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Home > Help Needed / General Tech Chat > What is the Direction of rotation on the A series?

Rod S

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On 14th Jul, 2011 ciaran said:
Surely the engine would not run being so far out??


Well it depends on what you are allowed to set in the canems software...... you imply you have a clockwise/anticlockwise choice (even though the engine runs one way) but do you actually mean you can set the figure to something other than 90 degrees BTDC no matter how bad this is for CPU process time ???

If you look at my MS example I can adjust the 90 degree setting in the software in case the trigger wheel wasn't mounted at exactly 90 degrees but I would aim to be very close to 90 degrees BTDC because that's how the MS2 CPU works.


If you have your trigger wheel physically at 50 degrees AFTER TDC (ATDC) I would phone canems and ask them why they welded it that way ???

In fact I would ask them why they welded it... it destroys the rubber in the harmonic damper and doesn't allow any adjustment. Mine are both one with three setscrews so I can adjust it mechanically to exactly 90 degrees.

Schrödinger's cat - so which one am I ???


ciaran

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It may be machined into the pulley, I didnt pay too much attention to the construction of it, although, it would make more sense to mount it on the inside then I dont have to remove the Crank sensor to replace drive belts. But thats neither here nor there, I dont think the canems software works like MS. I was out there at the car, set the software to 50 Deg Before sensor with the advance set to 0. Engine fired up, and strobe light indicated that its spot on, mark on pulley lines up with the First tooth.
When I start adding Static advance is where the issues are, I entered 8 Deg at idle, which seems to be the norm for my set up, and it didnt work.
Why there is an advance option I dont know, surely youd just check on a strobe and add an extra 8 degrees to the 50 I entered? (BTW when I do that the pointer moves back behind the timing scale?).

It all seems like a load of shite, and Ive probably Fucked the engine up by now with it running arseways.

Edited by ciaran on 14th Jul, 2011.


ciaran

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I have figured it out, the correct direction on the software is Anti Clockwise, even though the Engine Turns Clockwise. Because of where the sensors location is in the software.
Pretty much whats happening is the same as If you look at a clock from the back. The canems software has the sensor at 3 O clock looking from the clutch end of the car, for it to work clockwise in the software it would need to be at 9 o clock. Sorry if its a confusing explaination.

I set it to 52 Deg Static and 8 Deg Advange and the 8 Deg Advance is verified on the strobe light. Happy days.

Now its misfiring when its both under load and the throttle is pressed, Im thinking it could be a fuelling issue as I ran of of petrol last week and after the symptoms developed, however only after a few days and got progressivly worse. Could it be dirty injectors?

Edited by ciaran on 14th Jul, 2011.


Rod S

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So if you are setting the software to 50 degrees (which is what you are physically measuring) I don't understand where this clockwise/anticlockwise comes from ???

The normal process is just to get the trigger wheel about right (normally 90 BTDC) and then set the actual value in the software, no clockwise/anticlockwise stuff.

Can you post up a screenshot of the page in the software where you set clockwise/anticlock wise - just to help understand why they want that info.

Schrödinger's cat - so which one am I ???


ciaran

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Yea sure ill stick one up now :)


ciaran

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Thats what the timing is set at on the ECU. Unlike MS I dont think the missing tooth must be at 90 degrees.

What Im getting at is the sensor is 3 o clock in that software, however thats looking at the pulley from the clutch end.

Look at it from the rad end and its at 9 o clock.

Edited by ciaran on 14th Jul, 2011.


Tom Fenton
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So your sensor is at 9 o clock looking at the crank pulley.

Therefore the sensor is already at 90 deg before TDC if you assume TDC is 12 o clock. Thus I know from experience that your missing slot needs to be aligned with the keyway in the crankshaft.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂


ciaran

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Is the Key on the crank 90 BTDC? The timing is 8 deg adv at idle which Im happy with.
Next job is to sort this misfire, which at this stage im not really arsed doing. The car has sapped my enthusiasm, hasnt run right in a year at this stage.


Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

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No. The bracket is at 90 deg before. So put the missing notch at TDC aligned with keyway.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂

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