Static Engine Timing

[Gavin Waddell 18]

Now i am have problems with my antipolluton test for the mot( i live in switzerland). Took the car to a mates garage and checked the emissions and well the co was fine but the HC was off the scale at 800 -1100 im allowed 400 max and when i did witht the 1.6 i had 249HC. My mate ask if it was timed up and well i just i just timed it up with the timing holes and not with the flywheel, i was wondering if it could be timed wrong and there is poor combustion at low revs so i want to time it statically then strobe it. But have a few queries. thw engine is a mismatch of uk and european spec 1.9 gtis here goes.......

 

basically i have a rebuilt 1.9 it was a europeanm dkz wich has less bhp and torque and a lower compression ratio than the uk d6b engine, i got a uk spec camshaft from a d6b which has more bhp and more torque and a higher compreasson ratio akso skimmed the head to up the compression bit.i also got the afm and ecu that goes with the camshaft so it would all run smoothly, the dkz engine used monotronic 3.1 i think, so swapped over and used a dizzy from my 1.6 which i had taken out of the car ealier, that way i could advace and retard the engine manulally Now when i rebuilt it i used the flywheel from the dkz so it has no timing marks because it is electronicaly co trooled by the ecu, but wanted to run the crank,pitons,etc all from the same engine so everything twould be all balanced properly.

 

Now to the timing question. Because a have the flywheel with no timing marks i cant time the engine, so i wanted to know if i could run a flywheel form a B6d 1.6 gti engine, which has 10 degrees at 900 rpm, which i also have the plate with thi timing marks. I ask because the D6b 1.9 gti engine runs 5 degrees at 700rpm (haynes book of lies) or would i be in the same position as with the dkz flywheel?

 

If that makes sense does any one have a thought

 

THanks Gavin

[lagonda 42]

My understanding is that the best way to set the timing on these is to advance the distributor until the engine "pinks", then back it off gradually until it stops pinking...& that is your optimum ignition timing! Obviously ensure the car is fully warmed up beforehand...also a good idea to mark the distributor flange and mounting flange so that you have a known starting point. Also a good idea, once you've got it pinking, to mark that point on the distributor flange in line with your original mounting flange mark...then make a scale of marks between that & your original distributor flange mark. Then you can retard the timing in increments, & know where you've got to...otherwise it's easy to lose track of where you've got when re-setting it.

Laurence