Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: toller on 10 April 2007, 20:25:20
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There's me thinking everything was going to be sorted ready for my MOT retest tomorrow. Got myself a new coolant temp sensor but to get the old one off i had to remove the coolant bridge.
When putting it all back on this evening i have managed to shear one of the big bolts holding the brisge in place, the hollow ones with the 4 holes along it's length, i actually thought i'd stripped the thread in the engine block at first so it was a relief to find out it had only snapped.
By the looks of it the metal around one of the four holes in the bolt must have already been cracked as it's already corroded rather than being bright metal as you'd expect from a fresh break.
What i want to know is do these bolts have a torque vaule applied to them, and if so what is it?
Hopefully i'll be able to make a new bolt at work in the morning as the scrappy where i got the sensor from is a fair distance away, depends on if i can find the correct size bolt to start with :)
Bit of a bummer as i'd hoped to have everything back up and running today. I do hope i can get my retest re-scheduled though, don't fancy spening another £50 :(
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30NM, see 'Coolant bridge to cylinder head' in Marks DTM guide:
http://www.omegaowners.com/forum/YaBB.pl?num=1156365122/
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Sometimes banjo type bolts do shear on reuse, esp if they where tight to remove...
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They were quite tight to remove, from the looks of the corrosion it lokos like the one that broke had already previously cracked anyway. Just my rotten luck I suppose :)
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They were quite tight to remove, from the looks of the corrosion it lokos like the one that broke had already previously cracked anyway. Just my rotten luck I suppose :)
Yes, I think they get damaged undoing them. It happens to all of us :(
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Are the remaining bolts out of the heads...
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i know the feeling, i did the exact same thing on TheBoys first project car!
I got it out by putting a small socket extension across the sheared nut and rotating... came out surprisingly easily.
I sourced a replacement bolt from a scrappy, can't remember the values we torqued them too, not very much!
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can't remember the values we torqued them too, not very much!
Thats because I didn't let you do it again ;D
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can't remember the values we torqued them too, not very much!
Thats because I didn't let you do it again ;D
:-[
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Well I was hoping to make some new ones but having just checked them they're a silly sized thread. Looks like i'll have to make a return trip to the breakers :(
Worst thing is i put the bolts to one side at the scrappy's thinking i wouldn't need them. Bugger!!!
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My tip with removing aprts from a donor car is.......keep every bolt, nut, bracket etc you remove.....every one, they often come in very handy...
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My tip with removing aprts from a donor car is.......keep every bolt, nut, bracket etc you remove.....every one, they often come in very handy...
Top advice :y
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My tip with removing aprts from a donor car is.......keep every bolt, nut, bracket etc you remove.....every one, they often come in very handy...
Top advice :y
This is my instinct as well, but some of us have both limited storage space and wives... ;D
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My tip with removing aprts from a donor car is.......keep every bolt, nut, bracket etc you remove.....every one, they often come in very handy...
Top advice :y
This is my instinct as well, but some of us have both limited storage space and wives... ;D
You limited to just the one wife then? Trade her in for girlfriend II - much more flexible!! ;D
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If the bolts are prone to getting damaged during removal I'd buy a new pair rather than get them from a scrapper and risk another one break. Can't believe they'd be that expensive from VX?
(but ready to be proved wrong!)
Kevin
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If the bolts are prone to getting damaged during removal I'd buy a new pair rather than get them from a scrapper and risk another one break. Can't believe they'd be that expensive from VX?
(but ready to be proved wrong!)
Kevin
When I went to get some:
"I'm sorry sir, but you can only buy as part of coolant bridge"
"But, look, this is the part number on your EPC", pointing to his screen
"No, you need a new coolant bridge"
"Goodbye"
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They are actually somthing i can make from scratch, I was hoping they'd be a metric thread and that was i could have got a bolt the same size, drilled out the cntre then put the 4 holes along it's length.
The only thread gauge i could get to fit was a 5/8 NPT (not many bolts in that size :) ) so i'd have had to make the entire bolt from scratch and as i only have about an hour before the boss gets into work on a morning i didn't have time so the breakers yard seems an easier option.
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...... and as i only have about an hour before the boss gets into work on a morning i didn't have time ......
Where's your dedication? :-? ;D You could always stop behind for a couple of hours when the boss has gone home!! ;D :y
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...... and as i only have about an hour before the boss gets into work on a morning i didn't have time ......
Where's your dedication? :-? ;D You could always stop behind for a couple of hours when the boss has gone home!! ;D :y
No chance, at the first hint of sunshine that bloody building heats up faster than you wouldn't belive, I was workig in 49 degree heat last summer. Nasty :o