chrishike
New Member
This has just happen to me on my sealine S23 with KAD32, exactly the same symptoms. What was the root cause did it work better after the injectors went back in I can't see what the fix was! Please let us all know.
Problem with KAD32 (no power)
- Thread starter banflu1
- Start date
banflu1
Active Member
Im so sorry I had forgotten to update the thread.
The problem was ultimately the turbo.
The original one on the boat had gone out of spec, thus the boat was starting to lose performance over the season.
What had completely boggled my mind is that after replacing the turbo with a reconditioned one, the problem remained the same (if not worse).
The injectors servicing did not make any difference, maybe just a bit less smoke on startup.
Then I took the original turbo to the same company, and they reconditioned it (sleeve and replaced the kit).
When I reinstalled it the boat few out of the water. Everything was perfect.
I could not understand why the first reconditioned turbo was not working.
After about a year I learned that when they reconditioned it they mistakenly installed a larger exhaust housing on this turbo. Apparently there’s a number of different exhaust housings that they use on the same-looking turbos. They made a mistake basically, and didn’t realize.
As a friendly note, if you’re having performance issues on your boat, the first thing to do is to physically clean the hull (even if you think it’s clean.) Clean it to make sure. Then replace air and fuel filters.
If you still have issues then you start to troubleshoot.
The problem was ultimately the turbo.
The original one on the boat had gone out of spec, thus the boat was starting to lose performance over the season.
What had completely boggled my mind is that after replacing the turbo with a reconditioned one, the problem remained the same (if not worse).
The injectors servicing did not make any difference, maybe just a bit less smoke on startup.
Then I took the original turbo to the same company, and they reconditioned it (sleeve and replaced the kit).
When I reinstalled it the boat few out of the water. Everything was perfect.
I could not understand why the first reconditioned turbo was not working.
After about a year I learned that when they reconditioned it they mistakenly installed a larger exhaust housing on this turbo. Apparently there’s a number of different exhaust housings that they use on the same-looking turbos. They made a mistake basically, and didn’t realize.
As a friendly note, if you’re having performance issues on your boat, the first thing to do is to physically clean the hull (even if you think it’s clean.) Clean it to make sure. Then replace air and fuel filters.
If you still have issues then you start to troubleshoot.
volvopaul
Well-Known Member
Sleeve insert is a bodge job , as I’ve said before I’ve seen the sleeve welding fail on 2 units refurbished by this company , one resulting in a full engine rebuild after the coolant entered the cylinders causing a hydraulic lock .
Scubadoo
Well-Known Member
What's the company name, can't seem to find it in the thread.
banflu1
Active Member
It’s surely not the same one as I’m based in Malta 
Honestly I too was very hesitant to sleeve them, however that one lasted two seasons with no problem at all then I sold my boat.
Now on my current boat I just refurbished both turbos at the same guys (also with sleeves.).
They’ve been making them for over 5 years now and they claim that not one of them failed yet. They also give a full one year warranty.
I think it all boils down to quality of workmanship.
At the end of the day the turbos on these engines are a wear and tear item And I think they should be replaced / refurbished every 5 years irrespective of performance. Especially if they’re sleeved.
Honestly I too was very hesitant to sleeve them, however that one lasted two seasons with no problem at all then I sold my boat.
Now on my current boat I just refurbished both turbos at the same guys (also with sleeves.).
They’ve been making them for over 5 years now and they claim that not one of them failed yet. They also give a full one year warranty.
I think it all boils down to quality of workmanship.
At the end of the day the turbos on these engines are a wear and tear item And I think they should be replaced / refurbished every 5 years irrespective of performance. Especially if they’re sleeved.
volvopaul
Well-Known Member
Pm sent
gromit83
New Member
SC35
Well-Known Member
A new turbo is the correct solution.
volvopaul
Well-Known Member
Or a company that fit genuine new exhaust housings not the bodge up company on the south coast .
volvopaul
Well-Known Member
Stuck or worn turbo .