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  1. #21
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Can you pressure test the expansion pipe?

    If the pipe has a crack, you can get water intrusion.

    If the pipe is not cracked, you must be getting water through the exhaust manifold to expansion pipe gasket then.


  2. #22
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    Quote Originally Posted by xlint89 View Post
    Can you pressure test the expansion pipe?

    If the pipe has a crack, you can get water intrusion.

    If the pipe is not cracked, you must be getting water through the exhaust manifold to expansion pipe gasket then.
    Excellently will pressure test pipe. Will report back thanks

  3. #23
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    Quote Originally Posted by xlint89 View Post
    Can you pressure test the expansion pipe?

    If the pipe has a crack, you can get water intrusion.

    If the pipe is not cracked, you must be getting water through the exhaust manifold to expansion pipe gasket then.
    Hey tested the pipe
    Click image for larger version. 

Name:	IMG_8709.jpg 
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    So couple of things
    On the manifold side where th bolts go I have a flat price of wood. And a c clamp. So itís not leaking with the tuck tape

    On the red circle hose. When I blow in it and hold pressure it will hold pressure!

    When I pump up the yellow circle. It leaks around the blue circle. Hairline crack around it. I put water on it and itís bubbling

    So my question. Is it cracked inside ,

    Or am I not getting the manifold to pipe mount good

    I put the four main bolts in. And cross tighten. Then the two supporting bolts
    I used a brand new gasket. ,(got water intrusion)
    Tryed the gray 20 minture pwc gasket maker
    Still water
    Gonna try red gasket maker (24hr)

    Any thoughts

  4. #24
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    Quote Originally Posted by Msxslayer View Post
    Hey tested the pipe
    Click image for larger version. 

Name:	IMG_8709.jpg 
Views:	27 
Size:	57.8 KB 
ID:	450437

    So couple of things
    On the manifold side where th bolts go I have a flat price of wood. And a c clamp. So itís not leaking with the tuck tape

    On the red circle hose. When I blow in it and hold pressure it will hold pressure!

    When I pump up the yellow circle. It leaks around the blue circle. Hairline crack around it. I put water on it and itís bubbling

    So my question. Is it cracked inside ,

    Or am I not getting the manifold to pipe mount good

    I put the four main bolts in. And cross tighten. Then the two supporting bolts
    I used a brand new gasket. ,(got water intrusion)
    Tryed the gray 20 minture pwc gasket maker
    Still water
    Gonna try red gasket maker (24hr)

    Any thoughts
    Click image for larger version. 

Name:	IMG_8714.jpg 
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ID:	450439
    Another thing
    When I blow in the red circle
    In the green circle in the center hole (not water jacket) it puffs out when I blow through the red circle hose

  5. #25
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    It's very difficult for me to understand what you're asking. If you have multiple places leaking air, it's tough to move forward until you know the pipe is not the problem.

    What you need to do is make sure the exhaust portion of the pipe is air tight from the cooling side of it. If you cannot say for sure they are sealed, moving forward is senseless.

    I think I asked before, but cannot remember. Are you starting the engine, then turning on the garden hose? Then shutting off the garden hose and then the engine during testing?

    If not, you might be forcing water into the engine.

    Also, how are you hooking the garden hose up to the engine for testing? Clear pictures might help please.

  6. #26
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    Quote Originally Posted by xlint89 View Post
    It's very difficult for me to understand what you're asking. If you have multiple places leaking air, it's tough to move forward until you know the pipe is not the problem.

    What you need to do is make sure the exhaust portion of the pipe is air tight from the cooling side of it. If you cannot say for sure they are sealed, moving forward is senseless.

    I think I asked before, but cannot remember. Are you starting the engine, then turning on the garden hose? Then shutting off the garden hose and then the engine during testing?

    If not, you might be forcing water into the engine.

    Also, how are you hooking the garden hose up to the engine for testing? Clear pictures might help please.
    Engine on water on. Water off engine off


    Hooking garden hose to water manifold rail


    Iíll test exhaust portion to see if it leaks into water jacket

  7. #27
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    Quote Originally Posted by Msxslayer View Post
    Engine on water on. Water off engine off


    Hooking garden hose to water manifold rail


    Iíll test exhaust portion to see if it leaks into water jacket


    Testedted the exhaust only,, big openings both ends plugged and the top hose thingy
    Seems okay not going into water jackets.

  8. #28
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Good and good.

    So if it's not the garden hose filling up the pipe, and it's not the exhaust pipe leaking into the exhaust side. It's got to be a seal.

    1. O ring head gasket

    2. Exhaust manifold to cylinder gasket

    3. Exhaust/expansion pipe to exhaust manifold gasket.


    Is every gasket mating surface flat and free of scratches or gouges?

  9. #29
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    Quote Originally Posted by xlint89 View Post
    Good and good.

    So if it's not the garden hose filling up the pipe, and it's not the exhaust pipe leaking into the exhaust side. It's got to be a seal.

    1. O ring head gasket

    2. Exhaust manifold to cylinder gasket

    3. Exhaust/expansion pipe to exhaust manifold gasket.


    Is every gasket mating surface flat and free of scratches or gouges?
    In previous post head orings help pressure.
    Has to be pipe to manifold seal. Iím gonna get red rtv silicone and try that stuff instead of the non harden gray kind and not use the gasket

  10. #30
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    If you attempt to reseal the exhaust manifold, make sure you follow the proper bolt torquing sequence and in increments. Meaning follow the right order and 5 ft. lbs on all, then 10 ft. lbs. on all, etc, until you get the correct torque.

    I'd suggest bolting the pipe to manifold the same way too. 5 ft. lbs in criss cross pattern, then 10 ft. lbs, etc...

    (Note: it does help to clean the bolt and hole threads with a tap and wire wheel. If there's a build up of gunk it can give false readings of being tight, when it's actually not. Also any dried sealant in the bolt hole may prevent the bolt from bottoming out.)

    If you're going to use an RTV silicone, make sure to use it sparingly. You don't want it oozing into the water passages and restricting your coolant flow. After everything is torqued in order, and in increments make sure there is uniform oozing of silicone all the way around the part. If you got 1/8" bead in one spot, and no oozing in another, something is wrong.

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