I have a 1990 Mazda 626 and have put in a naturally asperated engine of the same year. 2.0l. 4 things worst first.
1. embarrassing lots of grey smoke. Clean paper held over exhaust for about a minute reveals droplets of moisture only no black carbon. moisture dries to nothing. Engine is warm (fan comes on).
2. Hard to start when cold. I get it going with aerostart. restarts OK when warm
3. when returning to idle after reving, stalls but will restart.
4 idle screw wound right in to achieve idle.
injectors have been swapped with old motor (3 out 0f 4) injectors changed if carbon pattern around nozzle was irregular. Best pattern was small circle of carbonaround nozzle diameter about 3mm
Any advice out there? I'm happy to get someone to look at it but I don't know who to go to and who to trust in SA.
1. embarrassing lots of grey smoke. Clean paper held over exhaust for about a minute reveals droplets of moisture only no black carbon. moisture dries to nothing. Engine is warm (fan comes on).
2. Hard to start when cold. I get it going with aerostart. restarts OK when warm
3. when returning to idle after reving, stalls but will restart.
4 idle screw wound right in to achieve idle.
injectors have been swapped with old motor (3 out 0f 4) injectors changed if carbon pattern around nozzle was irregular. Best pattern was small circle of carbonaround nozzle diameter about 3mm
Any advice out there? I'm happy to get someone to look at it but I don't know who to go to and who to trust in SA.
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