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PostPosted: Thu Apr 15, 2010 8:18 pm 
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1098cc
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Location: Wellington,
HI Kev

Can you actually buy the nissan seals in OZ

Do you have a part number

Ta

Bernard


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PostPosted: Thu Apr 15, 2010 9:43 pm 
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Location: near Baulkham Hills, NSW
Bernard,
Sorry no I don't, I pulled that pic from the South African Mini site.
I get the (similar) Viton ones from Todd Miller in USA.
http://www.austinamericausa.com/
an email link is on his site.

I have `some' in stock (not heaps though)
If you want I will send you 4, @ Aus$5 ea + post.
I suggest just use them on the inlets, I reckon they seal too good for exhausts.
:wink:

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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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PostPosted: Fri Apr 16, 2010 7:42 am 
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1098cc
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A question, will they fit with Isky springs (double springs)

Also what valve springs do you run with your RE13 cam in your 1360

TA

B


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PostPosted: Fri Apr 16, 2010 11:12 am 
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Don't know about Isky springs.
[edit] max diameter of my Viton ones is 14.50mm.

I run Minispares springs C-AEA526 (180lb) with both RE13 and RE282 cams.
These springs are good for max .495" valve lift, and 8000rpm.
I get them from www.karcraft.com.au

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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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PostPosted: Sun Apr 18, 2010 8:17 pm 
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Kev pm sent


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PostPosted: Thu Jul 08, 2010 6:16 pm 
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998cc
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So can anyone confirm if on an early 12G295 head are there stem seals fitted origonally?

the head i have is the early 12G295 with the springs around the tops of the collets.

can you use the orings and the stem seals at the same time?

will it smoke if i dont use stem seals at all?

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'66 BRG Morris Mini Deluxe 60HP ATW
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PostPosted: Thu Jul 08, 2010 7:10 pm 
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jester99 wrote:
So can anyone confirm if on an early 12G295 head are there stem seals fitted origonally?

the head i have is the early 12G295 with the springs around the tops of the collets.

can you use the orings and the stem seals at the same time?

will it smoke if i dont use stem seals at all?

Early (all were early, no?) 12G295 had no valve stem seals like we are discussing.
They had an O-ring in the collet groove, below the collets, inside the valve's spring cap.
Most people that are building 295s for power these days, start off by fitting 1275 length valves (often 1275 valves with the heads turned down). Then YES there is room for proper seals.

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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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PostPosted: Thu Jul 08, 2010 8:31 pm 
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Ok excellent, thanks for that. just trying to find out exactly what is supposed to be there and what fits and what doesnt.

thanks drmini.

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PostPosted: Thu Jul 08, 2010 9:42 pm 
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jester99 wrote:
Ok excellent, thanks for that. just trying to find out exactly what is supposed to be there and what fits and what doesnt.

thanks drmini.

If buying valve guides you will find that smallbore ones are usually NLA. You can fit 1275 ones if you shorten them (bottom end).

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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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PostPosted: Fri Jul 09, 2010 10:16 am 
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1098cc
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Location: wasleys S.A.
[quote="drmini ]

pic of the Nissan one- (used by guys on the Sth Africa forum)
My USA ones look the same but the top is blue.
Image[/quote]

the honda BA18 engine valve seals are the same. They have a locking ring that fits the groove in the valve guide. The honda has two seals, one is a wiper seal on the top and the inner one is desiged to stop any oil into the guide and any blow by between the stem and guide on the exhaust valves. They are vitron and the upper seal has a teflon compound.
when fitted the top of the seal is only about 3mm above the top of the guide .
I get a full set of seals [does two mini heads] from Autopro and the last set I got cost $28
if you need "K" type guides the same heads guides are about .003" bigger in OD and need about 3/16" machined off the top and they are exactly the same as mini. The groove for the seal is then spot on for height.

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