 Reply #31 - 05. Apr 2010 at 20:30 if that car stays longer there will be ~~no second car~~ nothing to worry about ~~left~~
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tunnie

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Re: Engine noise, terminal? Pt2
Reply #32 - 05. Apr 2010 at 20:34

TheBoy wrote on 05. Apr 2010 at 20:11:

Tunnie turned up with a couple of senny leads, replaced no3 which looks tired, no change.

Then he nicked some bulbs to get ~~his~~ mother tunnies estate through mot Shocked

You won't be needing them, its not going any ware Roll Eyes

Well not until i reach pot 6 on that DIS, reckon if i take off 3 again and put 6 on first, we won't have to take plenum off.

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Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine

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TheBoy

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Re: Engine noise, terminal? Pt2
Reply #33 - 05. Apr 2010 at 20:39

tunnie wrote on 05. Apr 2010 at 20:34:

TheBoy wrote on 05. Apr 2010 at 20:11:

Tunnie turned up with a couple of senny leads, replaced no3 which looks tired, no change.

Then he nicked some bulbs to get ~~his~~ mother tunnies estate through mot Shocked

You won't be needing them, its not going any ware Roll Eyes

Well not until i reach pot 6 on that DIS, reckon if i take off 3 again and put 6 on first, we won't have to take plenum off.

In my heart of hearts, I dont expect it to be ht related any more. But gotta go through the motions.

My back is giving me some jip this evening after bending over it to get dis in and out Cry

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tunnie

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Re: Engine noise, terminal? Pt2
Reply #34 - 05. Apr 2010 at 20:52

TheBoy wrote on 05. Apr 2010 at 20:39:

tunnie wrote on 05. Apr 2010 at 20:34:

TheBoy wrote on 05. Apr 2010 at 20:11:

Tunnie turned up with a couple of senny leads, replaced no3 which looks tired, no change.

Then he nicked some bulbs to get ~~his~~ mother tunnies estate through mot Shocked

You won't be needing them, its not going any ware Roll Eyes

Well not until i reach pot 6 on that DIS, reckon if i take off 3 again and put 6 on first, we won't have to take plenum off.

In my heart of hearts, I dont expect it to be ht related any more. But gotta go through the motions.

My back is giving me some jip this evening after bending over it to get dis in and out Cry

Get yourself a 2.2, doddle to reach that coil pack

Prob be around 10 ish in the morning? - Still want to go to the scrappy even if pot 6 lead still has it running like bag spanners?

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Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine

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Kevin Wood

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Re: Engine noise, terminal? Pt2
Reply #35 - 05. Apr 2010 at 22:41

TheBoy wrote on 05. Apr 2010 at 20:39:

In my heart of hearts, I dont expect it to be ht related any more. But gotta go through the motions.

My back is giving me some jip this evening after bending over it to get dis in and out Cry

Have you got a timing light you can put on no.6? Just to verify there's a spark? (although if no.3 is firing you may well get a flash of the strobe anyway) Undecided

If you turn it over with the crank sensor disconnected does it crank evenly? Just wondering.. If it's got a pot without compression you'll hear it turn through 5 compression strokes and then miss a beat.

Kevin

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Lazydocker

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Re: Engine noise, terminal? Pt2
Reply #36 - 05. Apr 2010 at 22:46

Kevin Wood wrote on 05. Apr 2010 at 22:41:

TheBoy wrote on 05. Apr 2010 at 20:39:

In my heart of hearts, I dont expect it to be ht related any more. But gotta go through the motions.

My back is giving me some jip this evening after bending over it to get dis in and out Cry

Have you got a timing light you can put on no.6? Just to verify there's a spark? (although if no.3 is firing you may well get a flash of the strobe anyway) Undecided

If you turn it over with the crank sensor disconnected does it crank evenly? Just wondering.. If it's got a pot without compression you'll hear it turn through 5 compression strokes and then miss a beat.

Kevin

Admittedly everything was connected but sounded like it cranked fine on Sunday... Just rattled and clacked like an oil burner when running, on 5 we thought and now confirmed Thumbs Up!

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Whatever it is... I didn't do it

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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: Engine noise, terminal? Pt2 Reply #37 - 05. Apr 2010 at 22:50 Marks DTM Calib wrote on 05. Apr 2010 at 19:43: When you collect the silver nugget, you can borrow my spark tester...and compression tester
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Kevin Wood

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Re: Engine noise, terminal? Pt2
Reply #38 - 05. Apr 2010 at 22:53

Only other thing I can think of that's easily checked is the injector on that cylinder? Is it connected, firing when it should or (more likely) leaking / gushing fuel when it should be closed?

Getting a strange feeling of deja vu now. Roll Eyes

I have a lovely home made injector circuit checker (junior timer socket with an LED on the end) if you like? Fabricated about a month ago as it happens. Roll Eyes

Kevin

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mrjimbo Senior Member Offline Posts: 545 Oxfordshire Gender: Drives: 3.0 Omega facelift estate	Re: Engine noise, terminal? Pt2 Reply #39 - 06. Apr 2010 at 05:37 Snapped inlet cam on no6 ? that would make that sort of noise and it would also cause the loss of vacum to the brake servo as the inlet valves would have got jiggy with the piston.
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TheBoy

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Re: Engine noise, terminal? Pt2
Reply #40 - 06. Apr 2010 at 09:14

Kevin Wood wrote on 05. Apr 2010 at 22:53:

Only other thing I can think of that's easily checked is the injector on that cylinder? Is it connected, firing when it should or (more likely) leaking / gushing fuel when it should be closed?

Getting a strange feeling of deja vu now. Roll Eyes

I have a lovely home made injector circuit checker (junior timer socket with an LED on the end) if you like? Fabricated about a month ago as it happens. Roll Eyes

Kevin

I had thought that - I had checked that the injectors are wired to the connector that comes out of relevent hole in the injector wiring tray, but not checked further.

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Kevin Wood

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Re: Engine noise, terminal? Pt2
Reply #41 - 06. Apr 2010 at 09:46

TheBoy wrote on 06. Apr 2010 at 09:14:

I had thought that - I had checked that the injectors are wired to the connector that comes out of relevent hole in the injector wiring tray, but not checked further.

If you take the plenum off, remove the fuel pump relay and bridge the contacts with a short length of wire with a spade connector on each end you can get the fuel pump to run, and by looking down the intakes you should be able to spot a leaky injector.

Then turn on the ignition and check that no injectors have opened (due to a failed driver in the ECU perhaps?).

Then stop the fuel pump, leaving the relay out, relieve fuel rail pressure and crank it over checking that you get a pulse at each injector socket. (this is where my LED comes in. It's a short pulse so it needs to be an LED with appropriate series resistor rather than a bulb.) Red wire with blue stripe on an injector connector is positive.

Kevin

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cem

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Re: Engine noise, terminal? Pt2
Reply #42 - 06. Apr 2010 at 09:54

Kevin Wood wrote on 06. Apr 2010 at 09:46:

TheBoy wrote on 06. Apr 2010 at 09:14:

I had thought that - I had checked that the injectors are wired to the connector that comes out of relevent hole in the injector wiring tray, but not checked further.

If you take the plenum off, remove the fuel pump relay and bridge the contacts with a short length of wire with a spade connector on each end you can get the fuel pump to run, and by looking down the intakes you should be able to spot a leaky injector.

Then turn on the ignition and check that no injectors have opened (due to a failed driver in the ECU perhaps?).

Then stop the fuel pump, leaving the relay out, relieve fuel rail pressure and crank it over checking that you get a pulse at each injector socket. (this is where my LED comes in. It's a short pulse so it needs to be an LED with appropriate series resistor rather than a bulb.) Red wire with blue stripe on an injector connector is positive.

Kevin

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Marks DTM Calib

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Re: Engine noise, terminal? Pt2
Reply #43 - 06. Apr 2010 at 13:20

Kevin Wood wrote on 06. Apr 2010 at 09:46:

TheBoy wrote on 06. Apr 2010 at 09:14:

I had thought that - I had checked that the injectors are wired to the connector that comes out of relevent hole in the injector wiring tray, but not checked further.

If you take the plenum off, remove the fuel pump relay and bridge the contacts with a short length of wire with a spade connector on each end you can get the fuel pump to run, and by looking down the intakes you should be able to spot a leaky injector.

Then turn on the ignition and check that no injectors have opened (due to a failed driver in the ECU perhaps?).

Then stop the fuel pump, leaving the relay out, relieve fuel rail pressure and crank it over checking that you get a pulse at each injector socket. (this is where my LED comes in. It's a short pulse so it needs to be an LED with appropriate series resistor rather than a bulb.) Red wire with blue stripe on an injector connector is positive.

Kevin

Or pop the lid off the relay and press the contacts together.

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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: Engine noise, terminal? Pt2 Reply #44 - 07. Apr 2010 at 19:52 Hmmm, I see there are a few threads currently about 2.5 v6 misfires Hope the others aren't as bad as mine
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