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[Marks DTM Calib]

WD40 is rubbish at penetrating....get some proper plus gas or Ambersil rust flash......

[TheBoy]

WD40 is rubbish at penetrating....get some proper plus gas or Ambersil rust flash......

Thanks for info

[Marks DTM Calib]

Tunnie, can you get a drill near it so you can get a hole in it and put an easy out in...........just cover everything well to stop the swarf getting over the belt etc.

[tunnie]

right well i got up early!  

Gone down to see if the nut would budge and no joy, the long nosed plyers are bending on me!

I had a good look at this black rear plate, it seams to be locked at the top and all around the edge, looking at it I can't see this affecting anything with the engine running. Up by the 2 main cogs that the belt wraps around the plate is secured, behind the cogs with some large torx screws.

Its right in the middle where this nut goes, away from any pulleys or the belt.

Mark, yes i can get to it with a drill. However its such a small nut, I would have to use the smallest drill bits I have. From my experience working with wood, I will snap the drill piece  

As far as I can tell the only thing that this missing nut will affect is the cam sensor, as the bottom of it "straddled" the bolt. I was afraid it might have been an earth but TB said its unlikely and would have been a rubbish one.

Does anyone know if that bolt underneath the cam sensor has anything to do its its operation?

[TheBoy]

Mark, yes i can get to it with a drill. However its such a small nut, I would have to use the smallest drill bits I have. From my experience working with wood, I will snap the drill piece  

I think Mark was thinking about putting small hole in, then using an extraction gadget. Never used one myself though...

Do you reckon you could get molegrips in the stud?

[tunnie]

Mark, yes i can get to it with a drill. However its such a small nut, I would have to use the smallest drill bits I have. From my experience working with wood, I will snap the drill piece  

I think Mark was thinking about putting small hole in, then using an extraction gadget. Never used one myself though...

Do you reckon you could get molegrips in the stud?

I was wondering that as i went down, unfortunately no. Only those thin long nosed ones will grab it, the normal "fat" plyers just slip off  

[TheBoy]

Mark, yes i can get to it with a drill. However its such a small nut, I would have to use the smallest drill bits I have. From my experience working with wood, I will snap the drill piece  

I think Mark was thinking about putting small hole in, then using an extraction gadget. Never used one myself though...

Do you reckon you could get molegrips in the stud?

I was wondering that as i went down, unfortunately no. Only those thin long nosed ones will grab it, the normal "fat" plyers just slip off  

Is that because you cannot grab enough of stud...

[Marks DTM Calib]

No point in going at the stud until you get some penetrating on it!

[nixoro]

Not sure if this is a good suggestion but would it be possible to get a small cole chisel in there, if not can you live with it only it would just mean removing the cable tray and cover as one piece.

On my dads black omega the centre bolt sheered on that but the cable tray and cover the bolt is corroded so it cannot seperate. This however is not a problem as the cable tray clips over the top edge of the rocker cover and the bottom piece is held in place by two other bolts so its all held tight in place.

Not Ideal but since he's been using the car its not been a problem.

Hope this helps

[tunnie]

No point in going at the stud until you get some penetrating on it!

Little nervous about using that stuff, takes it down to -40!!  

I am scared if i use that stuff i will freeze that back plate too. I fear its way past my skills to get that out....

[tunnie]

On my dads black omega the centre bolt sheered on that but the cable tray and cover the bolt is corroded so it cannot seperate. This however is not a problem as the cable tray clips over the top edge of the rocker cover and the bottom piece is held in place by two other bolts so its all held tight in place.

Cheers nixoro, so on your dads megga the same center bolt is missing too? Is it s 2.0 or 2.2 out of interest? - Seams to be the same problem I have, as you mentioned the top clips of the tray should hold it all together. Is there much movement in the cam cover with that centra bolt missing?? James mentioned that as long as the top clips where on it seamed fine.

[Marks DTM Calib]

It has a delivery tube.....wont do any harm to the back plate even if you get some on it.

[nixoro]

On my dads black omega the centre bolt sheered on that but the cable tray and cover the bolt is corroded so it cannot seperate. This however is not a problem as the cable tray clips over the top edge of the rocker cover and the bottom piece is held in place by two other bolts so its all held tight in place.

Cheers nixoro, so on your dads megga the same center bolt is missing too? Is it s 2.0 or 2.2 out of interest? - Seams to be the same problem I have, as you mentioned the top clips of the tray should hold it all together. Is there much movement in the cam cover with that centra bolt missing?? James mentioned that as long as the top clips where on it seamed fine.

Tunnie its another 2.0 like mine same sort of design I guess, the cover itself once clipped over the rocker cover and once the remaining bolts are fitted is pretty snug no movement when refitted. Had to remove the cover over the Holiday period as I did the rocker cover gasket on mine and my dads car. refitted without any major issues. You've just got to make sure the bottom edge of the cover goes in behind the crank pulley first each time.

Hope this makes sense

[tunnie]

On my dads black omega the centre bolt sheered on that but the cable tray and cover the bolt is corroded so it cannot seperate. This however is not a problem as the cable tray clips over the top edge of the rocker cover and the bottom piece is held in place by two other bolts so its all held tight in place.

Cheers nixoro, so on your dads megga the same center bolt is missing too? Is it s 2.0 or 2.2 out of interest? - Seams to be the same problem I have, as you mentioned the top clips of the tray should hold it all together. Is there much movement in the cam cover with that centra bolt missing?? James mentioned that as long as the top clips where on it seamed fine.

Tunnie its another 2.0 like mine same sort of design I guess, the cover itself once clipped over the rocker cover and once the remaining bolts are fitted is pretty snug no movement when refitted. Had to remove the cover over the Holiday period as I did the rocker cover gasket on mine and my dads car. refitted without any major issues. You've just got to make sure the bottom edge of the cover goes in behind the crank pulley first each time.

Hope this makes sense

Yep it does, it was a tad awkward getting it up clipped from there when Jaime came over.

I am thinking of leaving it, if its sheered off on your Dads 2.0 then i think i can get away with it. I would like to get it out and would be the best way, however i think some experts and expert tools are needed.

[nixoro]

As said Ideally I would like to eventually remove the sheered bolt, its a pain as it was only found initially when I came to do the cambelt before xmas.

Still main thing is the cover is snug.

Good Luck with the refit if you haven't done so already.