TUD5 timing belt

[JohnD]

For a cold start, the engine speed is too low. Maybe the fast idle thermo valve needs checking. Also I'd want to check that all four glowplugs are working.

[Jonathancilia]

The car in the video is not mine but mine idles with the same speed all the time around 850 rpm, pump doesnt have a fast idle cable, the waxstat on thermostat housing is blanked off. On the saxerience forum i have been told that this is normal and this engine doesnt need a waxstat

[Jonathancilia]

I replaced four glowplugs 2 weeks ago, because i found two of the old ones were faulty, they were all working i checked them out of curiosity when new

[wheeler]

Before you tensioned the new belt did you slacken off the bolts on the pump & camshaft pulleys (if fitted)? If you dont slacken them to allow them to ‘float’ you can actually knock the timing out when you tension the belt.

[JohnD]

mine idles with the same speed all the time around 850 rpm, pump doesnt have a fast idle cable, the waxstat on thermostat housing is blanked off.

Maybe someone has fitted a different fuel pump. Saxo's can be fitted with either a Lucas pump or a Bosch but both have fast idle cables giving a fast idle speed setting of 1050rpm. Normal idle speed drops to 825rpm. My Saxo is fitted with a Lucas pump and the fast idle cable is marked with the arrow.

[Jonathancilia]

I did it! My own mistake, i bitten the bullet and disassembled everything again, pump was retarded, now i put everything back together and all the vernier bolts are in the centre of their holes. It runs sweet as a nut and no more smoke. Im a happpy guy, learnt alot from my mistake here. Thanks alot for the help guys you are awesome

[moizeau]

Well done, happy days. It's very easy to be 1/2 a tooth out on the pump and then it's a guess which to go. I mentioned earlier but on an IDI I always mark the old belt and pulleys with a white paint pen then transpose the marks onto the new belt. This way you know you've got the correct number of teeth between the cam, crank and fuel pump.

[Jonathancilia]

Next time ill be more careful, this was my first time doing a timing belt on a diesel engine, its abit different than petrol engine, i was worried that i broke something when i saw the smoke but endee being something simple

[CitroJim]

Excellent result

[JohnD]

Yes - well done, but still a puzzle as to why your pump doesn't have a fast-idle lever

[Jonathancilia]

Yes i cant work out that, on the saxo forum i have been told that the bosch pump is normal for it to dont have the fast idle cable. Infact the waxstat is blocked off on many engines, i went to adjust it ince only to find no cable

[Jonathancilia]

Cant be thankful enough for this forum, i always find awesome people who give very good help and fast replies

[Jonathancilia]

I have been told that bosch pump dont have a fast idle cable from factory, only lucas ones have, i would like to have abit of a higher idle when cold but i think irs not possible to fit because its blocked off. Anyway this engine doesnt have any problem when cold its very low mileage, only 109k kilometres. And solid compression, starts instantly when i turn key from cold.

[JohnD]

I have been told that bosch pump dont have a fast idle cable from factory, only lucas ones have,

As I said, I don't have a Bosch pump. Mine is the Lucas. However, the manual for the Saxo clearly shows a photo of the Bosch (with its fast-idle cable) and a description of how to adjust the fast-idle.

[Jonathancilia]

Youre right on that one ! Thats why im lost on this one. Because on my haynes clearly says that its supposed to have a cable