What happens when cleaning the head goes horribly wrong
#1
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Some here may have read what happened to me when I tried the 'dip a vacuum hose in some water and feed it into the intake to clean the combustion chambers' trick a couple of weeks back.....
Well... the replacement of the engine is progressing well, and I will look to rebuild the old damaged motor at some point, but first - here's the damage that occurred.....
This is a straight conrod (cyl 4):
![Name: DSC00181.jpg
Views: 49
Size: 102.8 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216136d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00181.jpg)
This is a bent one (cyl 1)
![Name: DSC00178.jpg
Views: 50
Size: 78.1 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216137d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00178.jpg)
Messy huh???
This is the intake side - you can see how it cleaned things up, but also how the little bit of residual standing water in the head around the valves is causing some surface rust:
cyl 4 -
![Name: DSC00182.jpg
Views: 35
Size: 72.7 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216138d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00182.jpg)
and cyl 1 -
![Name: DSC00183.jpg
Views: 52
Size: 66.6 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216139d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00183.jpg)
However, every dark cloud has a silver (polished?) lining. Replacing the motor gives me an opportunity to finish the job of making it all look good.....
![Name: DSC00175.jpg
Views: 56
Size: 71.3 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216140d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00175.jpg)
![Name: DSC00174.jpg
Views: 69
Size: 71.4 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216141d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00174.jpg)
More pics will follow as I progress (including the full tear down of the old engine.....
Well... the replacement of the engine is progressing well, and I will look to rebuild the old damaged motor at some point, but first - here's the damage that occurred.....
This is a straight conrod (cyl 4):
![Name: DSC00181.jpg
Views: 49
Size: 102.8 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216136d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00181.jpg)
This is a bent one (cyl 1)
![Name: DSC00178.jpg
Views: 50
Size: 78.1 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216137d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00178.jpg)
Messy huh???
This is the intake side - you can see how it cleaned things up, but also how the little bit of residual standing water in the head around the valves is causing some surface rust:
cyl 4 -
![Name: DSC00182.jpg
Views: 35
Size: 72.7 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216138d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00182.jpg)
and cyl 1 -
![Name: DSC00183.jpg
Views: 52
Size: 66.6 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216139d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00183.jpg)
However, every dark cloud has a silver (polished?) lining. Replacing the motor gives me an opportunity to finish the job of making it all look good.....
![Name: DSC00175.jpg
Views: 56
Size: 71.3 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216140d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00175.jpg)
![Name: DSC00174.jpg
Views: 69
Size: 71.4 KB](https://www.miataturbo.net/attachments/general-miata-chat-9/216141d1501272869-what-happens-when-cleaning-head-goes-horribly-wrong-dsc00174.jpg)
More pics will follow as I progress (including the full tear down of the old engine.....
#7
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I know about the laws of physics - I did when I tried this trick too.....
If you do a look through the Greddy thread for a post on 'taking the head off', you'll see how this all got so out of shape, and how a little bit iof mis-(missing) information can do lots of damage.
Mazda specialised part of not - I'm not keen on the thought of doing this myself ever again. My Mazda workshop can do it, and when/if they get it wrong, they can do the bloody rebuild instead of me.....
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