Goodyear 1978 Peugeot 504 Accessory Drive Belt "firing order 6 gas engine" Questions

...want to find the firing order 1978 peugeot 504 car Hi, the firing order is 1342 on the 1.8 and 2.0 engines. If your car is the 2.7, the firing order is 1-6-3-5-2-4 See attached image for the 2.7 ...