Should you pressure test a new engine ???
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Should you pressure test a new engine ???

  1. #1
    Member CashLeak's Avatar
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    Default Should you pressure test a new engine ???

    I have my rebuilt BBC In and hooked up . Cam needs broke in and Im thinking I want to do that in the water. I want to make sure I have no leaks or other issues at start up Can or should you pressure test a new engine before start up or do the gaskets need a heat cycle to seat . I used Fel Pro gaskets
    Last edited by CashLeak; 08-13-2013 at 09:38 AM.

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  3. #2
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    I pressure check with air while the engine is still on the stand; had to fix one in the boat, never again

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    Member CashLeak's Avatar
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    thanks for the response I was beginning to think I was asking a stupid question

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  6. #4
    Member CashLeak's Avatar
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    I pressure checked the engine at 15lb and Its loosing about a one pound a hr Don't want to start it for the break in if its going to leak water. Do the gaskets need a heat cycle to seat The intake manifold was tight going in had to grind the tabs down to get it to fit . The heads and deck were not surfaced so it should have just dropped in . Some help would be great. My builder didn't seem to think its a problem but im sure he doent do jet boats every day
    Last edited by CashLeak; 08-15-2013 at 03:11 PM.

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    Senior Member 67weiman's Avatar
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    What does it being a jet boat have anything to do with it? It doesn't matter what it is on as far as the intake goes. It would be indentical to any other motor in anything... Why wouldn't it sit down properly? What tabs are you talking about?

    Edit... Why would the gaskets need a heat cycle to seat? Would that not mean, they would leak on every motor every time a motor was assembled? How many motors hydro lock on initial start up?
    Last edited by 67weiman; 08-15-2013 at 03:57 PM.

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