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cooperess
 Post subject: Sump Crack Testing
PostPosted: Tue Jun 26, 2018 4:42 pm 
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Joined: Wed Sep 30, 2015 9:38 am
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Location: Brandy Hill, NSW
How does one check for cracks in the sump before rebuild? The sump is bare but has what looks like an external crack.
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mickmini
 Post subject: Re: Sump Crack Testing
PostPosted: Tue Jun 26, 2018 5:08 pm 
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Joined: Mon Apr 26, 2004 6:31 pm
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Location: Sydney - strangely, I am glad of the sight of hills!!
dye penetrant test?

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cooperess
 Post subject: Re: Sump Crack Testing
PostPosted: Wed Jun 27, 2018 10:51 am 
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Location: Brandy Hill, NSW
Where do you get the dye penetrant from?
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awdmoke
 Post subject: Re: Sump Crack Testing
PostPosted: Wed Jun 27, 2018 11:56 am 
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Location: Rockingham - Collie WA
Pressure wash it inside and out
Pressure wash it again
Clean the crack area inside & out with prepsol
Add a couple of drops of blue food colouring to the suspected crack, wipe off with a clean dry cloth
The crack will be evident if it exists

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simon k
 Post subject: Re: Sump Crack Testing
PostPosted: Wed Jun 27, 2018 12:35 pm 
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Location: Wodonga - Vic/NSW border
get it welded up anyway - if it's not a crack now, it might become one later

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drmini in aust
 Post subject: Re: Sump Crack Testing
PostPosted: Wed Jun 27, 2018 8:59 pm 
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Location: near Baulkham Hills, NSW
I have a proper Rocol dye check kit, can check for nix if you want to send it down.
Can get it TIG welded by GR if cracked.
Got a pic?

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Convertible Mini
 Post subject: Re: Sump Crack Testing
PostPosted: Sat Jun 30, 2018 9:27 am 
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Joined: Thu Dec 09, 2004 6:57 am
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Location: JIMBOOMBA QLD.
It is simple just splash talcum powder on the crack outside and put some Kerosene on the inside. The talcum powder will soon tell you there is seepage of any sort. It gets wet. "words came to me from the late Mini Guru JACK READ back in the 80s".

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winabbey
 Post subject: Re: Sump Crack Testing
PostPosted: Sat Jun 30, 2018 1:08 pm 
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Joined: Wed Oct 03, 2007 9:04 pm
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Location: Melbourne, VIC
If you find it is cracked you can get it repaired at Lynx Engineering according to the following advert from the 1970's. :shock: :wink:

Attachment:
Lynx Gearbox Case Repairs p1.jpg


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simon k
 Post subject: Re: Sump Crack Testing
PostPosted: Sat Jun 30, 2018 3:31 pm 
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Location: Wodonga - Vic/NSW border
$5 is OK, but $20!! I can get a whole new gearbox for that!!

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9YaTaH
 Post subject: Re: Sump Crack Testing
PostPosted: Sun Jul 01, 2018 9:31 am 
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Location: Sthrn HiLoLands, NSW, Australia
Lynx has moved!

http://www.lynxcorp.com.au/main.php?idx=home

https://www.lynxauto.com.au/

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drmini in aust
 Post subject: Re: Sump Crack Testing
PostPosted: Sun Jul 01, 2018 10:27 am 
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
Use another Mini K etc case. Restamp the box to the S number if you care enough to bother. :)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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Timbo
 Post subject: Re: Sump Crack Testing
PostPosted: Mon Jul 02, 2018 10:07 am 
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Joined: Mon Sep 12, 2005 11:48 pm
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Location: Hobart, Tasmania
I had one welded once. I drained the oil and took in the whole power unit. The welder flipped it upside down, welded the crack and even built up the broken off fins. Charged me next to nothing.

Tim

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