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Re: More on Electronic Ign's

To: 6pack@autox.team.net
Subject: Re: More on Electronic Ign's
From: Bernard Robbins <brobbins@wlg.nec.co.nz>
Date: Fri, 04 Feb 2000 10:21:36 +1300
Hi Jim,

I should have elaborated on the problem with my dizzy - in addition to the
shaft wear, the cam which operates the points had also worn badly which
affected the dwell angle etc etc. I quite agree one should get the wear
taken out of the shaft (otherwise it's really hard to get the car to run
properly!).

I sourced my Lumenition through a Lucas distributer here in New Zealand.
However, I understand they are available from Rimmer bros
(www.rimmerbros.co.uk) or similar outfits in the UK. It cost me $NZ400
which would be around $150 - 250 US I guess. This is probably a bit more
expensive than other available brands, but my view is you get what you pay
for.

Futher to request for installtaion information.....

Installation is pretty simple. Usual advice of Read the instructions first!!

In the Distributor
remove points, 
install sensor to dizzy (uses same mountings) 
install chopper over old points cam.

There are 6 wires 
- 3 to sensor
- 1 to Earth
- 1 to Coil Negative
- 1 to Ignition

I have installed my Power Amp below the washer bottle ono the LHS of my car
(my car is RHD).
Then simply picked up a spare tag off the ignition on the fuse block.
Timing is done in the usual way.

The kit has full instructions. Anyone with some basic DIY skills should be
able to install in less than an hour.

If the kit dies, it would take aroud 10 mins to remove the sensor and
re-install the points.

As far as maintainance goes, there isn't any other than the usual checking
of the timing when you do the tappets etc.

Hope this is helpful.

Regards
Bernard RObbins
1973 TR6PI
1971 2500PI





At 13:37 3/02/00 -0500, Jim Davis wrote:
>Bernard,
>       Where did you source your Luminition ignition? I understand it is much
>superior to the Petronix unit.
>       As to the Petronix unit, both on this list and the main Triumph list I
>have read about its many failures. If one has a wobbly dist. shaft they
>should have the shaft rebushed or purchase a rebuilt unit, not pay $75
>for an unreliable ignition system that has no, or a very slight
>performance advantage.
>My $.02
>Jim Davis
>Fortson, GA
>CF38690UO
>CF37325U
>
>Bernard Robbins wrote:
>> 
>> Hi Guys,
>> 
>> I have a Lumenition installed on both my TR6 and 2.5 PI Saloon. This is an
>> optical based system with a sensor in the distributor and replaces the
>> points altogether.
>> 
>> The saloon has covered approx 70,000 miles without missing a beat.
>> Originally my reason was to get around problems with a worn distributor
>> drive which it did beautifully.
>> 
>> Overall I get significantly better starting especially in the cold and a
>> significant improvement in performance about 3500 RPM due to a stronger
>> spark. The additional performance may be a function of the large intake
>> area of the PI system and I don't know if you would get the same on a
>> standard carbed setup (the carbed saloon cars seem to taper off around 4500
>> RPM when they start to run out of breath).
>> 
>> I have always kept a spare set of points and associated hardware in the car
>> in case of problems but have never had to use them. It would take around 10
>> mins with a screw driver and feeler gauge to return the car to stock.
>> 
>> The only problem I have had was in the installation of the TR6 Lumenition
>> with intermittant missing. The fault turned out to be an intermittant open
>> circuit in one of the sensor wires. I simply replugged and have had no
>> further problems.
>> 
>> To give an idea of the additional spark, I tested before and after fitting.
>> The spark at the end of the HT lead was blue up to about 5mm and could be
>> stretched to around 10 - 12 mm length before it failed. With the
>> lumenition, I can get a purple spark up to around 10mm and it could be
>> stretched to around 55mm before it failed.
>> 
>> Hope this is helpful...
>> 
>> Bernard Robbins
>> 1971 2500PI
>> 1973 TR6 PI
>
>
Regards


Bernard Robbins

Installation Department
NEC New Zealand Ltd
P.O. Box 1936
Wellington

Ph      (04) 381 6274
fax     (04) 381 6284
email   brobbins@wlg.nec.co.nz


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