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1

Omega General Help / Re: Quick lesson in clutch bleeding please

« on: 24 October 2010, 13:05:20 »

AS above whats the best way to bleed the clutch after a change cheers Charlie :-/

Hi, Get an assistant - a. to keep the clutch reservoir topped up b. to pump the clutch pedal when told (unless you have an automatic bleeder!)
Take top off your reservoir
Ensure it is full
Find the clutch slave cylinder and attach a piece of clear flexible pipe to the bleed nipple, with the other end into a glass/clear container
Slacken the bleed nipple and get your assistant to operate the clutch pedal pushing it fully down to the floor and letting it slowly come back up. Making sure the reservoir is full of new clutch fluid. Do this a couple of times, watching that no more air bubbles come out, and then while the pedal is fully down on the floor lock the bleed nipple off. By now you should of expelled all the old fluid and any air in the system.
Top up the reservoir again and put the cap back on
Jobs a good un

2

Omega General Help / Re: Crank sensor Made in Italy ?? any good

« on: 18 November 2010, 16:27:25 »

Hi All
Re previous post.
It was not my intention to appear disparaging about anything made in Italy, but merely that this was the only identifying feature on the sensor, and not branded Bosch or Siemens as expected.Roger

Italy - you were lucky - everything I buy these days seems to be made in China - Italians have been making top quality electricals for years!

3

Omega General Help / Re: best battery

« on: 11 November 2010, 22:33:05 »

On the subject of batteries,would it be ok to put a 100ah battery in a 1.8 diesal focus?

As long as it is, at least the right ampage, and will physically fit and 12 volts then you can fit as big as you want....

The rule is to try and match your battery to the output of your alternator ie 70 amp battery to a 70 amp output alternator

4

Omega General Help / Re: no heat in car

« on: 24 October 2010, 10:17:32 »

Has anyone come up with a successful radweld removal chemical that could be flushed through the matrix?

:-?I once managed to unclog a radiator on an Astra diesel  that was really bad (the bottom hose hole was virtually blocked solid with gunk) - using Central Heating system descaler - used a strong mix and left it to soak for almost a week but it shifted it and the amount of rubbish that flushed out at the end was incredible. Got the descaler from Screwfix. Could be worth a try with the matrix in position followed by a good flush after.
 

5

Omega General Help / Re: no heat in car

« on: 24 October 2010, 10:03:15 »

if both pipes are hot would that not suggest matrix is flowing or am I being daft.

Unless the hot water is only getting through the top part of the matrix and leaving via the exit hose -  with the main body of the matrix being clogged. Can access be gained to the bottom of the matrix to feel if it is hot down there?

6

Omega General Help / Re: Anti freeze

« on: 25 October 2010, 17:48:25 »

Cheers Guys - Thanks for that

7

Omega General Help / Anti freeze

« on: 25 October 2010, 16:31:28 »

Hi, Thinking of draining my 2.0 Omega estate and replacing it with new antifreeze mixture Thinking of using Vauxhall antifreeze via the trade club Is it a concentrate and any idea how much I will need to get good protection.  Doesn't give much detail in the Book

8

Omega General Help / Re: Tyre question.

« on: 24 October 2010, 22:32:22 »

215 55 16 will fit..  if the tyres are a set and thread depth is ok no reason not to use them..

for example as a general use winter tires must have a smaller width than the original .. most tire shops advice this..how can it break insurance.. thats not logical..

Apreciate what your saying and no doubt they will fit - the point I was trying to make about invalidating your insurance is that if you were unfortunate enough to have an accident regardless of the cause they would send an assessor to examine the vehicle and if he found 'non standard' tyres or tyres of a size other than Vauxhall recomend, they would class this as a modification and would refuse to pay out - they will look for any excuse to avoid paying out, as someone has already pointed out re 'badging' the car. There have been a couple of instances recently where someone has bought a set of aftermarket alloys and tyres, with a different size tyre/rating, that have been advertised as suitable for that type of car, but not recommended by the manafacturer - and insurance companies have refused to pay out when claims have been made. This is classed as a modification and you must inform your insurance. 
The simple thing to do if in doubt is to contact your insurance company and ask them - they may agree but you can guarentee your premium will go through the ceiling!  

9

Omega General Help / Re: Tyre question.

« on: 24 October 2010, 10:23:05 »

My mate has offered me a cracking se of tyres for spares but they are 215/55/16,i have the cdx alloys with 225/55/16 on them.Are they any use to me?

It may be worth having a word with a good tyre fitter to see if they could be used - but I would doubt it. You are best sticking to the original recommended sizes - fit anthing else and you will probably invalidate your insurance.

10

Omega General Help / Re: glow plug diagnosis

« on: 24 October 2010, 11:03:28 »

Hi  I'm in the process of writing a "how to" guide on 2.2dti glow plugs diagnosis. It is very much WIP at present and waiting for photos etc to be taken. ( I'm currently changing my central heating boiler and believe me the completion of this task must take priority)Could be useful to you, if you have not already fixed it, despite your additional 2 pots. PM me if you would like a  MS Word version of it.

i hope you are gas safe registered

If it's the same as Corgi was,you don't need to be .....  as long as you're not doing the job 'for financial gain' 

And don't make any connections to the gas supply

11

Omega General Help / Re: glow plug diagnosis

« on: 24 October 2010, 09:55:39 »

.... I thought they had to be disconnected and checked individually as you described but was thrown by the earlier post regarding the fuse and thought I was missing something. Cheers

A bit like I said on the very first reply?     

  I knew you were right all along - never doubted it!!!!

12

Omega General Help / Re: glow plug diagnosis

« on: 23 October 2010, 22:09:53 »

You can test them with a multimeter set to lowest resistance. Ignition switched OFF.
Remove the wire from the top of the plug and put one lead from the meter on the top of the plug the threaded part where the wire came off and the other lead from the meter on the body of the plug or any good earth/0v.
A good plug will read about 1.3 Ohm. No reading or a much higher reading means fubar.
Although it possibly can be done. I would not like to try this with the manifold in situ. Too fiddly.

Thanks for that - I have'nt worked on an Omega diesel but presume its a similar set up to other cars and that all the plugs are connected with the common busbar that carries the supply to the plugs. I thought they had to be disconnected and checked individually as you described but was thrown by the earlier post regarding the fuse and thought I was missing something. Cheers

13

Omega General Help / Re: glow plug diagnosis

« on: 23 October 2010, 20:22:49 »

you can pull the plug in the fuse box and test them, good ones will read 0 - 5 Ohms, fails will be open circuit, you can change them without taking the manifold off , it's fiddly, I had to use a nail bar to get my manifold off , then it's easy.

 :-? Sorry mate not sure how that works  - do you mean remove the fuse that protects the glowplugs -and then they can be checked in situ individually without removing them

14

Omega General Help / Re: glow plug diagnosis

« on: 22 October 2010, 20:03:16 »

The simplest way to test your glow plugs is to take them out and connect each one across a good 12 volt battery, they should glow white hot within a few seconds. You usually find one is not performing and this will affect your starting especially on a cold morning. No need to replace the working ones!

A lot easier with a multi-meter on ohms ...... you won't burn your fingers either. 

What reading should you get for a healthy glowplug?

15

Omega General Help / Re: glow plug diagnosis

« on: 21 October 2010, 21:49:49 »

The simplest way to test your glow plugs is to take them out and connect each one across a good 12 volt battery, they should glow white hot within a few seconds. You usually find one is not performing and this will affect your starting especially on a cold morning. No need to replace the working ones!