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Author Topic: Have I destroyed my engine block?  (Read 4247 times)

Offline oakgreener

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Re: Have I destroyed my engine block?
« Reply #10 on: 21 November 2012, 14:49 »
As long as you haven't drilled the hole between the oil way and the outside world too big :whistle:
one other option would be to plug the hole with a taper pin. Bearing all the other precaution in mind
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VW BUSH

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Re: Have I destroyed my engine block?
« Reply #11 on: 22 November 2012, 20:12 »
Quote from: danny_p on 21 November 2012, 00:26
welding in blocks is not allways a good idea,  in this case iu would not reccomend it.

basicly you've hit an oil way if it's leacking in quite an enthusiastic manner it's a pressurised one.  bepending on how much block there is between oil way and whre ethe bottom of the hole should be you have 2 choices.

option 1 )tap the hole,  then cover a grub screw in oil resistant loctite and wind it but not so far as to obstruct the oil way.  this it probaly the best solution but also the most involved  as you will have to wash the oil ways out after and will take more effort to do and do so correctly.

option 2 )  cover waterpump bolt in oil resitant  loctite  do bolt up as per normal and job done.  hope no big bits of swarf found there way into the oilway.  downside is  will need to rember this and possobly heat the bolt ( to soften loctite ) if ever need to change waterpump again but it can be consited a permant fix, unlike ptfe or sillicone.

i'd be recomending loctite 243 

this would do you
http://www.ebay.co.uk/itm/Loctite-243-Lock-n-Seal-Thread-Sealant-3ml-Fast-Acting-Secure-Nuts-Bolts-Screws-/251089040081?pt=UK_Crafts_Cardmaking_Scrapbooking_Glue_Tape_EH&hash=item3a7612b2d1


Spot on.

I would recommend you drain the oil out and fully degrease the area and bolt with FE10 or the likes of, then use plenty of the said loctite.

If this does not work then its not the end of the world, there are a number of ways to fix this without to much bother.

I allways use a left handed drill when drilling out studs, 9 times out of 10 it unwinds when you get into it
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Offline Cory

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Re: Have I destroyed my engine block?
« Reply #12 on: 30 November 2012, 02:51 »
when i had two plugged injector ports blow out on my head, the RAC man gave me something called quiksteel i think, to re-plug the holes with. i was a bit jubilant as first, as it looks like play dough, but it couldnt have worked any better if i had wanted it to. just a suggestion . . .
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Offline blueseamonkey

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Re: Have I destroyed my engine block?
« Reply #13 on: 12 December 2012, 01:38 »
Thanks for all the tips. I lost internet connection for a couple of weeks, hence no reply until now. I finally found a machine shop man who was willing to come out and have a look, (they are quite reluctant to leave the comfort of their shops!) He retapped the thread this morning (the old thread was damaged, explaining why quite so much oil was able to come out.)
I will give the hole a good clean out, change the oil and filter and then see if I can track down any of that thread sealant stuff. The man from the machine shop seemed to think it would work.
I am moderately hopeful that any big bits of swarf might have been expelled by the pressurised oil when it spurted out, rather than going in to the engine, though of course a few more will have been made when the hole was retapped.
« Last Edit: 12 December 2012, 05:06 by blueseamonkey »
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Offline blueseamonkey

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Re: Have I destroyed my engine block?
« Reply #14 on: 12 December 2012, 05:03 »
Found some thread sealant, not the Loctite mentioned, but it looks like it should do the job. Its the bottom product on this page

http://www.hardexworld.com/products/threadlock-cyanoarcyclic.aspx

Possibly even a little OTT for this job, but I'd rather go too strong and need help from the machine shop again to remove it rather than not strong enough and have it blow out on me. Once the newly fabricated bolt comes back I shall fit it, then change the oil & filter. The new bolt is just a threaded rod anyway, just with 2 different threads now, so there's no real reason I'd have to remove it, even for replacing the water pump again - unless the thread gets damaged.

I spent days trying to find a left-handed drill bit before I worked on this (and buggered it up!) seems they do not exist in the Philippines, even the largest hardware shops didn't have them. I'll have to order one from the UK or elsewhere for next time.

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VW BUSH

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Re: Have I destroyed my engine block?
« Reply #15 on: 12 December 2012, 21:52 »
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