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Messages - ajsphead

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106

Omega General Help / Re: Rusty cills

« on: 01 September 2017, 07:46:57 »

"And I don't consider the sills to be the worst problem: anyone with crusty sills should have a damn good look at the chassis rails above the the back of the front-subframe."

Well said and as far as I am concerned, go around the car with a pointy stick and a 30cm length of string around prescribed areas and find out where the holes are.

It's a safety thing, no more, no less and the back end of an Omega can look quite scary when you think about it.

I also wish people would understand that chemical rust treatments only treat the surface and have minimal penetration so are no good unless you have ground out everything that's brown. I only use them as a primer on old metal that's saveable and has been attacked with all sorts of grinding tools and other more specialist chemicals first. Even so, nothing available on the high st goes anywhere near the car. The surface then needs stabilising and not just spraying with stone chip and underseal.

It's a filthy time consuming job and depressing at times but worth it with the quality of the results when you get it right.

107

Omega General Help / Re: Rusty cills

« on: 31 August 2017, 20:31:12 »

Looking at the rust, I would ask myself if I had a rear seat passenger and was involved in a crash what would be the structural integrity of the lower seat belt mount. Certainly not what it's maker intended. Don't buy a cheapo welder, it's much harder to do a half decent, let alone tidy job.

Treat it like a proper classic, cut out and replace with new metal. Give yourself a month per side as I reckon you'll be doing everything up to and possibly beyond the midline of the inner arch.

I learned a long time ago, own a Omega, buy a welder. Welder will probably cost more than the Omega but has many more uses including repairing toilet seat hinges, curtain poles, garden furniture, broken workshop equipment etc.

Also, buy a year's subscription to Practical Classics magazine and use the skillshack tutorials to get advice and really get into the spirit of it.

I have nearly got to the end of welding the current Omega, front inner arches, rear inner arches, pin holes along both sills, sill ends and rear floorpan, so all normal stuff. Still have to drop the tank and do about 3ft of rear valence that's not there any more. Uneconomic if I had not done it myself and a perfectly mechanically sound Omega would be a washing machine by now.

108

Omega General Help / Re: Brake problem

« on: 29 August 2017, 07:36:30 »

Had exactly the same problem with a previous Omega. Checked in the same way, changed master cylinder, made no difference. Current Omega did the same thing, stripped and rebuilt front calipers on advice from my friendly mechanic and got the best Omega brake pedal I have ever had. Two years later and it's back to mush again, fluid change made no difference so am considering whether rebuilding the rear calipers might help too. Free movement on the slide pins seemed to be the issue.

109

Omega General Help / Re: another exhaust ?

« on: 04 August 2017, 07:40:30 »

Backbox on my Omega and Astra diesels showed Bosal as the OE supplier with both BOSAL, GM and the respective OE part number stamped into them.

110

Omega General Help / Re: Engine breather

« on: 31 July 2017, 15:21:39 »

Is the breather holed or cacked up. If the latter ask them to give it to you, clean it up yourself and save the money. If holed then ask why as it shouldn't be rubbing on anything.

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