Doverescape
Cadet
- Joined
- Feb 1, 2021
- Messages
- 6
Good Day to you all or evening depending on time zones.
I have a Sealine S23 (British boat) with a Volvo Penta KAD32 DP Duo Props.
According to the manual max RPM should be 3900 and top speed around 30 knots
As you can see when I pull away at WOT I get the following residue left in the wake.
It has always had problems and I have recently had an air leak identified from supercharger to turbo and in fairness have not really had a chance to give it a good thrashing (Chinese service) since so am not sure if I have a huge build up of unburnt diesel that will take a while to clear but am doubtful.
I have been getting a max speed of about 22knots and only when the water is as flat as a Witches *** and a max RPM of around 3200
List of what I already done.
New props (A4'S)
Injectors overhauled
New fuel and air filters
New speed sensor
Turbo overhauled
Clean bottom etc
Tappet clearances checked and good at 0.40mm
Intercooler cleaned
Throttle linkage checked to see that I am getting full throttle.
Not had compression tested but it starts on the button and ticks over very well so pretty sure they are ok.
I am pretty sure that I have come a bit obsessed with this but feel that there is something that is just not quite right. It used to struggle to get one the plane prior to air leak but now pops up like a cork.
As you can see from the pictures I would probably get arrested for water pollution if anyone saw this so I am wondering if anyone can offer me any light inspiration.
Regards
Steve
I have a Sealine S23 (British boat) with a Volvo Penta KAD32 DP Duo Props.
According to the manual max RPM should be 3900 and top speed around 30 knots
As you can see when I pull away at WOT I get the following residue left in the wake.
It has always had problems and I have recently had an air leak identified from supercharger to turbo and in fairness have not really had a chance to give it a good thrashing (Chinese service) since so am not sure if I have a huge build up of unburnt diesel that will take a while to clear but am doubtful.
I have been getting a max speed of about 22knots and only when the water is as flat as a Witches *** and a max RPM of around 3200
List of what I already done.
New props (A4'S)
Injectors overhauled
New fuel and air filters
New speed sensor
Turbo overhauled
Clean bottom etc
Tappet clearances checked and good at 0.40mm
Intercooler cleaned
Throttle linkage checked to see that I am getting full throttle.
Not had compression tested but it starts on the button and ticks over very well so pretty sure they are ok.
I am pretty sure that I have come a bit obsessed with this but feel that there is something that is just not quite right. It used to struggle to get one the plane prior to air leak but now pops up like a cork.
As you can see from the pictures I would probably get arrested for water pollution if anyone saw this so I am wondering if anyone can offer me any light inspiration.
Regards
Steve