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Author Topic: Oh no, what have I done .... ?  (Read 34612 times)

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jonny2112

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Re: Oh no, what have I done .... ?
« Reply #360 on: 21 November 2012, 11:24:06 »
Cheers Mark. In that case, the cams are all virtually lined up, but the crank pointer is NOT in line with the marker. It's about an inch or so short. If I bring it to the mark, the cams will all be forward of the timing case notches.
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Entwood

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Re: Oh no, what have I done .... ?
« Reply #361 on: 21 November 2012, 11:44:29 »
Quote from: jonny2112 on 21 November 2012, 11:24:06
Cheers Mark. In that case, the cams are all virtually lined up, but the crank pointer is NOT in line with the marker. It's about an inch or so short. If I bring it to the mark, the cams will all be forward of the timing case notches.

Timing sounds out across the board .. would explain the 'orrible noises IMHO . :(
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jonny2112

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Re: Oh no, what have I done .... ?
« Reply #362 on: 21 November 2012, 11:49:38 »
That's what I'm thinking. Am I right in thinking that they should all be lined up, cams AND crank? Surely they'd have to be  :-\
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Entwood

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Re: Oh no, what have I done .... ?
« Reply #363 on: 21 November 2012, 12:00:41 »
There's some pictures and discussion in this thread from the old site ... not perfect but might just help .. pictures are at post #9 and show the timing kit in use .. but the marks will give you an idea of what it should be like .. hopefully !

http://www.omegaowners.com/forum/YaBB.pl?num=1234975336

HTH
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jonny2112

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Re: Oh no, what have I done .... ?
« Reply #364 on: 21 November 2012, 12:13:24 »
Cheers for that  :y

I guess the timing is well off then. In order to correct it, I'll have to remove the belt. If I lock the crank with the tool (when I get the kit), can I just adjust the cams to line up their markings, then drop in the locks? Or will I need to remove the cams and replace them in the correct position?

Or am I totally barking up the wrong tree ........  :-X
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Marks DTM Calib

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Re: Oh no, what have I done .... ?
« Reply #365 on: 21 November 2012, 12:23:16 »
If it was me and dependent on how long it is untilt he lcoking kit arrives, I would wedge the cams with something soft, slacken the tensioner to give some slack in the belt and reset the crank timing. re-tension and give it a run to see if it makes any difference.
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jonny2112

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Re: Oh no, what have I done .... ?
« Reply #366 on: 21 November 2012, 12:26:04 »
Mmmm. So I could 'lock' the cams and loosen the belt sufficiently to turn the crank, rather than the other way round?
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Marks DTM Calib

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Re: Oh no, what have I done .... ?
« Reply #367 on: 21 November 2012, 12:28:30 »
Yes.

Do check the belt for missing tooths to and that foreign object
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albitz

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Re: Oh no, what have I done .... ?
« Reply #368 on: 21 November 2012, 12:34:09 »
Yep.Sounds like the foriegn object has gone down the inside of the belt between the belt and crank,allowing the belt to move round a couple of teeth on the crank.Your very lucky it wasnt enough to bend 24 valves imo. I would imagine you will also need to carefully inspect the belt in case the washer or whatever it was has either partially sliced it or damaged some teeth.
It does sound like youve at long last got to the cause though,which is very good news indeed.
Is the cambelt kit anywhere near the end of its life John ? Unless its pretty new it might be worth just changing the belt and rollers while you have the kit,and to save you worrying about damage to the belt.


Im a very slow typist. ;D
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jonny2112

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Re: Oh no, what have I done .... ?
« Reply #369 on: 21 November 2012, 12:57:30 »
Yes things might be looking up, but I don't want to get carried away ......  :-X

Belt would need changed tbh but not sure I can manage it just at the minute. Must check BuyPartsBy for prices.
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Marks DTM Calib

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Re: Oh no, what have I done .... ?
« Reply #370 on: 21 November 2012, 13:02:49 »
At this stage, it would be an idea to confirm this is the issue  :y
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Entwood

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Re: Oh no, what have I done .... ?
« Reply #371 on: 21 November 2012, 13:27:13 »
Quote from: Marks DTM Calib on 21 November 2012, 13:02:49
At this stage, it would be an idea to confirm this is the issue  :y

Must admit I agree with MDTM ... retime it using existing belt and adjusters ... and see if that solves the problem .. if it does then think about changing the belt etc .. if it DOESN'T .. then you have deeper problems and a rethink may be needed. We still don't know - FOR SURE - that the mistiming has not caused valve damage .... if its all nice and quiet after the timing is sorted ... all well and good IMHO ....
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jonny2112

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Re: Oh no, what have I done .... ?
« Reply #372 on: 21 November 2012, 13:50:22 »
You're right of course. Knew I was getting carried away  :D
We'll try that first  :y
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robson

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Re: Oh no, what have I done .... ?
« Reply #373 on: 21 November 2012, 15:01:42 »
As well as inspecting the belt teeth check the sprockets or whatever their called for bent,  broken teeth
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Kevin Wood

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Re: Oh no, what have I done .... ?
« Reply #374 on: 21 November 2012, 16:43:51 »
Yep, I'd be checking for obvious belt damage before a run to check engine appears in good order. If that shows it's survived, I'd have the belt off again for a very thorough inspection. Might even be worth putting a new one on as a matter of course, as it has chewed up a foreign object.

No need for a new belt for a quick test, though. :y

A compression check might be worthwhile if it then runs OK, just to confirm there are no bent valves.
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