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Author Topic: standing start problems  (Read 1229 times)

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dippydave

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standing start problems
« on: 07 June 2007, 12:06:33 »

not just for our Olympians, but for my CDX!  In short, it's stood for months without being fired up and now won't. it sits on my lawn waiting for tinkering time (august) or to be thrown away (what the powers suggest).

Any bright ideas?

history: (fyi 2.5v6 '96)
stood for two weeks end of 2005, wouldn't start  - fuel pump fault diagnosed. £140 from a dealer? sod that i thought >:(
replacement from breakers sourced, with new seal from Vx, attempt at fitting early 2006. still wouldn't start.  :-/
pump removed, tested on bench, had stopped working. 5 pound wasted :)
builders moved in, no space on drive, car towed to grandparents drive.
left standing for 10 months - end of 2006. Doh!  :-?
annoyed family members pay for mobile mechanic to replace fuel pump and ........still not starting. £200 invested...
compression tests done, low readings, apparently might be stuck valves or something.  :-/

one method to get valves moving discovered - 'keep turning the bloody thing over until the oil gets back up there as they're hydraulic'. added new fuel, redex, sprayed 'damp start' etc for help with bang. still wouldn't start. :-[
slight progress of sounding like nearly there whenever damp start used.
plugs checked - all working but passenger side wells full of water and two plugs rusted to leads. new set of leads and plugs fitted early 2007.
extra damp start sprayed, lots of drama but no start. - plume of fire coming out of air intake, head intake blown off and in neighbours garden, air box lid off! :o

new elite bought.   :y cdx left to ponder.  :(

not really sure why looking back i let the beast stand for many many months but it's only done 65k, had lots of work done (like belt/pump/pads/leads/plugs) and is lovely black. i have some beautiful pics of when it moved! any chance again?
« Last Edit: 07 June 2007, 12:07:39 by dippydave »
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Marks DTM Calib

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Re: standing start problems
« Reply #1 on: 07 June 2007, 12:10:22 »

It sounds as simple as a failed crank sensor to me.....it explains all the symptoms.
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dippydave

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Re: standing start problems
« Reply #2 on: 07 June 2007, 12:14:35 »

oooh!  :) something new to try. thanks! time to research how tricky that job is!

not had any lights come on the dashboard though.  :-/
« Last Edit: 07 June 2007, 12:22:57 by dippydave »
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Vectra Elite Estate doing good post-Omega service but still not as nice to sit in.

One last Omega on the drive, one Corsa on the lawn...maybe they'll go to a good home before too long!

Kevin Wood

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Re: standing start problems
« Reply #3 on: 07 June 2007, 12:15:13 »

... and don't worry about the compression. It'll have very dry bores! Compression tests should be done when the engine has been run up to temperature.

Once it is running some fresh fluids and belts would probably be wise, of course.

Kevin
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dippydave

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Re: standing start problems
« Reply #4 on: 07 June 2007, 12:18:32 »

Quote
... and don't worry about the compression. It'll have very dry bores! Compression tests should be done when the engine has been run up to temperature.

Once it is running some fresh fluids and belts would probably be wise, of course.

Kevin

of course. although i am slightly reluctant to replace new stuff that hasn't really had to work, just sat for eighteen months! i presume you mean oil, coolant, brake and timing belt?!
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Vectra Elite Estate doing good post-Omega service but still not as nice to sit in.

One last Omega on the drive, one Corsa on the lawn...maybe they'll go to a good home before too long!

Kevin Wood

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Re: standing start problems
« Reply #5 on: 07 June 2007, 12:24:04 »

Quote
of course. although i am slightly reluctant to replace new stuff that hasn't really had to work, just sat for eighteen months! i presume you mean oil, coolant, brake and timing belt?!

Yep. You're probably right but I would at least inspect the timing belt and tensioners to ensure the belt is still in good nick and not perished and the tensioners run smoothly and haven't got dry bearings.

The braking system could probably do with some new fluid flushed through it (syphon out the stuff that's in the reservoir and replace with new first, then bleed some fresh fluid through) and a quick check that all the seals are fine.

Rubber parts on cars are odd. They seem to die much quicker if they're not in regular use.

Kevin

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TheBoy

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Re: standing start problems
« Reply #6 on: 07 June 2007, 12:24:15 »

I agree with M_DTM, check the crank sensor. Worth doing a paperclip test anyway as well.

Once running, it will need full fluid change - oil should be changed annually, regardless of mileage, and I guess coolant due, along with brake fluid etc...
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dippydave

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Re: standing start problems
« Reply #7 on: 07 June 2007, 12:34:49 »

Quote
I agree with M_DTM, check the crank sensor. Worth doing a paperclip test anyway as well.

Once running, it will need full fluid change - oil should be changed annually, regardless of mileage, and I guess coolant due, along with brake fluid etc...

paperclip test? again newbieness brings another unheard of inside trick! :-? i found a test on VxOn forum using a multimeter - is that close?

thanks for the responses guys.
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Vectra Elite Estate doing good post-Omega service but still not as nice to sit in.

One last Omega on the drive, one Corsa on the lawn...maybe they'll go to a good home before too long!

philayl

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Re: standing start problems
« Reply #8 on: 07 June 2007, 12:50:41 »

Quote
Quote
I agree with M_DTM, check the crank sensor. Worth doing a paperclip test anyway as well.

Once running, it will need full fluid change - oil should be changed annually, regardless of mileage, and I guess coolant due, along with brake fluid etc...

paperclip test? again newbieness brings another unheard of inside trick! :-? i found a test on VxOn forum using a multimeter - is that close?

thanks for the responses guys.
Try here http://www.omegaowners.com/forum/YaBB.pl?num=1152601768
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