VP D4 260 spinning the Turbo

[kennyh]

I previously posted that my turbo was sticking and I managed to free it a bit.

I plan on taking a power drill/screwdriver and continue to spin the turbo to further loose any corrosion jamming it.

Q: can I simply use the hex head (shown with blue arrow below) on the exposed turbo shaft to turn the blades - or is there a chance I would loosen the shaft retaining bolts and risk the blade/shaft disassembling?

 

[DavidJ]

I just used an electrical screwdriver (that sort of size) and just scraped it around where the rotor goes. I take it your rotor will move although just a bit stuck. Don’t put any pressure on the rotor or you might deform it. When you can achieve a couple of free spins, job done

 

[Calum Blackwood]

You could just take the turbine out and clean properly. Failing that run some mr muscle through it (not whilst running engine)

 

[kennyh]

It spins mostly without any jams - but there is a bit of friction for about 1/4 of the turn.

Someone suggested spinning it with a drill to clear off any remaining corrosion, which I assume is in the body of the turbo housing.

 

[SC35]

I wouldn't be worried about the nut.
But I would be a bit worried about damaging the vanes if too much force is needed.

 

[kennyh]

I wouldn't be worried about the nut.
But I would be a bit worried about damaging the vanes if too much force is needed.

Thankfully not much force is needed to get past the friction.

 

[kennyh]

Final question…anyone know the direction of rotation of the turbo when viewed from the exhaust elbow side…. Is it clockwise or counterclockwise?

 

[spannerman]

Counterclockwise

 

[SimpleSailor]

You could just take the turbine out and clean properly. Failing that run some mr muscle through it (not whilst running engine)

+1 do it properly and don't risk damage to the vanes.

 

[kennyh]

UPDATE: Spun the turbine with an electric drill. 99% freer spinning.

Took out for test - all good. Then did 2hr at cruising speed and some WOT. Issue fixed and I expect it shouldn’t reoccur this season.

Likely I’ll strip at winter and get it refurbished.

Thanks all for your input.