Volvo Penta DP-H steering hydraulic Hose Replacement

[Stampede]

Hi Guys,

I have twin Volvo Penta Dp-h outdrives fitted to a D4 engine . The boat is out of the water and one of the hydraulic hoses on the steering ran on the starboard side, has come away from the manifold it’s connected leaking fluid .

I have taken the 2 Allen key screws out of the manifold it’s connected to , but the manifold will not budge. I have seen in previous posts that the manifold is suppose to slip down when the screws are removed .

It looks very corroded, and I want to replace it .

Any suggestions on how to take it out.

Thanks in advance

 

[spannerman]

If you still have the other 3 hoses connected you could try twisting it back and forth with a screwdriver between 2 of the pipes. There is nothing else holding it in other than the corrosion you mentioned.

 

[Stampede]

Thanks spannerman. I will try that tomorrow

 

[Stampede]

Hi Spannerman

I have tried to move it , but no budge . The 2 rear hoses came away by hand due to the corrosion.
If I take the front 2 hoses off is it possible to chip away at the manifold until it’s free. Just nervous in case I do any damage

 

[spannerman]

It just sits in a hole with four ports that line up with the hoses, you could try to tap it with a punch near the edge and try to get it to rotate in either direction, never seen this problem before.

 

[Stampede]

It just sits in a hole with four ports that line up with the hoses, you could try to tap it with a punch near the edge and try to get it to rotate in either direction, never seen this problem before.

Ok. I will try that over the weekend

 

[Stampede]

Thanks for the help Spannerman

I eventually got it out . It’s fairly corroded.

I am going to attached new hoses and I was wondering to I need to put a sealer on the 4 hose connections that sit into the manifold

 

[spannerman]

You need to fit 4 new O rings which sit between the transom and the round fitting. The hose unions need to be tight as they can leak and you will need a crowsfoot spanner to tighten them once the fitting is in place. I always fit the 4 hoses to the fitting with it in a vice and make sure the angle is right or you will struggle to get the hoses to match up with the cylinders.

 

[Stampede]

Thanks again for the advise .