Hi
First time poster hoping t
Hi
First time poster hoping that someone can offer advise. My 2003 KAD300 with EDC on 800 hours has just started to exhibit a problem. Supercharger kicks in at 1500 rpm as normal and kicks out at 2700 rpm. However turbo does not seem to kick so revs drop so supercharger kicks back in and this cycle keeps repeating. However once over approx. 2900rpm turbo seems to respond normally. No smoke.
Turbo pressure gauge has never worked properly so not sure of boost pressure.
I'm not sure its coincidence or a symptom of the underlying cause but I've also noticed that the engine will not rev out beyond 3600rpm in light trim whereas historically it revved to 3850rpm. Bottom is pretty clean.
Any advise or assitance would be greatly appreciated.
regards
Steve
First time poster hoping t
Hi
First time poster hoping that someone can offer advise. My 2003 KAD300 with EDC on 800 hours has just started to exhibit a problem. Supercharger kicks in at 1500 rpm as normal and kicks out at 2700 rpm. However turbo does not seem to kick so revs drop so supercharger kicks back in and this cycle keeps repeating. However once over approx. 2900rpm turbo seems to respond normally. No smoke.
Turbo pressure gauge has never worked properly so not sure of boost pressure.
I'm not sure its coincidence or a symptom of the underlying cause but I've also noticed that the engine will not rev out beyond 3600rpm in light trim whereas historically it revved to 3850rpm. Bottom is pretty clean.
Any advise or assitance would be greatly appreciated.
regards
Steve