Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: 05omegav6 on 23 April 2013, 13:00:39

Title: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 13:00:39
Having watched the excellent OOF dvd 8) the time has come to fit the new cambelt...

Only one item of concern, the new belt has a couple of barcodes, but no other marks.

How do I align it on the crank pulley :-\
Title: Re: Cambelt fitting
Post by: henryd on 23 April 2013, 13:03:45
If the locking kit is in place it doesn't matter about the marks on the belt:y
Title: Re: Cambelt fitting
Post by: Andy B on 23 April 2013, 13:04:34
....

How do I align it on the crank pulley :-\

What henry says!  ;)  ;)  ;)
Title: Re: Cambelt fitting
Post by: JesperKjeldsen on 23 April 2013, 13:07:05
look up a bit and see what henry wrote..  :y
Title: Re: Cambelt fitting
Post by: JesperKjeldsen on 23 April 2013, 13:09:54
https://www.dropbox.com/s/4eekzcri38u0vuc/E-Tech%20Reparaturleitfaden%20Omega%20B%2094-99.pdf

sorry its not in english.

please let me know if the link works, trying to get the entire repair manual up.
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 13:10:13
Cheers lads :y

So basically:

Fit the belt
Adjust idlers
Tension
Rotate crank a couple of times
Check timing adjusting where necessary
Re tension
Rotate crank twice
Recheck

 :y
Title: Re: Cambelt fitting
Post by: JesperKjeldsen on 23 April 2013, 13:12:00
nemlig det er lige sådan man skal gøre det..

or just. yeps that how to do it  :D
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 13:16:08
 :y

Here goes...
Title: Re: Cambelt fitting
Post by: Lizzie_Zoom on 23 April 2013, 14:06:57
All the best Al! :y :y :y

I have still got mine to do after promising myself to do it for months now.  Pushing my luck I know, but I am awaiting some cash to come through to afford it. ::) ::) ;)
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 14:24:37
Hit a snag

Timing marks were 180° out, managed to turn the crank 3/4 of a turn but it keeps slipping back when I try to move the ratchet back to turn it further. Engine is also very tight :-\
Title: Re: Cambelt fitting
Post by: JesperKjeldsen on 23 April 2013, 14:27:01
its the compretion you can feel. turn the crank til you cant turn it no more and hold it there for a bit, it should help a bit
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 14:33:01
its the compretion you can feel. turn the crank til you cant turn it no more and hold it there for a bit, it should help a bit
:y shall give that a try
Title: Re: Cambelt fitting
Post by: Elite Pete on 23 April 2013, 14:38:33
Don't force anything, you could bend valves.
Title: Re: Cambelt fitting
Post by: Elite Pete on 23 April 2013, 14:39:10
Hit a snag

Timing marks were 180° out, managed to turn the crank 3/4 of a turn but it keeps slipping back when I try to move the ratchet back to turn it further. Engine is also very tight :-\

How did you manage that?
Title: Re: Cambelt fitting
Post by: jonny2112 on 23 April 2013, 14:44:43
Should you not be rotating the crank until the timing on the cams nearly line up, before fitting the lock?
Sounds like the crank has been locked too early maybe?
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 14:47:21
Wasn't me ::)
Last change was at Guffers two years ago :-\ it was an absolute pig to time/tension iirc

Pm incoming Pete :y
Title: Re: Cambelt fitting
Post by: Kevin Wood on 23 April 2013, 15:08:18
Yep, DO NOT turn the crank if the drive to the cams is disconnected. It will be pistons hitting valves rather than compression that is your problem.

Turn the crank back by about 60 degrees from the TDC marking with the belt off. You should then have all of the pistons well down in the bores so it is then safe to turn each of the cams to the correct position for belt fitting and lock them using the kit.

Having locked the cams, rotate the crank forward by 60 degrees to the TDC position, lock it and fit the belt.

I find on the 3.2/2.6 without the adjusting lower idler, that if you rotate the crank about 1 tooth back before fitting the belt in an anticlockwise direction (i.e. over cams 4 and 3 first, then rotate the crank back to TDC before fitting the sprung tensioner, there is less likelihood that it ends up a tooth out.

You can always transpose the belt markings from the old belt to the new using some tip-ex. While not essential it does help.
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 15:13:56
Massive thank you to EP :y for reminding me to take the car out of gear :-[

Cams 3 and 4 were slightly advanced, but now spot on :y
Title: Re: Cambelt fitting
Post by: Kevin Wood on 23 April 2013, 15:16:35
Massive thank you to EP :y for reminding me to take the car out of gear :-[

Cams 3 and 4 were slightly advanced, but now spot on :y

Always a winner. :y

You sure you are up to this driver involvement lark? ;D
Title: Re: Cambelt fitting
Post by: Kevin Wood on 23 April 2013, 15:17:47
Cams 3 and 4 were slightly advanced, but now spot on :y

Is this the one that's always had that misfire, out of interest?
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 15:18:35
No adjustment on the lower idler :-\

No marks on the old belt either ::)

You can see where today is heading ;D

In answer to your next question... yup ::)
Title: Re: Cambelt fitting
Post by: 05omegav6 on 23 April 2013, 20:19:30
Finally sorted ::)

Mahoosive thank you to

Elite Pete for the phone support

Kevin for the technical support

Robsey for sorting the whole sorry mess when I screwed it up ::)
Title: Re: Cambelt fitting
Post by: Elite Pete on 24 April 2013, 07:08:44
Finally sorted ::)

Mahoosive thank you to

Elite Pete for the phone support

Kevin for the technical support

Robsey for sorting the whole sorry mess when I screwed it up ::)

The main thing is you got it sorted :y