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Messages - Michael Bond

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1
Omega General Help / Re: Advice buying new Air Mass Sensor
« on: 04 January 2025, 18:48:29 »
Ok, thanks. I will test the loom. I am a bit surprised it failed as I have read that the Bosch ones are very reliable. It has done 321,000 however. Not tried to clean it and the air filter is very clean.

2
Omega General Help / Advice buying new Air Mass Sensor
« on: 04 January 2025, 15:05:55 »
It would appear that the Air Mass Sensor has suddenly failed on my 1995 2.5 V6 Omega Saloon. A diagnostic reading by the AA identified a fault with this sensor after the engine repeatedly stalled and drove with varying amounts of power and with the engine management light on after being left overnight in the cold. The AA disconnected the Mass Air Flow sensor and we were able to drive home with it in default mode.

I am able to replace the sensor myself but would like advice as to which to buy. The existing part is a Bosch 0 280 217 503 (OEM 90 510 156). After an extensive search, it would appear that the Bosch one is no longer available (out of stock wherever it is listed). I have been advised not to by a cheap third party one. Could someone please advise on the best make to go for. The prices seem to vary enormously from about £15 to over £400. I was thinking maybe Ridex?

I will take it out and examine it before fitting a new one but the instant and serious nature of the fault would suggest to me that it has failed rather than just got dirty.
Any advice welcome.

3
Omega General Help / Re: 1995 2.5 V6 Omega Clutch Query
« on: 29 October 2024, 18:05:03 »
Thank you Doctor Gollum for your reply. The hydraulics have definitely failed as when I pump the clutch pedal I get clutch/brake fluid dripping out of the gearbox. LUK do a kit with a release bearing and a kit with a slave cylinder for my car. From what you say I guess the one with the slave cylinder contains the release bearing as part of the slave cylinder.

4
Omega General Help / 1995 2.5 V6 Omega Clutch Query
« on: 29 October 2024, 16:37:43 »
The hydraulics have failed on my 1995 2.5 V6 Omega after 321,000 miles. None of the clutch has been replaced before so it is sensible to replace it all once the gearbox is off. I am not doing it myself as I am a bit old for such a job without a hydraulic lift etc. The garage can't obtain the parts from their usual suppliers and has ask me to obtain them. He recommends LUK, Sachs or Valeo. I am confused as the Omega parts breakdown and the Haynes manual for my both car indicate that there is clutch release bearing as well as a central clutch slave cylinder but my mechanic says he has never seen a car with both and all the clutch kits I have found for my car either have one or the other but not both. As my mechanic won't take it to bits until he has the replacement parts I am a bit stuck as to what to order. Has anyone done this job on a similar car and can clarify the situation for me please.

5
Omega General Help / Re: Coolant Hose Sourcing
« on: 22 December 2019, 09:17:49 »
Are you sure you have identified the correct part number? Have a look at the drawing here.

Might the problem hose be #10 9129576?

When I experienced a similar issue to you it was #2 on the drawing. This is the inlet pipe for the HBV that connects to a spigot at the rear of the engine in the well of the 'V'. It was split under the hose clip. That hose is 90466222 and Autovaux got it for me for £7.60+vat + delivery about 30 months ago.

Incidentally the leaking coolant nicely doused the coil pack, which gave up the ghost shortly after.

No, unfortunately not. My car does not have a HBV but instead the pipe goes directly from the spigot at the rear of the engine to the bulkhead connector using the hose I identified in the earlier diagram. It has failed at almost the same spot as yours though with a small hole in the pipe just back from the connection to the spigot. I have managed to remove the pipe with difficulty and it just seems a shame to spend considerably more effort replacing it with a repaired hose rather than a new one.

6
Omega General Help / Re: Coolant Hose Sourcing
« on: 21 December 2019, 17:07:46 »
Thank you all. I think I will probably go with Amba's suggestion if I don't find one in the next few days. It will at least allow me to fix it until one pops up on Ebay one day.

7
Omega General Help / Re: Coolant Hose Sourcing
« on: 21 December 2019, 16:45:17 »
Is it leaking along the pipe length or from the heater bulk head speed fit union ?

Reason I ask is I know the actual pipe has an internal diameter of 15mm.(..long story but a piece of copper pipe and 2 jubilee clips says it all..) so if its just the pipe you could cut and join it...just a thought ...failing that Im sure somebody will be breaking 1 if you ask admin to put up a "Wanted"

Yes, this is a good idea. I will do this if no success sourcing a new part. The leak is near the end without the connector so it should be possible so long as the old connector still functions without leaking after being removed and re-fitted.

8
Omega General Help / Re: Coolant Hose Sourcing
« on: 21 December 2019, 15:51:56 »
Yes, I have identified the part. It is hose number 3 on the diagram that davethebuilder posted. This equates to GM part number 9129564. Unfortunately no one seems to actually have it for sale. I have tried ebay, amazon and multiple searches on google. There is some obscure site in Russia that appears to be selling it but I can't understand a word of Russian and there is no English version. I just wondered if anyone knew another source of such parts that may not be obvious. Does anyone know of anyone breaking down an old Omega 2.5 V6 with such parts for sale?

9
Omega General Help / Coolant Hose Sourcing
« on: 21 December 2019, 14:07:53 »
I have a leaking coolant hose on my Omega 2.5V6 (1995). It is the heater supply hose that runs from the rear of the engine to the interior bulkhead. I have identified it as GM part number 9129564 but have been unable to find anywhere to source one from despite intense internet searches. Ideally I would like a new one but would settle for a sound used one. Can anyone offer any advice as to how I might get one?

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