Rotax 582 hose replacement

[amekler 1]

Just bought a Mark IV with a 582

I’d like to replace all the hoses as I don’t know when and if they were ever changed

does any one have a list of what is needed

do people use rotax hoses or automotive hoses

any help appreciated 

Alan

[ChrisBolkan 152]

Look the hoses over VERY closely. If they are still flexible and don't look or feel cracked, stiff, brittle or burned from exhaust, I would use as-is. 

The 582 RV oil circuit uses a (I think) 10mm hose that has cloth braid on the outside. it is very light and flexible hose that I could not find locally. That is really the only hose I have ever bought specific to the 582 from Lockwood. For all water hoses I either bough pre-formed hoses and cut the portion out that fit the particular profile I needed or used hose on a roll for longer straight pieces. I got the water hose from local parts shops that would let me look through all of their hoses. 

When I plumbed my 912, I bought the metric oil hose from Lockwood and did the same thing with auto hoses for the rest of the engine. The 912 was more complicated so I made a drawing of the hoses and wrote the gates part number that I cut each hose from I used in a particular location. Occasionally I got lucky and one hose with multiple bends could be cut and used in more than one location. If I ever need to replace the hoses I have references to the part numbers of the hoses I used for a particular spot.

There are probably better ways to do it but this is what I have done.

Edited 2 Jun 2025 by ChrisBolkan

[nlappos 427]

I redid all my water hoses, used this stuff, it is 6-7 years old, looks brand new. Amazon:

HPS 1" ID Black high temp reinforced silicone heater hose 10 feet roll, Max Working Pressure 50 psi, Max Temperature Rating: 350F, Bend Radius: 4.5"

Edited 4 Jun 2025 by nlappos
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