mistergrumpy
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| posted on 9/5/11 at 06:18 PM |
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Sump Pressure
Does anyone know how much pressure roughly there is inside a ZX9 sump? I've chopped and welded it and it seems to be holding oil fine sat here
after patching a few pin holes but I'm wondering if it'll leak when it's on and running?
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minitici
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| posted on 9/5/11 at 06:24 PM |
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Assuming that your crankcase breathes then the pressure inside the sump should be near atmospheric.
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mistergrumpy
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| posted on 9/5/11 at 06:43 PM |
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Cool. That's good then. Just noticed 2 more tiny pinholes where it's weeping, not dripping though 
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SeaBass
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| posted on 9/5/11 at 07:06 PM |
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Remember the oil viscosity will change when it's piping hot though!
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adithorp
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| posted on 9/5/11 at 07:07 PM |
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There shouldn't be significant presure, just the weight of the oil. Once it's hot though the oil will get a lot thinner and find any gaps.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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perksy
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| posted on 9/5/11 at 07:30 PM |
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When the welding is finished on the sump, test it by filling it with Clean parafin
You'll soon see if it leaks..
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johny p
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| posted on 9/5/11 at 07:35 PM |
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and if it still leaks.... quick steel.. its fookin awsome stuff
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mistergrumpy
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| posted on 9/5/11 at 08:20 PM |
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Yep I was thinking of quick steel as I don't want to be bothered keep messing with pin holes and then creating other pin holes. It's been
a good project to learn on with all the nooks, crannies and bends but it wasn't easy and I wouldn't want to do it again.
I'll try paraffin tomorrow. Thanks all.
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