ausmini
https://www.ausmini.com/forums/

Broken Bolt / Stud on Engine Updated
https://www.ausmini.com/forums/viewtopic.php?f=2&t=7023		 Page 1 of 2
Author:  CRU17Y [ Mon May 09, 2005 5:34 pm ]
Post subject:  Broken Bolt / Stud on Engine Updated
Well as the title reads broken bolt, :twisted: Yes i have a broken bolt on the engine that goes down into the head snapped off right at the tip of where the threads start.

DAMN!!! waiting for some time at mechanics to take my car in to have fixed.

As much as i would love to fix this myself, im not a mechanic so i wouldn't know what i would be doin.
Author:  aaron [ Mon May 09, 2005 5:46 pm ]
Post subject: 
Unattch zaust, undo head bolts (the ones left) pull head up. Replace bolt. Use a pair of multigrips or something similar. New head gasket. Head back on. Don't forget the bypass hose. Tension down the head. Zaust on. off you go. Should be no more than an hour or so. If ya paying though, they will want to Deck the head for trueness. But thats not a bad thing. But know what your paying for.2 hours max for labour.

Cheers

Aaron
Author:  68matic [ Mon May 09, 2005 5:50 pm ]
Post subject: 
if you can get all new bolts new gaskets new bypass hose, do, and the guy will only charge you for labour.
the parts you know are mini parts and cheaper too
Author:  gafmo [ Mon May 09, 2005 5:53 pm ]
Post subject: 
you possible broke it due to oil being inside the Hole...I have done this also :wink: Make sure you clean out the holes prier to putting them back in..Also a good idea to get a full set on new ones as they may have stretched, Also possible reason :!:
Author:  Mick [ Mon May 09, 2005 5:59 pm ]
Post subject: 
If the stud is sheared off flush with the deck, Ezyouts (Screw Extractors) are what you need. They are easily available from tool shops. (Supercheap might have a set for super cheap if you intend to use it only once or twice)

The ezyout is shaped a little like a tapered thread tap crossed with a drill bit.

http://www.blackwoods.com.au/product_de ... ack_found=

The deal is that you :
a. Center punch the top of the sheared off bolt,
b. drill a hole into the bolt vertically maybe to a centimeter or so's depth (may need to drill further depending on the ezyout used). The size of the hole must be such that it is less than the maximum width of the ezyout so it can bite into the hole once inserted. You'll understand once you've seen one.
c. put the ezyout into the drilled hole until it touches the side of the drill hole and after one or two gentle taps try to turn the bolt anticlockwise.

You turn the bolt by putting a shifter or spanner onto the top of the ezyout like you would a nut. The shape of the ezyout bites into the bolt and pulls itself in harder as pressure is applied. Generally the bolt will undo itself fairly easily if there is nothing like threadlock in the thread. If there is you may need to heat it or tap the bolt with a hammer to break the threadlock before using the ezyout.

A machine shop will charge you about half an hour's labour for the job, depending on how stubborn the sheared bolt is to take out (maybe fifty bucks?), an easy out may cost you half of that.
Author:  gafmo [ Mon May 09, 2005 10:02 pm ]
Post subject: 
If you need an Ezy out let me know...as I purchased one when I broke my bolt...You may be luck and just unscew it like I was able to :wink:
PM sent
Author:  CRU17Y [ Mon May 09, 2005 10:57 pm ]
Post subject: 
Thanks heaps for the ideas, i will see what i can do if i can purchase the new head gasget and bolts before the weekend i will see how things go.

received PM and sent back reply
Author:  gafmo [ Mon May 09, 2005 11:05 pm ]
Post subject: 
If you consider replaceing the bolts/Studs try the normal...karcraft Mini Classic and Pastows but other wise Lee's in North Parra maybe able to help out :wink:
Going from Memory they should be Grade 8's and the black one's.
are you running 1100 or 1275..if 110 I may have a new one spare :wink:
Author:  CRU17Y [ Mon May 09, 2005 11:09 pm ]
Post subject: 
im running a 1100, thanks heaps.

I will give a couple of places a call tommorrow and see how i go, if mini spares have them in stock i will pick them up from there as its only round the corner. but i know he usually gets parts from Karcraft. so i think he will have in stock as he was the one who found it broken hehehe.
Author:  minimark [ Mon May 09, 2005 11:26 pm ]
Post subject: 
Must be the day for it, I snapped a stud on the exhaust/inlet manifold :? very frustrating....
Author:  willy [ Mon May 09, 2005 11:29 pm ]
Post subject: 
minimark wrote:
Must be the day for it, I snapped a stud on the exhaust/inlet manifold :? very frustrating....


Manifold stud is less of a biggy than a head stud!
Thats for sure. :!: :x
Author:  CRU17Y [ Thu May 26, 2005 10:03 am ]
Post subject: 
Well the mini is in for repairs today, dropped her off this morning and hope all goes well now. and hope no more oil leaks. :D :D
Author:  CRU17Y [ Thu May 26, 2005 4:54 pm ]
Post subject: 
Well the head's off and the bolt/stud had been broken further down than first thought, Damn!

apparently there was a fair amount of junk on the bottom of the head which has now been cleaned up, tappet covers will be replaced along with the other gaskets. hope all is smooth sailing from here.
Author:  J_A_M [ Thu May 26, 2005 10:33 pm ]
Post subject: 
i hope your hip pocket survives mate!
Author:  gafmo [ Thu May 26, 2005 10:40 pm ]
Post subject: 
Wont cost to much :?
You should have done it yourself..its good to learn and once you have done it you venture on to somthing else next :wink:
Page 1 of 2 All times are UTC + 10 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/