Timing 1.8 k series - Page 3

minimutly · 1st May 2017, 20:05

Well I had to check...
At exactly level pistons the bottom toothed pulley can either be bang on between the dots (if moved forward to the extreme of its slop), or, if you turn it back to the other extreme just slightly off middle. So Brian is right, or at least partly right, depending where exactly the pulley sits.
Now, given it will allways be driven, it will allways be back, which means the No1 piston will be slightly higher up the bore. I tried to measure it - around 2.5mm higher than No2. This is no accident in my opinion, (its the mark on the pump thats just before 12o'clock), and I believe its there to allow some slack to fit the belt when the dots are exactly aligned. At any rate, pistons level will still allways be with the dots either side of the line on the pump, which is good since thats all I've ever used, usually with a quick glance down once the belt is on, grovelling around under the wheelarch is for idiots as far as I'm concerned.
Good spot though

1st May 2017, 20:05	#21
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	Well I had to check... At exactly level pistons the bottom toothed pulley can either be bang on between the dots (if moved forward to the extreme of its slop), or, if you turn it back to the other extreme just slightly off middle. So Brian is right, or at least partly right, depending where exactly the pulley sits. Now, given it will allways be driven, it will allways be back, which means the No1 piston will be slightly higher up the bore. I tried to measure it - around 2.5mm higher than No2. This is no accident in my opinion, (its the mark on the pump thats just before 12o'clock), and I believe its there to allow some slack to fit the belt when the dots are exactly aligned. At any rate, pistons level will still allways be with the dots either side of the line on the pump, which is good since thats all I've ever used, usually with a quick glance down once the belt is on, grovelling around under the wheelarch is for idiots as far as I'm concerned. Good spot though