Volvo variable vein cleaning

[JoeHardy93]

Hi
I have noticed a drop of power and have realised that my Turbo on my Volvo Penta D3 is not boosting.
I had assumed that my loss of power was due to the diesel bug, but I have just had the tank polished and the turbo still doesn't seem to boost like before.
I have read that the variable veins stick.
was wondering if anyone would know if Diesel big can cause this problem? Can the Turbo veins be cleaned? I have watched a view online videos of people spraying a cleaner through a air inlet pipe.
has anyone tried this with success?
Thanks.

 

[scottie]

Use of Vane in this case would make sense without being pedantic although Volvo pricing and blood sucking has been linked at times

 

[simonfraser]

see if you can scrounge some statins from your GP

 

[Freebee]

Only air is sucked through the turbo, so diesel bug has nothing to do with the turbo at all . I would take the air inlet pipe off the turbo and reach in and see if the fan (vanes) spin by hand............... if it is sticking it wont move freely.

also dont forget to use the search function there is a wealth of info on the se forums :

volvo penta d3 turbo problems

 

[JoeHardy93]

Use of Vane in this case would make sense without being pedantic although Volvo pricing and blood sucking has been linked at times

thank you. Vane it is.

see if you can scrounge some statins from your GP

Ha Ha very funny. I see my error.

 

[Frederick911]

Hi joehardy, i don’t have any experience cleaning the turbo variable vanes. But out of interest what year, HP and engine hours is your D3 ?

 

[JoeHardy93]

Hi joehardy, i don’t have any experience cleaning the turbo variable vanes. But out of interest what year, HP and engine hours is your D3 ?

Hi it's got 390 hours

 

[JoeHardy93]

Only air is sucked through the turbo, so diesel bug has nothing to do with the turbo at all . I would take the air inlet pipe off the turbo and reach in and see if the fan (vanes) spin by hand............... if it is sticking it wont move freely.

also dont forget to use the search function there is a wealth of info on the se forums :

volvo penta d3 turbo problems

Hi,
Thanks for your response. I will give that a go

 

[Frederick911]

Hi, what year and HP is the D3 ?

 

[JoeHardy93]

Hi, what year and HP is the D3 ?

It's a 2005 d3-150

 

[Momac]

 

[burgundyben]

Only air is sucked through the turbo, so diesel bug has nothing to do with the turbo at all . I would take the air inlet pipe off the turbo and reach in and see if the fan (vanes) spin by hand............... if it is sticking it wont move freely.

also dont forget to use the search function there is a wealth of info on the se forums :

volvo penta d3 turbo problems

Thats not 100% correct Mike.

Speed of the turbo and torque transfer through the turbo shaft is a function of mass flow. A lack of fuel will reduce mass flow, so slow the turbo down, thus reducing boost.

Variable vane refers not to the vanes on the wheels, but refers to the ability of the nozzle guide vanes to adjust to suit conditions. Hence spinning the shaft with your fingers does not confirm a free to operate correctly variable vane.

(You worked in filtration, I work in turbo design ?)

 

[BartW]

my Karnic has 2 x VP D3-190 2008,
a few years ago we had intermittant problems with sticking vanes,
and in my situation it was a combination of corrosion, and lack of use of the boat,
we have been able to wiggle te lever of the vanes a few times, and get them moving again,
but when the problems became more frequent we replaced both turbo's

be aware that this mechanism becomes very hot, so impossible to put grease on it..
a handy man with a lot of time might be able to take the turbo off, and make the vanes (or the mechanism) moving easyly

 

[Momac]

a handy man with a lot of time might be able to take the turbo off, and make the vanes (or the mechanism) moving easyly

Just out of curiosity .....Would the mechanism not be cleaned and made to work if the turbo was sent to a specialist for refurbishment? Or is a new turbo the cheaper option?

 

[JoeHardy93]

Thats not 100% correct Mike.

Speed of the turbo and torque transfer through the turbo shaft is a function of mass flow. A lack of fuel will reduce mass flow, so slow the turbo down, thus reducing boost.

Variable vane refers not to the vanes on the wheels, but refers to the ability of the nozzle guide vanes to adjust to suit conditions. Hence spinning the shaft with your fingers does not confirm a free to operate correctly variable vane.

(You worked in filtration, I work in turbo design ?)

my Karnic has 2 x VP D3-190 2008,
a few years ago we had intermittant problems with sticking vanes,
and in my situation it was a combination of corrosion, and lack of use of the boat,
we have been able to wiggle te lever of the vanes a few times, and get them moving again,
but when the problems became more frequent we replaced both turbo's

be aware that this mechanism becomes very hot, so impossible to put grease on it..
a handy man with a lot of time might be able to take the turbo off, and make the vanes (or the mechanism) moving easyly

Thanks for the tip on the mechanism getting very hot. I can wiggle the actuator arm which took me a while to find but it does not appear to move much,
Maybe a cm at most and springs back if I release the pressure

 

[JoeHardy93]

Just out of curiosity .....Would the mechanism not be cleaned and made to work if the turbo was sent to a specialist for refurbishment? Or is a new turbo the cheaper option?

I was quoted today just shy of £3000 for turbo and fittment (gaskets etc)
I was advised to test the actuator to ensure that it's not the fault causing the turbo not to boost correctly.

 

[JoeHardy93]

Thats not 100% correct Mike.

Speed of the turbo and torque transfer through the turbo shaft is a function of mass flow. A lack of fuel will reduce mass flow, so slow the turbo down, thus reducing boost.

Variable vane refers not to the vanes on the wheels, but refers to the ability of the nozzle guide vanes to adjust to suit conditions. Hence spinning the shaft with your fingers does not confirm a free to operate correctly variable vane.

(You worked in filtration, I work in turbo design ?)

I may try replacing the diesel filters again just in case the diesel flow is being restricted. I would like to start at the basics and move in up.
i don't suppose you know the procedure of testing the actuator? It has been suggested that it too could be the cause of incorrect boosting

 

[burgundyben]

I may try replacing the diesel filters again just in case the diesel flow is being restricted. I would like to start at the basics and move in up.
i don't suppose you know the procedure of testing the actuator? It has been suggested that it too could be the cause of incorrect boosting

No, sorry, my specific turbo knowledge is around stuff a lot bigger.

It should be fairly obvious if the actuator is stuck I'd have thought.

 

[Freebee]

trying to be a bit more helpful than last time did you google and find this : VNT15-Turbo

shows everything in detail including the actuated movement of the vanes , it looks like the actuator is vacuum operated so by application of a vacuum you should be able to see movement.

 

[BartW]

Just out of curiosity .....Would the mechanism not be cleaned and made to work if the turbo was sent to a specialist for refurbishment? Or is a new turbo the cheaper option?

I think what you sugest is possible, but in UK you have many more specialists around, who could take the turbo's apart, (compared to here in Belgium..).
I had the boat at the official Volvo Penta service point, and they sugested that replacing was our best and only reliable option. (after a few attempts to make the old turbo's work )
and I didn't have time (nor will) to do further investigation, and just bite the bullet...