Blown right cover gasket - Kawasaki KLR 650 Forum
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post #1 of 8 Old 03-27-2015, 03:14 PM Thread Starter
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Blown right cover gasket

Someone experienced apparent cam damage due to what seems to be a right side cover gasket which blew at the top front. He reported experiencing this after an oil change. He seems to be competent so I credit his report of events.

Has anyone seen the right side cover gasket (2009 15,000 miles cover never off) which blew in that area?
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post #2 of 8 Old 03-27-2015, 03:59 PM
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Norm -

I have had the right cover off more times than I care to count. There has never been a weakness in the cover gasket hat I have seen.

If the gasket failed at the top of the cover, then yes, he'd lose his cams shortly after that. The oil galley that feeds the transmission and head is right there. Thing is, the gasket is hell-for-stout in that area.

In truth, though, it's hard to imagine losing the cam due to a blown case gasket.

Fire the engine up, then take the oil filler cap off. Pretty much the same effect, and how could you not notice that?

Tom

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On the way downtown I stopped at a bar and had a couple of double Scotches. They didn't do me any good. All they did was make me think of Silver-Wig, and I never saw her again. -Philip Marlowe

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post #3 of 8 Old 03-27-2015, 07:08 PM
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Originally Posted by Tom Schmitz View Post
Fire the engine up, then take the oil filler cap off. Pretty much the same effect, and how could you not notice that?

Tom
A tale was once told . . . KLRista traveling in South America lost his oil filler cap to a neafarious native at a service station stop . . . the rider somehow never noticed, 'til he fried his engine from lack of oil . . .

I wondered the same thing; how could he NOT notice the "Old Faithful" fountain of hot oil on his boots . . .

And, I wondered at the motivation of the allegedly felonious indigenous person . . . why would he steal a KLR oil filler cap, of all things?

Then again, I wasn't THERE; skepticism doesn't impeach the truthfulness of the anecdote in any way . . .
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post #4 of 8 Old 03-27-2015, 07:41 PM Thread Starter
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He did notice the oil but not before (apparently) the damage had occurred. I haven't heard of any failures of this type also but wanted to check in case someone could offer something substantial. I will see if more information can be gleaned either as information or to help him in some manner.

I think I've reused that side gasket on this bike 4 or 5 times.......just had to chuckle though as wonder how many times you and Paul have reused that gasket in all your investigations?
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post #5 of 8 Old 03-27-2015, 08:40 PM
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I just switched to a new one two cover removals ago. With care they can go a half dozen reuses before some of the holes get a bit weak and flimsy.

I know what about a half cup of oil coming out of a quarter inch puncture looks like. You can't hardly miss it. Two liters coming out of a split gasket ought to be like being on the Maid of the Mist, only darker and smellier.

Tom

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On the way downtown I stopped at a bar and had a couple of double Scotches. They didn't do me any good. All they did was make me think of Silver-Wig, and I never saw her again. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
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post #6 of 8 Old 03-27-2015, 09:01 PM
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Two liters coming out of a split gasket ought to be like being on the Maid of the Mist, only darker and smellier.
Or perhaps, like water-skiing behind the EXXON Valdez . . .
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post #7 of 8 Old 03-27-2015, 09:31 PM
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Guys,
I Never reuse a paper based, cover gasket, not even on my own bike! (Except in emergency situation. RTV to the rescue, I hope.) I do not dope them. I do not grease them. Clean and Dry.
I can not afford to do a job twice. Second time for free, just because of a minor oil 'seep', much less a Blow-out, with catastrophic damage?

I've only had the clutch cover off of my 1987, once! Mileage 63,944.
In the middle of my oil flow alterations, to lap and re-spring the PRV, replace the WP seals and install the 'antique' NOS kick-starter kit. That 20+ year old gasket had to be 'nibbled' off in crumbs.

In another couple hundred miles, I will see how well adhered a 3 year old gasket is! It will be replaced with NEW. I still gotta' build and test a least one, secondary Crankshaft oil filter.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #8 of 8 Old 03-27-2015, 09:33 PM
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Quote:
Originally Posted by Damocles View Post
Or perhaps, like water-skiing behind the EXXON Valdez . . .
I think that is a good description.

When I holed my case there was no doubt what was happening, and that was a hole behind my left leg. The oil mess was quite something to see.

"Two liters should leave quite a trail on the highway", Tom spewed.

Tom

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On the way downtown I stopped at a bar and had a couple of double Scotches. They didn't do me any good. All they did was make me think of Silver-Wig, and I never saw her again. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem

Last edited by Tom Schmitz; 03-27-2015 at 09:36 PM.
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