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Author Topic: Springtime suprises!~ oil everywhere!  (Read 1118 times)

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Offline mikedialect

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Springtime suprises!~ oil everywhere!
« on: April 22, 2008, 04:50:58 PM »
So, I parked my 1978 CB750F (18.5K) for the winter in october. Went through the necessary prep. Changed oil, drained carbs, filled tank + sea foam. The bike was running pretty good last summer. About 3k on it over the warm months. Was leaking a hair of oil above the cylinders... figured it needed new rings maybe? Never really got around to it. So, it's finally a livable state in MN (for the time being) and I've got the bike out twice now. 30 miles. Did the whole change oil and such before I got it out. I noticed today that I'm dripping oil like crazy out of the left side top cylinder. Wondering what the hell happened. I'm wondering if the gasket might have just had it's last winter or if something else could have gone wrong. Anyone have any ideas?
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Offline scunny

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Re: Springtime suprises!~ oil everywhere!
« Reply #1 on: April 22, 2008, 05:03:15 PM »
your new oil has managed to flush out a deposit that had formed at your existing leak
I've just flushed the system on a previously oil tight mtor and oil now flows freely from a rocker cover
thats my 2p
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Offline mikedialect

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Re: Springtime suprises!~ oil everywhere!
« Reply #2 on: April 22, 2008, 05:06:02 PM »
Quote from: scunny on April 22, 2008, 05:03:15 PM
your new oil has managed to flush out a deposit that had formed at your existing leak
I've just flushed the system on a previously oil tight mtor and oil now flows freely from a rocker cover
thats my 2p


Definitely a thought I had. Not much of a quick fix on this one I'd suspect. Well, other than pulling my oil pan to check my pump!!! sheesh.
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Offline 750goes

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Re: Springtime suprises!~ oil everywhere!
« Reply #3 on: April 23, 2008, 12:25:53 AM »
no reason to check your pump - if oil is coming out it is definitely getting oil there....
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Offline goon 1492

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Re: Springtime suprises!~ oil everywhere!
« Reply #4 on: April 23, 2008, 06:47:25 AM »
Quote from: 750goes on April 23, 2008, 12:25:53 AM
no reason to check your pump - if oil is coming out it is definitely getting oil there....
+1 pump is definetly working, I don't like to winterize my scoot i like to battery tender and start it once a month and let it run a little. sucks it does sound like a gasket might have finally let go....
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Offline mikedialect

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Re: Springtime suprises!~ oil everywhere!
« Reply #5 on: April 23, 2008, 08:28:41 AM »
well, thats good to know. Just a damn shame. I don't think i could ride her with the leak for much longer. It's pretty freakin' oily.
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Offline pddpimp

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Re: Springtime suprises!~ oil everywhere!
« Reply #6 on: April 23, 2008, 03:53:48 PM »
Let me know when you want to tackle that pig. I'll bring some tools and service manual.
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When the majority of the United States population get to be 70 years old, they will finally realize what is really important. And by then it'll be too late.


-'77 CB750 Cafe/Muscle bike (early clone)
Soon to have a hopped up 836cc *sold*

-'75 CB750 with a little bit of character
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