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Started work on my coolant change today, using Markjay's excellent write up [smiley=thumbsup.gif]

Gave the bolts securing the undertray a good soaking in plus gas along with those that fix the radiator cover and went out to buy various bits like hose clips, drain bowl and some of Sainsbury's finest mineral water!

Got back home and removed undertray and radiator cover and located the rad drain tap. All OK so far.

Removed the expansion tank cap and then noted a series of cracks following the neck of the tank. Bu**er!

Pictures show what I mean: (first attempt at posting a pic so hope it works!)

General View:
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_full_top.jpg

Close up Front:
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_closer.jpg

Close up Rear:
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_rear.jpg

Full View of Tank (with cat in background!):
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_full_view.jpg

So, went to vaux (dealer only ½ mile up the road from me) to get a price. £39 for a tank with sensor and in stock! Why do that have that and not a brake light switch I wonder?

Anyway, I will be fitting a new tank as, whilst I am sure that this one will be OK for a while, I like to do things properly. Will be phoning Autovaux on Monday to fit out their price.

Still, I was going to take the bottle of and use a bottle brush to clean it up - at least I will have a nice shiny new one now I suppose!

looking good so far x25xe, keep up the good work [smiley=thumbsup.gif]

Cheers. I see that you are making good progress with Project A! ;)

Will post up more as work progresses.

i could have finished project A this weekend if i had'nt buggered the brakes! :-[

x25xe wrote on 05. Aug 2006 at 22:05:

Removed the expansion tank cap and then noted a series of cracks following the neck of the tank. Bu**er!

If i am looking at the correct thing.....i think they are mould marks......i got the same on my bottle....if you run a nail over them they stand proud a bit.....and nothing to worry about.

I carnt see anything else in the pics that look like cracks.

Cheers

Thanks for your input TD!

The cracks are around the filler neck on the bottle and the are certinally cracks. You can feel that they are cracks when running a nail across them.

I will be fitting a new bottle for peace of mind apart from anything else. Also, the old expansion tank is somewhat dirty so a new one will save having to clean it up and display my newly replaced coolant off to best effect!

i'll inspect my project car closer for this as well.....

Omega Owners Forum
https://oldsite.omegaowners.com/forum/YaBB.pl Chat >> General Discussion Area >> Coolant Change - Part 1 https://oldsite.omegaowners.com/forum/YaBB.pl?num=1154811901 Message started by x25xe on 05. Aug 2006 at 22:05