Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Owen on 06 July 2007, 16:31:34
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leAs in the pick, the hole has rounded, thought the bolt was a little easy coming off! The bolt itself is fine, its the hole! IT tightens to about finger tight then rounds :(
SO what can I do about this?
Will the other bolts compensate?
Am I fuked?
(http://i204.photobucket.com/albums/bb53/trooper30/cams.jpg)
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not on a corner really id get a new bearing cap tbh rather than risking it as its on the corner but i guess i would try it just keep an eye on it extremely close eye
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bearing cap :question
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basically they bolt down onto the camshaft bearing cap and should the bolt that holds the camcover down tightened to 8 nm with u can feel it its a little past surface touch
and the cam bearing cap tightened down to 8 nm aswell acording to my manual
hth spooks
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Mmmmm bearing cap! Well I cant do it that way, really, really need the car tommorow, anyone any ideas on a quick fix?
It there somthign in the bodgers handbook abour this??? ;D
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Oh dear i dont think you can use another cam cap as they are matched in production. The only option i can think of is to see if you can cut a slightly larger thead in the cap & get bolt to match or get it helicoiled but i don know if it is possible. Someone with more knowledge than me will advise :(
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Ive just been thinking, I recon someone maye have bodged this already!
It is the same corner where the oil leak was, when I took the injectors off there was a broken gasket (the orange ones) this had been bodged with filler, as there was loads of filler in the underside of the mount.
Also in this corner when I took the rocker off there was loads and loads of sealent, took a while to get off the cover.
And when I came to take the bolt out of the hole, it was surprisingly slack, so Im wondering if this bolt hole was knackered to start with? :-/ as it was so slack in the hole on taking it out
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you could be right :(
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So theres no quick fix to this then? Am I prety much screwed then?
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CAn you not drill out and repair the thread with a helicoil??
Not sure of the size of the bolts used but they look like this - not the exact one you need just an example:
http://cgi.ebay.co.uk/Helicoil-Type-Thread-Repair-Unified-UNC-10-24-TPI_W0QQitemZ190118319384QQihZ009QQcategoryZ30922QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
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dont give up yet, there are many people out there far more knowledgeable than me :y
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The ideal would be to helicoil the bearing cap (assuming its the thread tahts gone adn not simply the cover thats broken?).
As a short term job, get a thin rubber band with a bit of oil on it and insert it in the hole and then insert the bolt.......tighten to the 8Nm torque setting.....
If its the pastic damaged then use a washer with a bit of sealent around the base of it.
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the thread is m6 find a extra long m6 bolt and screw a nut onto it ,then screw the bolt into the hole as far down as it will go then tighten the nut whilst holding the bolt with another spanner.the holes in these things are deeper than the bolts screwed into them so you can usually pick up a couple of undamaged threads at the bottom of the holes.
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The ideal would be to helicoil the bearing cap (assuming its the thread tahts gone adn not simply the cover thats broken?).
As a short term job, get a thin rubber band with a bit of oil on it and insert it in the hole and then insert the bolt.......tighten to the 8Nm torque setting......
8Nm, I havent fot the tools to measure that acuratly, so would you say 8Nm is when it nips us, before a bit of muscle is used on the next turn of the ratched?
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the thread is m6 find a extra long m6 bolt and screw a nut onto it ,then screw the bolt into the hole as far down as it will go then tighten the nut whilst holding the bolt with another spanner.the holes in these things are deeper than the bolts screwed into them so you can usually pick up a couple of undamaged threads at the bottom of the holes.
Top tip - that'll come in handy on a few things I've overtightened before I discovered the delights of the Torque Wrench:y :y
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Well so far it Marks rubber band idea? have 2 little O rings as I got 10 and only needed 8, will this do?
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Oh, hold up, I recon I might have sussed it! ;)
See where the red arrow is, well the bolts that hold that thing on are the right size, and a few mil longer that the cam cover bolt, and has pulled up nicely. :)
The still in tact cam cover bolt is shorter, but no to shot, will still pull up well in the other things mounting.
And whilst I on about that thing me red arrow points to, what is it?
Also the pipe coming off it, the blue arrow, is realy slack where the connection to the block is, should it have play in it??
(http://i204.photobucket.com/albums/bb53/trooper30/bolts.jpg)
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Oh, hold up, I recon I might have sussed it! ;)
See where the red arrow is, well the bolts that hold that thing on are the right size, and a few mil longer that the cam cover bolt, and has pulled up nicely. :)
The still in tact cam cover bolt is shorter, but no to shot, will still pull up well in the other things mounting.
And whilst I on about that thing me red arrow points to, what is it?EGR
Also the pipe coming off it, the blue arrow, is realy slack where the connection to the block is, should it have play in it??Not Sure :-/
(http://i204.photobucket.com/albums/bb53/trooper30/bolts.jpg)
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ok, so your sorted? :)
the bit around the arrows is the egr.
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ok, so your sorted? :)
the bit around the arrows is the egr.
Yep it seems so, pulled down the bolts so they were just starting to get tight, then another quarter turn! Still wont know if its ok till I put it back together though/
EGR right gotcha! :y
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ok, so your sorted? :)
the bit around the arrows is the egr.
:y :y :y 8-)
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8nm is nothing... you really need to measure the torque on this job...
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ok, so your sorted? :)
the bit around the arrows is the egr.
Yep it seems so, pulled down the bolts so they were just starting to get tight, then another quarter turn! Still wont know if its ok till I put it back together though/
EGR right gotcha! :y
that may be too tight....
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8nm is nothing... you really need to measure the torque on this job...
If I had one I would mate, its best guess here! I just hope its tight enough cause I dont want to to having to take it all out again.
Just phones a few mates and no one I know has a torque. :(
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What is also important is not just that the torque is correct, but that it is the same on all bolt so that the cover press down on the gasket equally all around.
This job defo needs a torque wrench, but at the risk for being stoned by other forum members would say put the socket on a screwdriver-type handle with 1/4" drive (i.e. straight down, no 90degrees handles or ratchets), and then finger-tight it rotating the handle - this will make it easier to have all bolts tightened equally.