Yes the threads are 11/16" UNF.
Mini Spares does a hose kit from block to filter with fittings, but I can't see the fittings listed separately.
http://www.minispares.com/Product.aspx? ... 398&title=
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| Oil Cooler Nipple https://www.ausmini.com/forums/viewtopic.php?f=2&t=73258 |
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| Author: | IndigoBlueCooperS [ Mon Sep 26, 2011 7:31 pm ] |
| Post subject: | Oil Cooler Nipple |
Anyone know were I can get the block and oil filter head nipples for a late model A+ engine to take standard Cooper S style oil cooler hoses? The block thread (which is the same as the filter head) looks to be 11/16 with 20TPI, which is larger than the early A+ engines. |
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| Author: | IndigoBlueCooperS [ Wed Sep 28, 2011 7:08 pm ] |
| Post subject: | |
So who has fitted an oil cooler to a late model A+ block with the larger threads? What nipples or hoses were used??? |
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| Author: | woodwormm [ Wed Sep 28, 2011 7:28 pm ] |
| Post subject: | |
hehe, he said nipple! hehe sorry having a ren + stimpy moment... hopefully someone else has something constructive to say |
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| Author: | drmini in aust [ Wed Sep 28, 2011 7:32 pm ] |
| Post subject: | |
Yes the threads are 11/16" UNF. Mini Spares does a hose kit from block to filter with fittings, but I can't see the fittings listed separately.
http://www.minispares.com/Product.aspx? ... 398&title= |
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| Author: | IndigoBlueCooperS [ Wed Sep 28, 2011 8:06 pm ] |
| Post subject: | |
Somerford list some hoses which have the nipple incorperated into the hose, but they are long ones for a Clubman - no seperate nipples. |
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| Author: | drmini in aust [ Wed Sep 28, 2011 8:28 pm ] |
| Post subject: | |
If you want to use S hoses or similar (the usual 1/2" BSP flare fitting) I can screwcut brass ones, but I would need to find an 11/16" UNF nut to fit them to.. it's not a real common size. Or, I buy an 11/16" UNF dienut. Much faster process, IF I can find one. 
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| Author: | IndigoBlueCooperS [ Wed Sep 28, 2011 9:00 pm ] |
| Post subject: | |
Found a tap at Chronos in the UK. 11/16 UNF, but not sure of the TPI to confirm the thread. |
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| Author: | drmini in aust [ Wed Sep 28, 2011 9:40 pm ] |
| Post subject: | |
Tap is no good, I need a die, to cut external threads. I will try Graham Macdonald's tomorrow. UNF is UNF, thats what was the old American SAE fine thread. Only 1 pitch per size, unlike metric threads. UNC is their coarse pitch one. Here's one- http://www.ebay.com/itm/RDGTOOLS-11-16- ... 5192c66d9b |
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| Author: | IndigoBlueCooperS [ Wed Sep 28, 2011 9:46 pm ] |
| Post subject: | |
My mistake, They have a "11/16 UNF Carbon Die (Ref: 1116UNFD)" for 20 pounds. |
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| Author: | drmini in aust [ Wed Sep 28, 2011 10:02 pm ] |
| Post subject: | |
IndigoBlueCooperS wrote: My mistake,
They have a "11/16 UNF Carbon Die (Ref: 1116UNFD)" for 20 pounds. That one I listed above is cheaper, freight is very cheap too. If you buy me a die, I will make you 2 brass fittings 1/2" BSP-11/16 UNF for $20/pr, + post. Just to get you out of trouble...
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| Author: | drmini in aust [ Thu Sep 29, 2011 10:35 am ] |
| Post subject: | |
OK the plot thickens... According to Graham McDonald Services, 11/16" x 20tpi is NOT UNF, it is UNS (ie special). A die is available, $109.00 +GST. Dienut is unavailable.. 11/16" UNF thread is 16TPI, not 20. As you only want 4 fittings made it's hardly worth spending $119.90 on a die, IMO. Once the lathe is set up I can screwcut them. Unless we can get a die cheaper on the web.. I'll have another look.
I wonder what possessed Rover to use such an obscure thread- surely Metric would have made more sense if they really had to change it!! |
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