auszookers.com
https://auszookers.com/forum/

Ignition timing on sierra.
https://auszookers.com/forum/viewtopic.php?f=5&t=10420
Page 1 of 1

Author:  Built4thrashing [ Sun Mar 14, 2010 1:42 pm ]
Post subject:  Ignition timing on sierra.

Just curious. but how far out would the timing be if the timing belt was out by one tooth.
I need to set my timing at 2deg and even then it still pings on shitty fuel.
We rebuilt the engine a while back using parts from both 1298 and 1324cc motors and it has higher compression than normal.plus with the ground cam its quite gutless untill the revs get over 4000rpm. Fuel economy sux too coz of this.

sierra....31tyres. S3 t/case, 3.9 diffs, ruf and 2in BL


thanx

B4T

Author:  Scrawny [ Sun Mar 14, 2010 1:45 pm ]
Post subject:  Re: Ignition timing on sierra.

Have you tried it on Premium?

Author:  want33s [ Sun Mar 14, 2010 2:01 pm ]
Post subject:  Re: Ignition timing on sierra.

Count the teeth on the top pulley.
Divide 360 by whatever number of teeth is.... This will give degrees of cam revolution per tooth.
Distributor turns 1:1 with camshaft.

Author:  oozuk [ Sun Mar 14, 2010 2:52 pm ]
Post subject:  Re: Ignition timing on sierra.

have you checked to see if your cam timing is correct first ?

low power, high fuel usage and pinging a symptoms of an incorrectly timed cam timing (timing belt)

Author:  jonno_racing [ Sun Mar 14, 2010 3:04 pm ]
Post subject:  Re: Ignition timing on sierra.

or as my case was... key way on crank was cut incoretly.. and about 8' out.. same symptoms as what u are saying.

Author:  Built4thrashing [ Sun Mar 14, 2010 11:29 pm ]
Post subject:  Re: Ignition timing on sierra.

without pulling things apart im guessing the cam is out by a tooth. gives the symptoms of being out of mechanical timing.

B4T

Page 1 of 1 All times are UTC + 9:30 hours
Powered by phpBB® Forum Software © phpBB Group
https://www.phpbb.com/