Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Jimmy Jerms on 15 October 2008, 18:38:31
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I intend to change the cam belt on my V6 and have purchased your DVD for help.
Because I regard the cam belt as a highly critical part I decided to pay through the nose and by one from Vauxhall (£140). :'(
On opening it I find it has no timing marks as demonstrated in the Haynes manual so how does one know that it is correctly installed :question
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Thats right, a lot of them don't come with markings :-/
if your old belt still has some markings, put the old and new belts side by side and mark the new belt against the old one
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The markings are there only as an initial installation guide, although aren't necessary as such.
When you rotate the engine, it's inportant that the cam sprocket's timing marks come in true. If they don't then it's a case of off with the belt an start again.
You may feel that perhaps it would be helpfull to mark one of the teeth so that you have a known constant reference from which to align against the crankshaft sproket.
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I intend to change the cam belt on my V6 and have purchased your DVD for help.
Because I regard the cam belt as a highly critical part I decided to pay through the nose and by one from Vauxhall (£140). :'(
On opening it I find it has no timing marks as demonstrated in the Haynes manual so how does one know that it is correctly installed :question
By use of a cam locking kit! ;)
There are various makes, mine's a Sykes Pickavant, not sure of the quality of this clicky (http://cgi.ebay.co.uk/Vauxhall-Cam-Locking-and-Bottom-Crank-Kit_W0QQitemZ110298954369QQcmdZViewItem?hash=item110298954369&_trkparms=72%3A1301%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14) :-/
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So they are non directional. Would have thought for a belt this was quite important?
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So they are non directional. Would have thought for a belt this was quite important?
As far as I'm aware, you only need to worry about direction if you're refitting an old belt.
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So they are non directional. Would have thought for a belt this was quite important?
Vauxhall deleted the marks about 3 years ago (why i don`t know)but as long as you have the locking tools etc its not that important as a general rule if the belt has no arrows on it the writing on the belt must be the right way i.e facing you so you can read it. :y
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Cant believe so many replies, so quickly.
I will have a go at lining up the old and new and transferring the markings.
Thanks to all :y
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Cant believe so many replies, so quickly.
I will have a go at lining up the old and new and transferring the markings.
Thanks to all :y
We're like buses on here, all turn up at once ;D
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I intend to change the cam belt on my V6 and have purchased your DVD for help.
Because I regard the cam belt as a highly critical part I decided to pay through the nose and by one from Vauxhall (£140). :'(
On opening it I find it has no timing marks as demonstrated in the Haynes manual so how does one know that it is correctly installed :question
By use of a cam locking kit! ;)
There are various makes, mine's a Sykes Pickavant, not sure of the quality of this clicky (http://cgi.ebay.co.uk/Vauxhall-Cam-Locking-and-Bottom-Crank-Kit_W0QQitemZ110298954369QQcmdZViewItem?hash=item110298954369&_trkparms=72%3A1301%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14)[/url] :-/
Mines an AST - good quality, no problems using on either of mine.
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Mines an AST - good quality, no problems using on either of mine.
:y Good! Another recommended make then! :y :y
I didn't intend to say they were iffy ... just that I'd not come across them ;)
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Andys right direction of belt only matters when its been reused , mind you would suggest you put it on reading belt details on top run so it goes clockwise..
PS Gates belts still have markings on or at least the ones i have bought (2) in last month or so have.. :y
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I did mine recently, bought the replacement from vauxhall and it had no markings, so I spent a happy hour counting teeth between markings on the old one and transferring the marks to the new one. I still didn't get it on correct to the markings BUT I was using a Sykes Pickavant timing tool and, at the end of the day, that was what I used to time it up. (and it ended up better timed than the vauxhall garage had done it last time!)
Good Luck, Pat
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Markings are just starting to reappear back on belts apparently
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I did mine recently, bought the replacement from vauxhall and it had no markings, so I spent a happy hour counting teeth between markings on the old one and transferring the marks to the new one. I still didn't get it on correct to the markings BUT I was using a Sykes Pickavant timing tool and, at the end of the day, that was what I used to time it up. (and it ended up better timed than the vauxhall garage had done it last time!)
Good Luck, Pat
easier buy Gates kits they have marks on belt save lots of time and you can be sure belt is on right position when setting idler and tens
bur is only my sugestion
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Andys right direction of belt only matters when its been reused , mind you would suggest you put it on reading belt details on top run so it goes clockwise..
PS Gates belts still have markings on or at least the ones i have bought (2) in last month or so have.. :y
Did 2 V6s in August - used Contitech kits - all markings + arrows present on belts (+GM part nº!!)
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Cant believe so many replies, so quickly.
I will have a go at lining up the old and new and transferring the markings.
Thanks to all :y
Please be aware that lining up the markings is NO substitute for using the cam timing kit. The belt markings make it easier to get the belt roughly right but you really need the timing kit to get the timing of bank 1 right against bank 2 and the crank timing. The V6 is different to many cambelt set ups where no adjustment exists: in that case it is just line the marks up and away you go
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I thought the point of the marks on the belt was that you could have the timing marks on the sprockets lined up properly and everything correctly locked in place but still fit the belt one or 2 teeth out. When I did mine I remember having to push and pull a bit to get the marks on the belt aligned with the marks on the sprockets and bottom pulley.
If the belt is not fitted with the right number of teeth between each pulley, surely no amount of tensioner adjustment can compensate- or doesn't it work like that?
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I thought the point of the marks on the belt was that you could have the timing marks on the sprockets lined up properly and everything correctly locked in place but still fit the belt one or 2 teeth out. When I did mine I remember having to push and pull a bit to get the marks on the belt aligned with the marks on the sprockets and bottom pulley.
If the belt is not fitted with the right number of teeth between each pulley, surely no amount of tensioner adjustment can compensate- or doesn't it work like that?
quite right - if you do not have the right number of teeth between pulleys then you will not be able to time it correctly. THe point I was trying to make is that even with the belt markings you still need the locking kit to get it spot on.