Engine Block Desperatly Needed

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Engine Block Desperatly Needed

Postby Dan 6511 » Sat Jan 30, 2016 3:52 pm

I know this is a long shot as they are like rocking horse shit these days, but does anyone know of an engine block that is available and not rotten?

I have just snapped off a head bolt on mine, gutted. :(
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Re: Engine Block Desperatly Needed

Postby Admin-bloke » Sat Jan 30, 2016 5:48 pm

Is it just the bolt that had snapped or the block?
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Re: Engine Block Desperatly Needed

Postby jerzybondov » Sat Jan 30, 2016 7:22 pm

Which one did you snap the bolt off from? The original D block?
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Re: Engine Block Desperatly Needed

Postby Dan 6511 » Sat Jan 30, 2016 8:08 pm

Head bolt snapped and left end in the block. On my original delorean block. My volvo block is rotten but all the bolts came out fine, typical!

Alistair recons he knows a place that can extract it, and i've found another machine shop up north that can spark erode it so all is not lost just yet.

bolt.jpg
bolt.jpg (71.78 KiB) Viewed 3799 times


snap.jpg
snap.jpg (110.41 KiB) Viewed 3799 times
Vin: 6511 Reg: TDV 102W (Totaly Diabolical Vehicle)

Sell it Or Sorn it

Road trips:
2008: Mervyn's D Weekend, Ireland
2008: DMC Europe Open House
2009: DMC Europe Open House
2009: Royal D Weekend, Ireland
2010: Silvercoast, France
2010: Shanefest, Ireland
2010: Luxemburg & Nurburgring
2011: Eurofest, Belfast
2019: International DeLorean Meeting, Hamburg
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Re: Engine Block Desperatly Needed

Postby jerzybondov » Sat Jan 30, 2016 9:11 pm

Yeah I'd have fancied your chances of getting that out. What happens with the thread after though? Do you need a special new bolt and tap out a special new thread in the block?
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Re: Engine Block Desperatly Needed

Postby Admin-bloke » Sat Jan 30, 2016 9:42 pm

Dan 6511 wrote:Head bolt snapped and left end in the block. On my original delorean block. My volvo block is rotten but all the bolts came out fine, typical!

Alistair recons he knows a place that can extract it, and i've found another machine shop up north that can spark erode it so all is not lost just yet.

bolt.jpg


snap.jpg


This place near me that's been going for 40 plus years does spark erosion:

http://www.locksideengineering.com/services.php

They did my cylinder head work on my old astra diesel and disc skims etc.

Just say the engine is from a Volvo ;)

Mind you, up North to you may be well 'Down South' to me, all relative. ..
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Re: Engine Block Desperatly Needed

Postby Dan 6511 » Sat Jan 30, 2016 10:29 pm

Cheers for the link Nick. Do you know how spark erosion works? What stops it eating the aluminium as well as the steel bolt?
Vin: 6511 Reg: TDV 102W (Totaly Diabolical Vehicle)

Sell it Or Sorn it

Road trips:
2008: Mervyn's D Weekend, Ireland
2008: DMC Europe Open House
2009: DMC Europe Open House
2009: Royal D Weekend, Ireland
2010: Silvercoast, France
2010: Shanefest, Ireland
2010: Luxemburg & Nurburgring
2011: Eurofest, Belfast
2019: International DeLorean Meeting, Hamburg
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Re: Engine Block Desperatly Needed

Postby Admin-bloke » Sat Jan 30, 2016 10:45 pm

Dan 6511 wrote:Cheers for the link Nick. Do you know how spark erosion works? What stops it eating the aluminium as well as the steel bolt?


http://www.sparkeroding.co.uk/process.htm

The Knowltons will have far better knowledge than I ever would on engineering things like this :D
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Re: Engine Block Desperatly Needed

Postby jamesrguk » Sat Jan 30, 2016 10:53 pm

I looked at spark eroding for a completely unrelated project a few years back.

Effectively spark erosion is just a very high temperature electrical pulse which is very acurately shot into the material you want to remove, at the same time coolant is added. the rapid heating (several thousand degrees c) and cooling effect causes the offending article to shatter and turn to dust, but it is very precise so the huge heat does not effect surrounding material.

That said you would still need to retap the hole and unless I'm mistaken spark eroding / electrode milling, is pretty expensive.

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Re: Engine Block Desperatly Needed

Postby DJK73 » Sun Jan 31, 2016 9:50 am

Hi Dan
I would get it soaking in plus gas straight away as this will help who ever extracts it
Then I would go down the route of extraction rather than spark eroding as that is normally a last resort or for removing broken taps or drill bits etc and it's expensive
A decent machine shop should be able to set that up in a milling machine and drill out the centre of the bolt, this will relieve the pressure on the thread. Then remove it with an "easy out" and some gentle heat. Should save the thread.

Hope that helps

Dan
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