Timing marks

We have a 1992 Peugeot Talbot Kon-tiki Swift 640 camper with the 2.5 turbodiesel engine (type U25/673, engine no 1GJ14035745). We have just removed the engine and gearbox to do the clutch and timing belt. The problem is that we have the covers off the belts and are looking at the two of them (one on the injector pump and the other behind it), but we can’t see any timing marks. I know people will tell me to just mark everything up with Tipp-ex and be really careful when removing the old belts and putting on the new ones, but I would feel a lot happier if I could line everything up with the timing marks first, then use the Tipp-ex and change the belts.

Martin Butler

I support your method – marking the pulleys is fine, but first lining up the correct timing marks is always advisable. The timing marks are located on the flywheel and on the cam pulley.

You should first ensure the engine is roughly at TDC on number one cylinder. This can be done by removing the oil filler cap and viewing the valves. You should be able to see sufficiently to work out when the valves are rocking. If you now look at the camshaft pulley, you should see a groove at the seven o’clock position. You should also see a mark on the flywheel that aligns with a mark on the gearbox bellhousing. There is also a mark on the crankshaft pulley and this should also be around the seven o’clock position. The new belt should also be marked and these should align with the grooves on the crank and cam pulleys. The distance between the two marks on the new belt should be 35 ribs.

Note that there are no marks on the injection pump pulley. In this case, I would mark it yourself.