stevebubs
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| posted on 23/4/05 at 07:11 PM |
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HELP!!! SHEARED ENGINE MOUNTING BOLTS
Sorry about "shouting".
TWO of my engine mounting bolts have just sheared. NEW bolts, 8.8 High Tensile, sheared in the block using nothing more than a standard length ratchet
(no breaker bar or anything)
Any hints / techniques that I can use to get them out with out taking the fecking engine out would be appreciated.
Tried using easy-outs on the one bolt I could easily reach with my drill, but that sheared off too!
Access is limited without yanking the engine out so any hints / techniques would be welcome, as would an recommendations of someone who could come out
and do it for me (willing to pay reasonable fee) as I'm running out of time for getting the car ready for Le Mans.
Cheers
Stephen
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antonyg
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| posted on 23/4/05 at 07:26 PM |
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i had same problem with an exhuast manifold stud i drilled it out using masonry drill bits and drill on hammer then tapped a new thread in the hole
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rusty nuts
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| posted on 23/4/05 at 07:27 PM |
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As already suggested in past threads throw the eaziouts in the bin ! they are more trouble than they are worth. If you can get at the bolt to drill it
you should be able to get at it to weld on a nut provided it hasn't broken off below the surface of the block. Weld on a nut with the same
diameter as the broken bolt , the heat of the welding and being able to use a spanner to turn the bolt will probably undo the remains . If the nut
shears off weld another one on. Drilling out a broken eaziout will not be easy , believe a masonry drill bit may work as a last resort, Best of luck ,
Rusty
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stevebubs
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| posted on 23/4/05 at 08:26 PM |
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quote:
Originally posted by snoopy
 we usually get them out by welding a fairley large nut to whats left even if its broke in build up the weld and let the nut cool the heat usually
causes expansion so 9 times out of ten it comes out
Forgot to mention that I'd already tried that (twice)
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stevebubs
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| posted on 23/4/05 at 08:28 PM |
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quote:
Originally posted by rusty nuts
As already suggested in past threads throw the eaziouts in the bin ! they are more trouble than they are worth. If you can get at the bolt to drill it
you should be able to get at it to weld on a nut provided it hasn't broken off below the surface of the block. Weld on a nut with the same
diameter as the broken bolt , the heat of the welding and being able to use a spanner to turn the bolt will probably undo the remains . If the nut
shears off weld another one on. Drilling out a broken eaziout will not be easy , believe a masonry drill bit may work as a last resort, Best of luck ,
Rusty
ok...I'll keep welding nuts one of them tomorrow and see if that helps (one still sticks up a bit)
I've now taken the engine out (a mate turned up and we had it out in 30 mins), so access isn't a problem now
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clbarclay
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| posted on 23/4/05 at 08:37 PM |
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There are easy outs and there are easy outs.
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=158&group_ID=1254&store=snapon-store&dir=catalog
Never tried these my self, but have seen them recomended for when all else fails.
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stevebubs
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| posted on 23/4/05 at 08:49 PM |
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quote:
Originally posted by clbarclay
There are easy outs and there are easy outs.
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=158&group_ID=1254&store=snapon-store&dir=catalog
Never tried these my self, but have seen them recomended for when all else fails.
Can anyone recommend a local distributor that may be open on Sunday (i'm in Reading, Berkshire)
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clbarclay
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| posted on 23/4/05 at 10:10 PM |
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I expect any where that deals in tools like these extractors will not have them in stock (personal experiance). Mail order might be better.
Here is snap-on's UK mail order site.
http://buy1.snapon.com/catalog/item.asp?tool=all&item_ID=10460&group_ID=1260&store=uk
Snap on are not the only quality manufacturer producing this type of extracor though. A quick search shows Facom produce a similare item.
http://193.150.169.26/Frame.asp?langue=an&Cat=427
Or theres always the other alternative
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=30900&item=7969387813&rd=1
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Peteff
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| posted on 23/4/05 at 11:38 PM |
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Put some weld on the end of the broken stud to build it up then put a nut on and fill the middle with weld. If the bolt is small enough try drilling
the centre out with the threading size bit then tap the remains out. A ratchet is long enough to get 150 lb/ft of torque on a bolt and will probably
shear anything less than M10 quite easily if you bottom it out with too long a bolt. Get a torque wrench till you get the feel of them.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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stevebubs
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| posted on 24/4/05 at 12:05 AM |
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Thanks - I'll give it a try. The big thing that gets me is that these *are* M10 HT (8.8) bolts! My muscles aren't *THAT* big....I'm
an IT bod/desk jockey by day!!!!
quote:
Originally posted by Peteff
Put some weld on the end of the broken stud to build it up then put a nut on and fill the middle with weld. If the bolt is small enough try drilling
the centre out with the threading size bit then tap the remains out. A ratchet is long enough to get 150 lb/ft of torque on a bolt and will probably
shear anything less than M10 quite easily if you bottom it out with too long a bolt. Get a torque wrench till you get the feel of them.
[Edited on 24/4/05 by stevebubs]
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rusty nuts
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| posted on 24/4/05 at 11:01 AM |
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Our local Halfords in Cambridge stock Facom tools but personally I wouldn't use eaziouts .
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Mix
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| posted on 24/4/05 at 04:20 PM |
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If you are going to try an easy out then these are the only ones that havn't failed me yet.
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=10527&group_ID=1262&store=uk&dir=catalog
They may not get the fastener out but they have never broken in the hole.
Mick
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clbarclay
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| posted on 25/4/05 at 09:25 AM |
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As i uderstand it.
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=10527&group_ID=1262&store=uk&dir=catalog
are for when an allen bolt is rounded.
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=64889&group_ID=16597&store=uk&dir=catalog
are for a normal hexagon bolt is rounded or the re is enough of the bolt/stud left proud of the surface.
and
http://buy1.snapon.com/catalog/item.asp?tool=all&item_ID=10460&group_ID=1260&store=uk
are for when there is nothing sticking out for the other 2 to grip on, like hen a bolt has sheared of flush with the engine block etc.
And at the price they charge, I should darn well hope the don't bust, unlike normal easy outs which cost 2 a penny.
[Edited on 25/4/05 by clbarclay]
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Danozeman
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| posted on 4/5/05 at 02:45 PM |
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A mix said them ones are the best. Just have to watch they dont spread the bolt out too much and make it even tighter!!
Its probably easier to drill it and re tap it..
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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