Hi, i realise this may sound stuid, and i have done it before, just cant remember how to now! I am installing a MJLJ on to a 306 GTi6 engine, (4 cylinder). My problem is that in the instalation guide in this site, it quotes that: "With angine at TDC on cylinder 1, the sensor should be mounted 90 degrees AFTER missing tooth", but the diagram shows the sensor 90 degrees BEFORE the missing tooth. Now am i being stupid or do the two things contradict each other?
Many thanks,
Matt
trigger wheel/sensor.
Moderators: JeffC, rdoherty, stieg, brentp
Hi Matt
How's it going with the new motor?
I think they're both correct
- If nothing is moving, the sensor is 90 degrees before the missing tooth.
- If the engine is rotating, the sensor is at the tooth that is 90 degrees after the missing tooth has gone past.
I find the diagram easier to follow.
If you get it wrong, all you will get is the sparks 180 degrees out from where they should be and all you then need to do is swap the coil primaries (pins 10 and 12) over
Cheers
Martin
How's it going with the new motor?
I think they're both correct
- If nothing is moving, the sensor is 90 degrees before the missing tooth.
- If the engine is rotating, the sensor is at the tooth that is 90 degrees after the missing tooth has gone past.
I find the diagram easier to follow.
If you get it wrong, all you will get is the sparks 180 degrees out from where they should be and all you then need to do is swap the coil primaries (pins 10 and 12) over
Cheers
Martin
Oh boy... define "After" 
I agree with Matt, it is confusing. The sensor installation is often a mind-bender for people, and somewhat hard to describe in words.
I updated the text in an attempt to clarify the process. Please provide some feedback for clarity - and accuracy!
http://www.autosportlabs.net/MJLJ_V4_ve ... stallation
I also added a more 'cookbook' procedure for making the alignment more fool-proof.
Thanks,
I agree with Matt, it is confusing. The sensor installation is often a mind-bender for people, and somewhat hard to describe in words.
I updated the text in an attempt to clarify the process. Please provide some feedback for clarity - and accuracy!
http://www.autosportlabs.net/MJLJ_V4_ve ... stallation
I also added a more 'cookbook' procedure for making the alignment more fool-proof.
Thanks,
trigger wheel
Hi, thanks for the replies, and thanks for editing the text!!
MartinM: Its all go at the moment thanks, having a alloy crank pully machined tomorrow eve to accept the trigger wheel, so needed to get it sorted, thanks for that. I will send you a few photos, or pop round for the cup of tea when it is finished!
All the best
Matt
MartinM: Its all go at the moment thanks, having a alloy crank pully machined tomorrow eve to accept the trigger wheel, so needed to get it sorted, thanks for that. I will send you a few photos, or pop round for the cup of tea when it is finished!
All the best
Matt