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Project Linkin's FZR250R 3LN3

Discussion in 'Your 250cc Projects' started by Linkin, Jan 31, 2015.

  1. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    I would have the cooling system pressure tested at a radiator repair place before going any further. This should tell if you have a leaking gasket.
    If when you get the head off, have a look for corrosion holes around where the water passages are. Heads can be welded and remachined to fix those problems.
     
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  2. The Wizard

    The Wizard Well-Known Member

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    Have you checked for bubbles in the coolant now that the thermostat is out?
     
  3. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Good suggestion Dr. Murdo..... Adrian, just bring the bike up to Tamworth and use my Fizzer while the Fizzer Factory does its magic! :thumb_ups:
     
  4. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    There's also a top notch radiator/cooling system place up here if you end up coming up....
     
  5. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    I've been busy this evening...

    [​IMG]

    Put this stuff in the radiator and the overflow as instructed. Idled for a bit as instructed. I went for about a 10KM ride which it didn't say on the instructions, but I thought that it would be a good idea to get the engine warm and get this stuff flowing around... Idling the engine just creates hot spots. One would think you want this stuff to fully circulate and mix with the existing fluids.

    Anyway, I checked the overflow while stopped at a light and some of the stuff had been forced out of the overflow tube and caked itself on the exhaust just near where it joins the headers. I inspected it and it seems to have solidified nicely on the exhaust. Hopefully it does the same on the head/gasket.

    The "seal-tite" stuff I could not find, this was the closest thing. Rather pricey. $72.50 for 680g of the stuff.
     
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  6. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    where did you buy it?
     
  7. MashtX

    MashtX Well-Known Member

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    Supercheap sells it, dunno about everyone else
     
  8. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Correct
     
  9. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    intersting, no draining required.... Might be still worth flushing out and replacing the coolant
     
  10. Mclaren

    Mclaren Well-Known Member Contributing Member

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    That is just like chemi weld mate
    Have u dropped oil to see if milky cheapest way to check if water getting in it
     
  11. risky

    risky risky

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    chemi weld is cheaper.
     
  12. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    I haven't done an oil change yet no.

    I think this head gasket stuff has done the trick. I rode the bike to work and the indicated temp was a lot lower than it has been since I got the bike. When I reached work I felt the frame for the usual hot spots and noted that they're significantly cooler than before. Of course need to go on a longer ride and see how the bike reacts.
     
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  13. risky

    risky risky

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    like tamworth????
     
  14. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    The road the Tamworth is long and boring.

    I was thinking more along the lines of the national park tomorrow morning :D
     
  15. risky

    risky risky

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    leave the thermostat out. check fluid level.watch temp gauge.
     
  16. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Doesn't leaving the thermostat out mean water moves around too Fast? To cool properly with the radiator and fan?
     
  17. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Correct!
     
  18. risky

    risky risky

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    yes but until the gook is cooked i would leave out. if all goes well then and only then would it go back in. too early and it could seal the themostat off.
     
  19. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Yeah no luck with the head gasket fix today. I went for a short ride for fuel and around the CBD, hopped off and the crap got spat out of the overflow onto swingarm, exhaust, rear tyre etc.

    Will flush the system and put the thermostat back in, and take it in to get the head gasket done...
     
  20. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Bring it to Tamworth.....
     

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