Samco Hoses

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Holaday, Oct 25, 2010.

  1. EastSideSM

    EastSideSM Isn't that dangerous?

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    I installed the Silicon hoses about 2 years ago. I also installed a new thermostat and upgraded fan switch this year. I did notice a bit of difference with just the hoses, but that was probably due to not leaking coolant anymore. I noticed more of a difference with the upgraded fan switch/new thermostat. I think that you will see more of an improvement in heat management if the hoses were intstalled with the fan switch as opposed to hoping for a noticeable difference with just the hoses. I ended up getting the Motion Pro crimpers.
    #41
  2. Nailhead

    Nailhead Free at last!

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    A lot of talk about leaking hoses, and these hoses are supposed to be trick?

    I'm not seeing it, I guess. :huh
    #42
  3. Katoom119

    Katoom119 Mmmm....Orange Kool-aid

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    Take the "not" out and it makes sense.

    It's called heat soak. Basically what is happening is that the heat is transferred from the engine to the radiator fluid, then goes to the radiator to be cooled. Well, the stock rubber hoses don't keep the heat in the hoses but lets it seep out into the engine compartment. So now you're running an engine in an oven, essentially. Because of this the radiator has to work even harder to cool the engine.

    Put on the thicker Samco hoses and no heat is allowed to seep through the hoses into the engine compartment; the only place the heat is allowed to dissipate is at the radiator. Since the engine is now not-in-an-oven, it runs cooler, simply because there's not so much damn heat in the compartment. This lets the radiator run more efficiently and actually cool the engine, not the entire engine compartment.

    Think of it like this: it's 95* outside and you have every window and door in the house open. A/C is going nuts, right? Can't cool the house no matter how hard you run the A/C unit. Close the doors and windows (I.e., change the hoses) and now you have better insulated the house (engine). So now when the A/C unit (radiator) cools the house, it actually works.
    #43
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  4. grinns

    grinns Semper Fi

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    I had similar problems. Used a radiator pressure tester to find any leaks.

    #44
  5. kamanya

    kamanya Andrew to most

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    The hoses don't leak, it's the connections that do. Mostly I feel because the clamps are the issue; not knowing how tight is tight, not having the correct clamp tool and lastly, some of the hoses need trimming which causes the joins to be under bending loads.

    If I remember right, the instructions don't address any of these things.
    #45
  6. Nailhead

    Nailhead Free at last!

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    That would make sense to me if the radiator wasn't exhausting its added heat onto the engine and into the area those hoses ostensibly are isolating their heat from.

    Whatever-- they look kind of cool.
    #46
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  7. APA

    APA Supermoto - Steve

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    FYI .... KTM's come stock with the silicone hose clamps....so no need to purchase them unless they get damaged.

    www.MotoHose.com sells the clamps for $1.95 :clap cheaper that what KTM sells them for.
    #47
  8. Orangecicle

    Orangecicle On a "Quest"

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    I put on Samco hoses this year. I like them so far. It took some cutting on two of the hoses to make them fit.
    #48
  9. ktmadv1

    ktmadv1 KTMtwins

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    Just a heads up: Samco will not warranty their hose kits unless you buy their clamp kit when you buy the hoses.
    #49
  10. kingoftwins

    kingoftwins Adventurer

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    In other words. We had offered a stepless hose clamp kit a while ago and it fit nicely both with installation and with durability. Unfortunately for some reason Samco then announced their hose kits would no longer be warrantied if you didn't use their hose clamp kit. The downfall with their hose kits unlike their top of the line hoses is the clamps are from the automotive side of things and not for motorcycles. This causes certain frustrations with installation because of size limitations and we all know that just like the auto world, motorcycles aren't getting any easier to work on but harder with every new year. They're simply isn't much space to get in there and mount an over-sized automotive hose clamp. We haven't had a single Samco Hose fail in all the years that we have been selling their line of products which shows their build quality with their hoses. KTM is using Samco on all their race efforts. That should tell you something. It's up to you on whether you choose to use their clamp kit that comes with the hoses or purchase the OEM Stepless units from the microfiche section. I hope that helps and clears up some things about Samco.
    #50
  11. ABuck99

    ABuck99 0.0

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    #51
  12. mattscott

    mattscott Been here awhile

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    I just read this thread, how are these holding up for people? I have my 950 apart and I'm doing a full refurbishment on it. Might do this while I'm in there, but as the stock hoses only have 30K on them and appear in good shape, I'm not sure.

    The concept of lowering engine temps and engine 'compartment' temps is appealing, what does everyone think of that?
    #52
  13. veetwo _tls

    veetwo _tls RENOVATIO:

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    have them on 5 bikes never had a problem
    #53
  14. speedy 1

    speedy 1 Wizard

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    Did they lower the engine room temp ? Really didn't notice that effect.
    Silicone resists oil better. If the water pump seal fails (again) and leaks oil into the water the hose won't soften or bulge.
    Leaks ... Pinch clamp (Oetiker brand) works fine on the hose to metal connections but leaked on the plastic thermostat connections.
    I had to change to a worm clamp to stop the leak. Use a solid band type not a perforated style. The perforated style can cut the hose.
    ABA or Norma brand clamps are less likely to cut the hose.
    #54
  15. Mane

    Mane Been here awhile

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    Great timing of this thread..

    I'm looking to get a set of silicon hoses (Samco or other), my current OEM hoses started looking sad and some junk is appearing at the bottom of the coolant reservoir.

    I remember reading about what pain in the ass is to replace these hoses, particularly some small segment. Is this true? How so? Any tips?

    Regards,
    Mane
    #55
  16. chevtech

    chevtech Been here awhile

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    Anywhere you dump heat including heat dissapation from the hoses, should drop engine operating temps. If these hoses insulate more, if anything they would increase engine temps. Just my opinion.

    I still want a set. Silicone ~ whatever is the shit for longevity. Also just my opinion!


    ;)
    #56
  17. SpeedyR

    SpeedyR SE in the SE

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    I got the moose set a month or two ago but haven't installed it yet. I ordered some new gaskets, water pump vane thingy, lower temp thermostatic switch for the radiator (from a KTM 525 ATV), but haven't gotten the new water pump shaft from CJ yet. As soon as that gets orders/arrives, I'll remove the old parts, flush the system well, and install the new temp thermostat fan switch, samco hoses, hardened water pump shaft and hopefully addressed another known failure point with the 950 motors.
    #57
  18. chevtech

    chevtech Been here awhile

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    This is no longer a day and age of mediocre clamps (or the bad wind ones that cut ANY hose), or consideration for stretching after releasing used clamps, and then trying to fit them to new (potentially different dimensioned) hoses. NOBODY has come forward (yet) with claims of Silicone hose failure. Traditional rubber hoses degrade quickly with the leeching of hydrocarbons out of the hose, which is accelerated by heat (9*0 run hot)! Silica based hoses, wires, whatever are virtually impervious to heat and is why they can make such things as this:

    https://www.bedbathandbeyond.com/st...g-professional-silicone-baking-mat/1014715754

    Can you imagine baking something at 480F with an uber thin rubber sheet beneath it?!? Hope you like your food wrapped in burnt tire rubber! LOL!

    Good silicone wires won't melt/burn even if it touches your exhaust! I have good silicone coiled test/jumper leads that start at about 6', and stretch to ~16' that are 20 years old, used a couple times a week for years, dropped against the exhaust multiple times and still stretch back damn near as well as the day I bought it! YRMV. Silica is the new rubber IMO!

    ;)
    #58
  19. Unhingedlizard

    Unhingedlizard Been here awhile

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    Ive had mine one for about 30,000km and about 2 years now. The only issue ive ever had was the top pipe that goes across the engine was cut too short by about 4mm. wasnt worth my time sending everything back or waiting on a new part (as I got the kit to replace a split hose) so I just pushed everything else out by a touch to make it fit. I used the hose clamp kit too as the edges of the clamps are rounded so as not to cut into the silicone. my stock clamps had sharp edges.

    Leaked a bit from a couple of clamps when I first used it but a half turn on the clamps where it was leaking and its been fine since.
    #59
  20. Dennis Walter

    Dennis Walter Adventurer

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    As I'm getting ready to replace my water pump on my 2006 950 the hoses look like a nice upgrade.

    Looking at KTM Twin's I see a hose kit for a 990 but not for a 950.

    Anyone know if the 950 and 990 take the same hose kit ?
    #60