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Triumph Torque    Cars    Herald/Vitesse  ›  Megajolt
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ahebron
November 19, 2017, 6:06am Report to Moderator


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Afternoon
During the slooooooow rebuild of my 6 I am fitting a megajolt system for the ignition.
I am mounting the trigger wheel behind the front pulley to keep it out of the way.
When I look at photos of where people mount there crank sensor they all seem to be on brackets bolted to the chain cover fixings
Would it not be neater to weld a bracket onto the timing chain cover?
Is there any reason why I cannot do this?
The timing pointer on the cover will be coming off as it will foul the trigger wheel.

Adrian


Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
2003 FFRR TD6 HSE
2014 VW Amarok Highline 4Motion
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mpbarrett
November 19, 2017, 8:39am Report to Moderator
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I have recently fitted Megsquirt to my Herald, so ignition only but about to start on the fuel side.
I made up  a bracket to hold the sensor and bolted this to the timing chain cover, it does give you some flexibility. I mounted mine about 50 BTDC, you can correct for the position of the sensor in the software. I think the manual recommends mounting it some way BTDC as there pulse train will before reliable before the fitting stroke.
I would not take the timing pointer off as you will need to check and calibrate the timing (with a strobe) and you need the timing parks to do this.
Am surprised that the trigger wheel will interfere with the pointer, on mine (its a 4 cylinder engine) the trigger wheel is slightly smaller diameter than the pulley, Will see if I have a picture that I can upload.

good luck

regards
mike


"Little Red", 13/60 Herald convertible with 1500 engine and O/D, (1/2 2007 10CR, 1/2 2009 10CR and 1 RBRR). March 2013 Back from darkest Norfolk and now very shiny.... 2017 rust coming thru again
"Little Blue", 2.5L GT6 mk3, Didnt do the 2009 10CR as it refuses��to leave East Anglia. Didnt finish 2010 RBRR due to vibration for propshaft and very doggy ignition. Finished the 2011 10CR, getting ready for the 2013 10CR. Broke down up a 2650M mountain. Now with new owner.
"Little Silver" Triumph Acclaim. Now owned by the editor of Triumph World. Since been sold on....
"Big Blue" 1972 blue TR6 the new toy Was fun one 10CR and a trip thru the Alps. Now in Wales.

Back to the Herald (about to get Megasquirted), Jag XK8 and a campervan.
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Nick Jones
November 19, 2017, 9:49pm Report to Moderator

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Pic below shows sensor mount on a 2.5PI.  Welded to the chain case.  Pointer remains.  You can mount the sensor wherever you want so long ad the trigger wheel position matches it.

Nick



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Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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ahebron
November 20, 2017, 12:03am Report to Moderator


Posts: 232
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Thanks for that Nick
My trigger wheel is just larger than the harmonic balancer so I will need to move my timing pointer.
I know mounting it on the back might mean a slight amount of movement in timing but I am hoping it will be minor due to the inherent smoothness of the Triumph 6.
Anyway it has to be better than the distributor.

Adrian


Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
2003 FFRR TD6 HSE
2014 VW Amarok Highline 4Motion
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