landrover598 Posted December 19, 2007 Share Posted December 19, 2007 One of my jobs over xmas is to adjust the timing on my disco 200 Tdi I've been told it's a bit retarded, so how do i advance it ? An idiots guide needed please Quote Link to comment Share on other sites More sharing options...
western Posted December 19, 2007 Share Posted December 19, 2007 I've been told it's a bit retarded, so how do i advance it ? send it to school & hope it passes the exams. most likely have to get in the timing case & check the pulley alignment marks are correct. just reset as per Les H's thread here this is on a DEfender 200Tdi, but the method is the same for a Discovery 200Tdi. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted December 19, 2007 Share Posted December 19, 2007 ISTR that it was suggested that if one used a slightly smaller than 9.5mm drill bit as a timing pin in the fuel pump then one could achieve a very small amount of advance from standard - this was supposed to have some benefit... Chris Quote Link to comment Share on other sites More sharing options...
discojmz Posted December 19, 2007 Share Posted December 19, 2007 ISTR that it was suggested that if one used a slightly smaller than 9.5mm drill bit as a timing pin in the fuel pump then one could achieve a very small amount of advance from standard - this was supposed to have some benefit...Chris intriguing theory... surely if the pin was smaller, you could acheive advance or retardation... ive got to do my belt in the next few days, id be interested if there was truth in this and which way is which, not to mention how much advance is a good thing etc. Quote Link to comment Share on other sites More sharing options...
white90 Posted December 19, 2007 Share Posted December 19, 2007 Leave the Pump pinned(FIP bolts loose) and removed the flywheel pin turn the engine over with a socket on the crank pulley bolt moving the slot on the flywheel towards the offside a tiny bit at a time this will advance the timing, I did this when running on veg oil Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted December 20, 2007 Share Posted December 20, 2007 Easy peasy. Remove either the a/c idler or the plate. Loosen the 3 10mm bolts on the pulley. Turn the big nut VERY SLIGHTLY clockwise. It may not want to go depending on the position of the pulley when the belt was fitted. In the workshop we always make sure there is space to move the pulley clockwise. After fitting the belt we use a diesel sensor on the no 1 injector pipe and a normal timing light as for a petrol engine. The timing marks are on the timing case and the damper. It pays to mark them with white paint or tippex before you reassemble the engine. We then move the pulley until we get 10 deg BTDC. The setting before we start varys from 4 to about 8. The engine goes much better at 10 than at 4! Quote Link to comment Share on other sites More sharing options...
GBMUD Posted December 20, 2007 Share Posted December 20, 2007 Easy peasy. Remove either the a/c idler or the plate. Loosen the 3 10mm bolts on the pulley. Turn the big nut VERY SLIGHTLY clockwise. It may not want to go depending on the position of the pulley when the belt was fitted. Would that not retard the timing? Assuming the whole thing turns clockwise when running you would go anti-clockwise to advance - wouldn't you? The thing with the smaller timing pin is that it allows you to get the holes aligned and then to deliberately mis-align them so as to advance the timing. Only a little. Chris Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted December 20, 2007 Share Posted December 20, 2007 No, clockwise to advance, for any given point, the fuel pump will be 'ahead' a bit - so advancing the timing. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted December 20, 2007 Share Posted December 20, 2007 Ah, I misread Jim's post and imagined him turning the big nut on the crank not the one on the pump. Sorry. Chris Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.