Number of trigger teeth on 172 flywheel?

[ashy_gtt]

hello,

anyone have any idea what the standard flywheel trigger is on the 172, is it 36-1 or 60-2 or just som random configration that renault decided to use??

cheers ashy

 

[Fred@BTM]

60-2 (its 57 teeth, long one, miss long one IIRC

 

[Andy GDI]

yup.... as above...

magnetically it reads 60-2,

 

[ashy_gtt]

nice one chaps

 

[ashy_gtt]

You wouldnt happen to know what the position of the gap is BTDC aswell would you ?

 

[BenR]

approx 75 deg ATDC

 

[ashy_gtt]

Hello again,

Im really strugling to get the old girl to fire, and im wondering if it could be down to the flywheel tooth pattern.

I have attached a pic of a spare old flywheel have and you can see how i have calculated the 84 degrees BTDC to fire, however should the flywheel have a double tooth and then a double gap? I dont think the ECU will read this as a 60-2 as it more like a 57-2??

should i split the big tooth into 2 seperate teeth then remove one to leave 58 teeth and a gap of 2 teeth and 3 spaces = 15 degrees??

I just think the strange pattern might be confusing the ecu.

Cheers ashy

 

[BenR]

what ecu?

 

[ashy_gtt]

dta e48

 

[BenR]

using the stock tdc sensor pickup and position?

 

[ashy_gtt]

yes & yes m8

 

[BenR]

is the failing a trigger signal strength/reliability or position?

Have you had a timing gun on it?

Should be 60-2, and as long as you get it in the region, and have it running non advanced at 10 deg, you can dial it in on the timing gun.