Screwed up big time adjusting valves


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A2Wing
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Screwed up big time adjusting valves

Postby A2Wing » Fri Aug 26, 2016 2:43 pm



I think I screwed up, big time. After adjusting the valves, I started the her up. After a minute or so, I heard some "chatter". Let it run for a few minutes, actually rode around the neighborhood. Didn't like what i heard. I'll keep this short and to the point. I removed the left side valve cover and found that the lock nut for the #4 intake adjusting screw had disappeared. I mean nowhere to be found. I see a sort of rectangular shaped opening above and between the 2 exhaust pipes. That's the only place that I can see that the nut could have gone. So...now, what do I do? Where can the nut go from there? Will It find it's way to a place where it can do serious damage? Do I pull the head and try to find the nut?
HELP!!!



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WingAdmin
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Re: Screwed up big time adjusting valves

Postby WingAdmin » Mon Aug 29, 2016 5:57 pm

I might suggest you use a cheap borescope (they are available that hook onto a cell phone now) and have a look inside those two cylinders and see if it is rattling around in there. Also have a look at the valves and the valve seats and see if there is any visible damage.

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Re: Screwed up big time adjusting valves

Postby roadwanderer2 » Mon Aug 29, 2016 6:52 pm

until you find that lock nut i don't suggest you run that motor. if it did go down inside the head and you start that motor, you'll definitely do damage to the valves and pistons depending on where it went not to mention that valve will back itself off and become loose. if you think it went down into the exhaust pipe, you might want to take the center clamp off the cross tube, remove the exhaust system and turn it upside down to hear if its rattling around inside. if it is inside the front pipes, turning them upside down and shaking them might free it so it comes out, but until you know exactly where it went, dont run that motor.

if you decide to take the head off, and you find the nut, take both heads off and install new head gaskets to both sides.

stuart.

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Scooter363y
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Re: Screwed up big time adjusting valves

Postby Scooter363y » Mon Aug 29, 2016 7:04 pm

I'm thinking that the square hole is a oil return (drain back) passage. Stick a small magnet down there and "fish around for it". If you don't get it might just lay there in the sump for the rest of its days. Or it could come out with the next oil change. Replace the drain plug with a magnetic one if it doesn't have one already.

Order a new one and be sure to torque down those nuts.

Good luck

Scott

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ekvh
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Re: Screwed up big time adjusting valves

Postby ekvh » Mon Aug 29, 2016 8:06 pm

I'd fish through the opening of the return galley for oil first.( the opening you referenced above) You may get lucky. Next drain the oil, and see if you get lucky. Next a strong magnet dragging underneath to see if you can guide it towards the oil drain. A good magnet will pull right through the aluminum.

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Re: Screwed up big time adjusting valves

Postby ekvh » Mon Aug 29, 2016 8:06 pm

And to comfort you, you're not the first by a long shot.

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A2Wing
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Re: Screwed up big time adjusting valves

Postby A2Wing » Wed Sep 07, 2016 8:41 pm

Thanks for all the replies, and advice. The borescope/endoscope is what did the trick. I wish I had thought to take a couple of pics using the scope.

I drained the oil, hoping the nut would just flow out. No such luck. Then probed around with a magnet. No luck. All this while waiting for the Amazon ordered "CrazyFire Endoscope" to arrive. I don't mean for this to sound like a product review for the scope, but, it was easy to set up on my Samsung Galaxy III, it has a very clear picture, and, with the magnet attachment, it found and retrieved the lost nut. About $23. A whole lot easier and cheaper than tearing the engine apart. Yeah, the nut probably would have spent the rest of its days in the oil pan, and not really hurting anything, but, I'm happy to have removed it.

Thanks again for all the good ideas.

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WingAdmin
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Re: Screwed up big time adjusting valves

Postby WingAdmin » Mon Sep 19, 2016 10:02 pm

A2Wing wrote:Thanks for all the replies, and advice. The borescope/endoscope is what did the trick. I wish I had thought to take a couple of pics using the scope.

I drained the oil, hoping the nut would just flow out. No such luck. Then probed around with a magnet. No luck. All this while waiting for the Amazon ordered "CrazyFire Endoscope" to arrive. I don't mean for this to sound like a product review for the scope, but, it was easy to set up on my Samsung Galaxy III, it has a very clear picture, and, with the magnet attachment, it found and retrieved the lost nut. About $23. A whole lot easier and cheaper than tearing the engine apart. Yeah, the nut probably would have spent the rest of its days in the oil pan, and not really hurting anything, but, I'm happy to have removed it.

Thanks again for all the good ideas.


Glad to hear this worked. Is this the unit you purchased? https://www.amazon.com/dp/B01B4J8OJ4/re ... ingdocs-20

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ekvh
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Re: Screwed up big time adjusting valves

Postby ekvh » Mon Sep 19, 2016 10:07 pm

That's awesome! Glad it worked and thanks for telling us about it.

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A2Wing
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Re: Screwed up big time adjusting valves

Postby A2Wing » Mon Sep 19, 2016 11:49 pm

WingAdmin..Yes, that's the one I purchased. It worked well, it did the job.




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