Hi,
Perhaps I'm stupid, but I just want to make sure I've done everything right with regards to mounting the wheel and the sensor on my Triumph GT6. I've read the instructions and i think I've done it right but I'd like someone to confirm it for me.
With my engine at TDC I have the middle of the missing tooth at 60 degrees BTDC (6 cylinder) lined up with the sensor. Is this correct or should the missing tooth be at TDC with the sensor at 60 BTDC?
Sorry if this is a dumb question but I've read and re read the instructions and have just ended up confusing myself!
Rgds,
Robert Proud
Sensor positioning (again!)
Moderators: JeffC, rdoherty, stieg, brentp
I'm sure you've seen my write
I'm sure you've seen my writeup on this already:
http://picasso.org/mjlj/?q=node/view/2
It can be tricky to visualize. However, what matters is that the sensor is XX degrees before the missing tooth, *when* the crank is at TDC. Make sense? it doesn't really matter where the missing tooth is- as long as the sensor is XX degrees before the missing tooth, and the crank is at TDC.
So in your case you'd want your crank at TDC, then find a convenient location to mount your sensor, and finally mount the wheel so the missing tooth is 60 degrees before the sensor location- in relation to the direction the engine turns.
Hope this helps,
Brent
http://picasso.org/mjlj/?q=node/view/2
It can be tricky to visualize. However, what matters is that the sensor is XX degrees before the missing tooth, *when* the crank is at TDC. Make sense? it doesn't really matter where the missing tooth is- as long as the sensor is XX degrees before the missing tooth, and the crank is at TDC.
So in your case you'd want your crank at TDC, then find a convenient location to mount your sensor, and finally mount the wheel so the missing tooth is 60 degrees before the sensor location- in relation to the direction the engine turns.
Hope this helps,
Brent
crank sensor mounting again
Yeah I had seen your write up. Looks like I've done it wrong. I think Its wrong because I originally set it up for use with a megasquirt and EDIS setup and those instructions appear to be different regarding how you setup the trigger wheel. Anyway, guess it's out with the angle grinder!
Thanks for finally clearing it up for me.
Robert Proud
Thanks for finally clearing it up for me.
Robert Proud
Missing tooth 90 degrees before sensor location
Brent: I know this must have been discussed many times but is still confusing me.Here is the paste of your comments.
For example, for an EDIS-4 application, with the engine at TDC, if the missing tooth is aligned with TDC (pointing up, or aligned with the crank pulley key), the sensor should be aligned with the center of the tooth 90 degrees BTDC. If this was a typical clockwise rotating engine, the sensor would be positioned 90 degrees to the left side of the crank sensor (9 o'clock position), when viewed facing the crank.
In the example you describe what I don't understand is putting the sensor at the 9 o'clock position. Isn't that after TDC with a clockwise engine? I would think it would be at the 3 o'clock position.
Sorry for being so dumb
Ron Triano
For example, for an EDIS-4 application, with the engine at TDC, if the missing tooth is aligned with TDC (pointing up, or aligned with the crank pulley key), the sensor should be aligned with the center of the tooth 90 degrees BTDC. If this was a typical clockwise rotating engine, the sensor would be positioned 90 degrees to the left side of the crank sensor (9 o'clock position), when viewed facing the crank.
In the example you describe what I don't understand is putting the sensor at the 9 o'clock position. Isn't that after TDC with a clockwise engine? I would think it would be at the 3 o'clock position.
Sorry for being so dumb
Ron Triano
I know, it's tricky to visual
I know, it's tricky to visualize.
Imagine the engine turning clockwise. Imagine following a point on that timing wheel as it turns. When that point is at the 9 o'clock position, it is 90 degrees away from reaching TDC...
Did that help?
Brent
Imagine the engine turning clockwise. Imagine following a point on that timing wheel as it turns. When that point is at the 9 o'clock position, it is 90 degrees away from reaching TDC...
Did that help?
Brent
It's tricky
Still confused. If the engine is at TDC #1, and the mark is straight up, Do you mean the trigger wheel missing tooth should be at 9 o'clock and 90 degrees away from the TDC mark?, With the engine turning clockwize isn't the 9 o'clock position ATDC? That's why I thought it should be at the 3 o'clock position and BTDC.
I am very sorry, maybe I can't see the forest for the trees.
Ron Triano
I am very sorry, maybe I can't see the forest for the trees.
Ron Triano