Category Archives: GT6 General

123 tune distributor initial Ignition curve

At the weekend I fitted my new 123 tune distributor.  I fitted a new fusebox and relays to improve the power feed to try and eliminate any losses in the ols switchgear and corroded connections.

The fitting was very straight forward as described in the manual.  The only fiddly bit was a modification I had to make to the old Delco securing clamp.  This was expected as the 123 is designed to be a direct replacement for the Lucas, not really for the delco.

The modification only involved opening the clamp hole up by about 10mm in diameter.  (where the clamp clamps around the dizzy.)

123 tume ignition map
ignition advance curve for 123 tune fitted to A Triumph GT6 Mk3

The keener eyed folk will notice the timing is set to 0Deg BTDC until 500rpm.  This is a very big advantage with starting.  in the past unacheivable with classic mechanical dizzys


the button below will take you to the .xml code for you to use and modify as you need.  I hope it helps.

123 curve

GT6 front panels and bumper

Here i am fitting the front panels and bumper to my Triumph GT6 Mk3.  Unfortunately i have had to fit an old bumper for now.

In these picture I am trial fitting the front valance so I can line up some brackets to be welded on.  These will be the mounting points for the front numberplate.  GT6 Mk3 valance

The front indicators are installed and working after a few hours tracking faults in the loom.  Hazard light were a pain.  I got there in the end after finding the green/red and Green/white wires from the switch to the bulbs had internal breaks in the loom.

I am trying to get the car ready to move to another location.  Ideally I would like to have the valance painted and on.  Also with the bonnet fitted and aligned.  The difficulty is in getting the bonnet to the car.  I might resort to putting it on a roof rack.

GT6 rear end view
Gt6 MK3 rear end view as the car starts to come together
GT6 MK3 bonnet fitted
GT6 MK3 bonnet fitted

GT6 Mk3 dashboard

GT6 dash panel
Gt6 dash panel with gauges and switches fitted

GT6 Dash panels

I had to make up new dash mounting brackets due to new ones not being available

I have had too leave the dash fitting here.  Mainly due to the fact that I want to replace the heater ducting pipework.  This is proving to be hard to get hold of.

For reference the GT6 Mk3 ducting diameters are as follows

De mister ducting-  38mm  or 1 1/2 inches

Dash vents – 44mm or 1 3/4 inches.

I have sourced the pipework from here on a next day delivery.

The Mounting brackets were fabricated with M4 countersunk screw welded into 16 gauge strips of steel.  these need to be screwed into the back of the left and right dash panels and aligned in the body to sit square with the  corresponding burr walnut panels.

I hope to be attacking this job at the weekend and maybe even attempting to start the car…

Burr walnut GT6 Mk3 dash
Dash board 90% in.

Most of the dash is in.  I am waiting for a new Tack cable before I complete the installation.

GT6 glass instalation

GT6 Passenger door glass
GT6 Passengers door glass roughly fitted
GT6 door fitting
GT6 passenger door trial fitting of glasses

After a lot of Jiggling and poking, I eventually got the two glasses fitted to the GT6.  Then realised I had to remove them to fit the galss seal clips for the inner and outer weather strips.

I had stop short of fully installing the door contents as my rear window channel had not window felt guide remaining in it.  Never fear, its now on order along with the drivers mirror.  I think that is the first item I will need to fit on the other door.

"GT6 drivers door fitting"
GT6 drivers door fitting
GT6 Read off side window
GT6 Read off side window

Rear screen in

GT6 radiator fitting and modification

Below is the radiator fitted.  I might descide too fit an electric fan in the future.  with this in mind I thought it would be wise to have an M22 boss soldered to the radiator in preperation for that day.  For now it is plugged with the correct coolong fan switch.  convenient…

Berkshire radiators did the rad for me, he also repaired a small leak, pressure tested the rad and painted it.  all for £15.   Many thanks to them for this.  Here is a link to there site in case you need cooling work.  radiators and Air con..

GT6 Cooling fan switch fitted for future mods

GT6 Trial door fitting

Trial mount of GT6 NS door
The Near side GT6 door is trial fitted as a bare carcase..

Fitting the door was quite a pain.  It still has quite a gap to the sill.  It seems I need to remove the lower hinge-body gasket.  The hinge is as far in as i can move it.  we shall see..

drivers GT6 door repairGT6 Door frameGT6 door

Below is the latest nightmare.  The drivers door appears to be too long.  The the door adjusted fully forwards, the door skin still contacts the rear wing at the lower swage line.  All I can think to do is grind the door skin back a few mill, then tag the skin back together with weld.

GT6 door skin adjusted
GT6 door skin adjusted

GT6 door skin repair

Re-glossed GT6 door skin
Skin trimmed, filled, primed and painted

GT6 rear bumpers

Rusty Gt6 bumper mount bars
This is an example of the bumper bars
Gleaned bumper bars
bumper bars cleaned of with flap disk on grinder

The bumper bars were in a right state.  Two had to have to old inner wing remains cut off then due to corrosion.  The bars were cleaned back to metal with a course flap disk on an angle grinder and are ready for a coat of paint tonight.

GT6 Bumper fitted