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Rocco
 Post subject: 25D Vs 45D Distributor
PostPosted: Tue Sep 27, 2011 7:25 pm 
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848cc
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Joined: Thu Jul 07, 2005 6:13 pm
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Location: Perth WA
Hi,

My A series 1275cc has a 25D distibutor with the vacuum blocked off due to the twin carbs.

I think my dissy is playing up and i am thinking of replacing it, is it worth sourcing a non-vac distributor or is it okay to block off the vac on a new unit.

P.S. Is there any difference between a 25D & 45D distributor?

Thanks

Roc
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drmini in aust
 Post subject:
PostPosted: Tue Sep 27, 2011 7:34 pm 
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Non-vac 45Ds (actually called 43Ds) were used on Minis 1975-1978. Plenty about and they are a good robust dizzy. Even better if you toss the points and fit an electronic module (Pertronix etc) in them. :wink:

I used one for years in my modified 1310S.

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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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1071 S
 Post subject:
PostPosted: Tue Sep 27, 2011 8:11 pm 
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998cc
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Joined: Fri Apr 01, 2011 8:33 pm
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Depending on the type of carb there's no reason to forego a vac advance because you have twins. And without it you're throwing away $$$.

Cheers, Ian
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Kochie
 Post subject:
PostPosted: Tue Sep 27, 2011 8:20 pm 
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Location: Brisbane
Try the Nissan Pulsar dizzy, no points to worry about, I have had one for over two years and no problems
Kochie 8)
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drmini in aust
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PostPosted: Tue Sep 27, 2011 8:23 pm 
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Kochie wrote:
Try the Nissan Pulsar dizzy, no points to worry about, I have had one for over two years and no problems
Kochie 8)

I run a Pulsar in the 1360 and another in the 1412 stroker.
Yes they work well, but even better if you get the advance curve modified.

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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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Fiji
 Post subject:
PostPosted: Tue Sep 27, 2011 8:27 pm 
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Location: Bris / Syd
do you have to take it somewhere special to get the advance curve modified

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drmini in aust
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PostPosted: Tue Sep 27, 2011 8:29 pm 
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Graham Russell does them.

Russell Engineering
113 North Rocks Rd
North Rocks 2151
(02) 9630 2195

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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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Fiji
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PostPosted: Tue Sep 27, 2011 9:18 pm 
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cheers, i just bought one. but thats far a far away. i;ll let read speed have some fun with it. i'm sure he'll carve it up. :D

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drmini in aust
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PostPosted: Tue Sep 27, 2011 9:57 pm 
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Fiji wrote:
cheers, i just bought one. but thats far a far away. i;ll let read speed have some fun with it. i'm sure he'll carve it up. :D

Reduce the centrifugal advance slot lengths to give about 10° max.
See my how-to at top of mods forum. :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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Fiji
 Post subject:
PostPosted: Tue Sep 27, 2011 10:39 pm 
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will do thanks

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