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[SMD]

Not the sump plug, but one of the bolts that hold the pan.

I refitted the oil sump pan yesterday after it was weeping through the bolts. This time I left it overnight for the silicone to cure. I tried to torque the bolts but my wrench wouldn't click at the desired setting so they were slightly overtightened. In my quest for perfection, today I slackened off the bolts and re torqued them but ended up shearing one.   

I don't think its leaking (but I didn't check) shall I leave or or try to drill it out and replace the nut with the pan in situ?

[Andy B]

Not the sump plug, but one of the bolts that hold the pan.

I refitted the oil sump pan yesterday after it was weeping through the bolts. This time I left it overnight for the silicone to cure. I tried to torque the bolts but my wrench wouldn't click at the desired setting so they were slightly overtightened. In my quest for perfection, today I slackened off the bolts and re torqued them but ended up shearing one.   

I don't think its leaking (but I didn't check) shall I leave or or try to drill it out and replace the nut with the pan in situ?

I think you need to bin your torque wrench ........ 
If it was me, I'd leave it if it doesn't leak, but I wouldn't old my breath that it doesn't. If you've sheared the head of a bolt that you've just put in, you might be lucky that the remaining bit of bolt unscrews fairly easily. Try turning it using the point of a small screw driver or scriber .......

[SMD]

I didn't do it up that tight. Tried to tighten them all to 20nm and after tightening a few bolts successfully I got a rough idea of what 20nm felt like. I was going easy on them too. The silicone went on yesterday and the bolt sheared today so hopefully the silicone will stop it from leaking

[Andy H]

I didn't do it up that tight. Tried to tighten them all to 20nm and after tightening a few bolts successfully I got a rough idea of what 20nm felt like. I was going easy on them too. The silicone went on yesterday and the bolt sheared today so hopefully the silicone will stop it from leaking

I thought they were all tiny 6mm bolts so only need 8nm

[Edit] Haynes says:
8nm + 30 degrees for sump
15nm for "Casting-to-cylinder block/oil pump bolts"
40nm for "Casting flange-to-transmission bolts"
[second edit] must type faster[/edit]

[Andy B]

I didn't do it up that tight.  .....

 

Put a M6 bolt in a vice, put your 10mm spanner on the head & turn it till you shear it ...... it takes a fair bit of doing 

[Andy B]

....
I thought they were all tiny 6mm bolts so only need 8nm

they are 

probably 

[tunnie]

8Nm is a lot, lot less than you think, its barely nipped up.

I have Halfords Torque Wrenches, do quite a good job 

[SMD]

They are M8 bolts and 20Nm was recommended by a member here who worked at the VX factory putting these things together. I did overtighten them the first time though, so probably weakened them then...probably 

[symes]

can you unscrew remainder? if you can-all not lost-Heli coil kit(screw fix) toolstation) m6 iirc 

[Andy B]

They are M8 bolts and 20Nm was recommended by a member here who worked at the VX factory putting these things together. I did overtighten them the first time though, so probably weakened them then...probably 

The lower pressed steel sump pan? Held on with eleventeen bolts? 

they have a 10mm hex head and are M6 

[SMD]

Haven't tried to unscrew it, but how? The holes are too small to get pliers in. The only way appears to be drill it out

Symes, Wouldn't I still need to take the remaining part of the bolt out to use helicoil?

Edit, yes you are right Andy, I'm getting mixed up with the size of the head and thread. It has a 8mm hex head and thread is M6 and there are 20 of the buggers

[Andy B]

......

Edit, yes you are right Andy, I'm getting mixed up with the size of the head and thread. It has a 8mm hex head and thread is M6 and there are 20 of the buggers

Still mixed up  standard bolts
M5 bolt has an 8mm hex head.
M6 bolt has a 10mm hex head.
M8 bolt has a 13mm hex head.
M10 bolt has a 17mm hex head.
M12 bolt has a 19mm hex head. 

[symes]

mate-if you can get remainder out-as said before-and it is m6 thread-stripped enough of v6's-coffee tables mate

[SMD]

I agree with your post Andy but in this case you are wrong (not that it matters). It's definitely a 8mm head. I still have the socket attached to the ratchet extension. Maybe they are different on MFL models? Or maybe its M5 thread?

Either way I might try to drill it out next weekend if I can find the courage.

[symes]

the bolts are not hex-they are torx and yes a 8mm socket will fit-however its a number 10 torx

[SMD]

Ok, thanks for clearing that up. Sorry for the noobiness. 

Any idea of the length of the bolt and where I can get similar looking ones? Or better still, you got a couple spare?

[omegod]

Machine mart do a decent little kit that got me out of the shit a few ago when a stat cover on my mates focus sheared as I tightened it, 4 different size reverse thread easy outs with the right size drill bits at about £12. Should sort it if it's not too tight

[Andy B]

the bolts are not hex-they are torx and yes a 8mm socket will fit-however its a number 10 torx

Of course they are ...... it's been a while since I was under the car 

[symes]

mate this is what you need-- m6 bolt 10mm long  hope that helps-i got all parts from inlet trumpets to sump bolt in box's but it;s 2.5 engine not 3.2

[SMD]

Omego, Any links? I got a book here somewhere...I'll have a look
 
Symes, thanks. But I want to have an odd looking bolt, don't ask why    are the bolts on the 2.5 sump different?

[Andy B]

.....

Either way I might try to drill it out next weekend if I can find the courage.

I don't think it'll be very tight. If a bolt is that tight the head shears while removing it, then it 'king tight, but you sheared it putting it in. If you drill it out, be very careful .... tapping size for M6 is 5mm.
Just try to turn it with a small screw driver or pointed scriber before you get the drill out. 

[Andy B]

.....
But I want to have an odd looking bolt, don't ask why  ......

You won't see an odd bolt from the top of a bus ......   

[Andy H]

20 m6 bolts about an inch apart clamp the oil pan in place while the 'glue/sealant' sets.

If it was my car I would gather the parts to fix the bolt next time I took the sump off.

In the meantime I would fill it with oil & drive it.

[symes]

.....

Either way I might try to drill it out next weekend if I can find the courage.

I don't think it'll be very tight. If a bolt is that tight the head shears while removing it, then it 'king tight, but you sheared it putting it in. If you drill it out, be very careful .... tapping size for M6 is 5mm.
Just try to turn it with a small screw driver or pointed scriber before you get the drill out. 

+1 and heli coil kit ts about £10 and has drill bit/tap/all you need

[symes]

20 m6 bolts about an inch apart clamp the oil pan in place while the 'glue/sealant' sets.

If it was my car I would gather the parts to fix the bolt next time I took the sump off.

In the meantime I would fill it with oil & drive it.

if not leaking-leave it be mate till you got new gasket/bolt-TBH that;s what I would do

[omegod]

Omego, Any links? I got a book here somewhere...I'll have a look
 
Symes, thanks. But I want to have an odd looking bolt, don't ask why    are the bolts on the 2.5 sump different?

Should do the trick as long as you drill straight!

http://www.machinemart.co.uk/shop/product/details/cht526-12pce-drill-screw-extractor-s

[Andy B]

20 m6 bolts about an inch apart clamp the oil pan in place while the 'glue/sealant' sets.

If it was my car I would gather the parts to fix the bolt next time I took the sump off.

In the meantime I would fill it with oil & drive it.

if not leaking-leave it be mate till you got new gasket/bolt-TBH that;s what I would do

See the/my first reply 

[symes]

Omego, Any links? I got a book here somewhere...I'll have a look
 
Symes, thanks. But I want to have an odd looking bolt, don't ask why    are the bolts on the 2.5 sump different?

pm sent mate

[SMD]

Thanks for all the replies.

symes, thanks buddy replied to your PM.

Andies, car is already oiled up and in use but not yet checked if its leaking. Will do this next weekend. I hope it doesnt because I really don't want to do this again. I left the silicone 18 hours to cure and then I disturbed the bolt so it should be ok... but then again it could leak because I disturbed the bolt and the silicone in the process    I will try Andy Bs suggestion of using a screwdriver to try and turn it. Dont own a scriber, have no idea what one is    #

Thanks Omego for the link

[Andy B]

....
Dont own a scriber, have no idea what one is    #
......

Hardened steel 'pencil' for scratching/scribing lines onto metal 

[SMD]

ahhh, sounds like a very handy tool