Lotus Elan

Petronix Ignition and Tach

PostPost by: tvacc » Wed Jun 29, 2005 2:00 pm

I am posting this for the person that bought my Elan.72 Sprint



He just had a Petronix ignition installed and the tach now does not work. I
am sure somebody out there knows the answer.



How do I get the tach to work again.?



Tony Vaccaro

www.lotusowners.com
Tony Vaccaro
http://www.lotusowners.com
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Drive Fast Take Chances
71 Spyder Elan, ElanGTS, 93 Caterham, 05 Elise,
99 Elise190, 91 M100 Elan, 74 Europa, 72 Europa JPS #15, 68 Elan Coupe RHD
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PostPost by: TYPE45 at aol.com » Wed Jun 29, 2005 3:08 pm

The original tach will not work with any electronic ignition system. You
must send the tach off to a gauge repair shop to have the entire guts replaced.
I don't know where to send it, but I can advise of two shops that you should
not sent it to.

The Gauge Guys (APT Instruments in Bloomington, MN)
Nisonger (in New York)

Bad experience with both.

Frank Howard
'71 S4 SE
Minnesota
TYPE45 at aol.com
 

PostPost by: "collins_dan2000&quo » Wed Jun 29, 2005 3:35 pm

I just had a Petronix ignition and coil put into my S4 to replace a
previous Lumenition (?) electronic ignition, which will not work
with the original tach. Has something to do with sharing the
current, which the Petronix can do.

Dan


--- In ***@***.***, ***@***.***e:
The original tach will not work with any electronic ignition
system. You

must send the tach off to a gauge repair shop to have the entire
guts replaced.

I don't know where to send it, but I can advise of two shops that
you should

not sent it to.

The Gauge Guys (APT Instruments in Bloomington, MN)
Nisonger (in New York)

Bad experience with both.

Frank Howard
'71 S4 SE
Minnesota
"collins_dan2000&quo
 

PostPost by: Arno Church » Wed Jun 29, 2005 6:16 pm

I do not agree with you on this one. I installed a Pertronix ignitor ( here
in South Africa called an Aldon Igniter but the same thing ) and it worked
just fine on my original 1967 tach

Arno



The original tach will not work with any electronic ignition system. You
must send the tach off to a gauge repair shop to have the entire guts
replaced.
I don't know where to send it, but I can advise of two shops that you should

not sent it to.

The Gauge Guys (APT Instruments in Bloomington, MN)
Nisonger (in New York)

Bad experience with both.

Frank Howard
'71 S4 SE
Minnesota




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Arno Church
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PostPost by: memini55 » Wed Jun 29, 2005 8:40 pm

I also for the last two years have run an ignitor in a 72+2 with no issues
except for the usual of once in a while the tach will not move from rest. A
good thump on the glass and it gets going just fine.
Mark

From: "Arno Church" <***@***.***>
Reply-To: ***@***.***
To: <***@***.***>
Subject: RE: [LotusElan.net] Petronix Ignition and Tach
Date: Wed, 29 Jun 2005 20:16:30 +0200

I do not agree with you on this one. I installed a Pertronix ignitor (
here
in South Africa called an Aldon Igniter but the same thing ) and it worked
just fine on my original 1967 tach

Arno



The original tach will not work with any electronic ignition system. You
must send the tach off to a gauge repair shop to have the entire guts
replaced.
I don't know where to send it, but I can advise of two shops that you
should

not sent it to.

The Gauge Guys (APT Instruments in Bloomington, MN)
Nisonger (in New York)

Bad experience with both.

Frank Howard
'71 S4 SE
Minnesota




_____


----------

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Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.6.5 - Release Date: 2004/12/26









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PostPost by: "Brian Goodison" » Wed Jun 29, 2005 9:33 pm

--- In ***@***.***, ***@***.***e:
The original tach will not work with any electronic ignition
system.


Dont know about other systems but Luminition works just fine in my
Sprint with original tach and a Bosch blue coil.
Brian.
64Elan/72Sprint/J.P.S.Europa/BirkinT.C.Seven
"Brian Goodison"
 

PostPost by: "twincams4u" » Thu Jun 30, 2005 3:03 am

Tony,

The Petronix works with all Smiths RMI, current sensing tachs.
Although, if my memory serves me the original wiring doesn't provide
as strong of a signal to the pulse loop pick up because of the way
it is grounded. This can lead to an intermittent or a bouncing tach.
The fix is very simple and straight forward. If you have a fax I can
send you a diagram.


--- In ***@***.***, "Tony Vaccaro" <[email protected]> wrote:
I am posting this for the person that bought my Elan.72 Sprint



He just had a Petronix ignition installed and the tach now does
not work. I

am sure somebody out there knows the answer.



How do I get the tach to work again.?



Tony Vaccaro

www.lotusowners.com




"twincams4u"
 

PostPost by: mark030358 » Thu Jun 30, 2005 7:38 am

Hi there,
Any chance of just the description of what and where to do it. Difficult for me to get a fax.

cheers
Mark

twincams4u <***@***.***> wrote:
Tony,

The Petronix works with all Smiths RMI, current sensing tachs.
Although, if my memory serves me the original wiring doesn't provide
as strong of a signal to the pulse loop pick up because of the way
it is grounded. This can lead to an intermittent or a bouncing tach.
The fix is very simple and straight forward. If you have a fax I can
send you a diagram.


--- In ***@***.***, "Tony Vaccaro" <[email protected]> wrote:
I am posting this for the person that bought my Elan.72 Sprint



He just had a Petronix ignition installed and the tach now does
not work. I

am sure somebody out there knows the answer.



How do I get the tach to work again.?



Tony Vaccaro

www.lotusowners.com











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PostPost by: "twincams4u" » Fri Jul 01, 2005 5:06 am

Mark,

On the back of the Smiths RMI tach there are three terminals on a
common plate. Two are bullet type (one male and one female) and the
other is a spade. The spade is your positive 12vdc from the vehicle
ignition switch. It's the same source of power supplying the
positive terminal of the ignition coil. The two bullet terminals are
for the pulse loop pick-up. One terminal should lead to the negative
side of the ignition coil. The other should lead to the black wire
or negative for the Ignitor. The red wire on the Ignitor can be
connected to the positive terminal on the coil. Remember it's being
fed 12vdc from the ignition switch. So in a nutshell the pulse loop
pick-up in the tach is wired in series between the negative side of
the coil and the black wire from the Ignitor. The tach in my Sprint
works perfectly this way.

I also recommend fusing the the tach power (+12vdc) from the
ignition switch with the low amp, fast acting fuse to protect
against shorts or possible surges. good luck!

--- In ***@***.***, Mark Kelly <[email protected]> wrote:
Hi there,
Any chance of just the description of what and where to do it.
Difficult for me to get a fax.


cheers
Mark

twincams4u <[email protected]> wrote:
Tony,

The Petronix works with all Smiths RMI, current sensing tachs.
Although, if my memory serves me the original wiring doesn't
provide

as strong of a signal to the pulse loop pick up because of the way
it is grounded. This can lead to an intermittent or a bouncing
tach.

The fix is very simple and straight forward. If you have a fax I
can

send you a diagram.


--- In ***@***.***, "Tony Vaccaro" <[email protected]>
wrote:

> I am posting this for the person that bought my Elan.72 Sprint
>
>
>
> He just had a Petronix ignition installed and the tach now does
not work. I
> am sure somebody out there knows the answer.
>
>
>
> How do I get the tach to work again.?
>
>
>
> Tony Vaccaro
>
> www.lotusowners.com
>
>
>
>







To search the mailing list archives:
http://www.escribe.com/automotive/europ ... index.html






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Service.



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