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[TR] TR3A Distributor

To: triumphs@Autox.Team.Net
Subject: [TR] TR3A Distributor
From: terryrs@comcast.net
Date: Sun, 14 Oct 2007 21:56:26 +0000
Shipswrong Disease.
My distributor is original to the car (it seems, anyway).  It's a DM2, and the 
points that I've been able to get didn't fit right.  Also, the top and bottom 
points plates were wildly loose in the center and wobbled badly.  So I sourced 
an upper/lower points plate for a 25D.  
Things started going squishy.
For starters, the new lower plate did not have the pronged mounts for the 
terminal bush (where the coil wire attaches). So to make things fit, I took the 
old bottom plate off my DM2 dizzy, attached it to the new 25D top plate, and 
was in business.  
When I took the plates off the dizzy, I inspected the centrifugal weights.  I 
should have known better.  If I hadn't seen the problem, it wouldn't have 
existed, right?  One of the weights had the spring completely broken and off.  
Off I went to the hardware store, picked up some small light action springs, 
and manufactured replacements that let the weights swing easily, yet rebound.  
At the same time, I cleaned and put tiny drops of oil on the action pins.
So two questions: 
After reassembly, I seem to lack power, and hear pinging I didn't hear before 
on acceleration.  I seem to have two courses of action that may be correct.  1) 
Do I simply advance the timing, thinking that the new top plate from the 25D is 
more retarded than the DM2?  ...Or 2) Do I need to order the $30 set of springs 
because the ones I manufactured don't have the right physical properties?
Terry Smith, '59 TR3A
New Hampshire
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