Shim shrapnel

[Guest]

Hi all. My first post but I've already gleaned an encyclopedias worth of knowledge here.

Anyway, I was tuning my 450 on the center stand and accidentally over revved her to about 10,500. Red line is 9500 for a reason... Post apocalyptic inventory is 1 bent intake valve, 1 shattered shim, and 2 damaged cams. I feel lucky after seeing pics of others explosions.

The only problem is I can't find all the shrapnel.
2016-09-03 12.04.56.jpg

I've removed the head, cylinders, pan, and oil filter and probed as much as possible with my magnetic wand. Should I remove the side covers? It seems to me that those are pretty separate from the main crank area and unlikely that heavy metal chunks would float to another chamber. I don't like the idea but I'm thinking I should just put in a magnetic drain plug and let it and the filter do the job. I'm just leery of doing more damage with those pieces still in there.

What do you all think? Let it be or dig further? All options and opinions welcome.

[thebusdweller]

I would never leave debris in an engine, nothing good can come from it, Tom

[TeamDar]

Looks like another non-OEM shim failure.

[Agemax]

keep searching and probing with the magnet, remove covers if necessary. try slowly rotating engine while probing with magnet. i would not start it up until you have found all the pieces.

[Steve]

I had a similar situation with my Kawasaki. It was due to a slipped "special tool" and not a case of over-revving, though.

After probing the oil pools around the shim buckets, I found enough pieces that I was comfortable continuing with the valve adjustment process.





When anybody tries to tell me how easy it is to use the Suzuki "special tool" to remove the shims, I show these pictures and say "no, thanks" and continue using my zip-tie to hold the valve open.

.

[railtrumpet]

Non OEM indeed. That shim was purchased from Z1 in 2013; probably from the bad batch. Another lesson learned.

The zip-tie method is elegant and the method I prefer. Why would one need a tool when a little ingenuity works just as well or better.

More probing found a locator pin but that's it. I was hoping for a tip or trick or special place that all the little pieces end up.

So, onward and inward, side cover removal coming up. Or maybe I'll have my linebacker nephew pick it up and shake it like a bottle of ketchup.

[Oldman99]

Found the bottom half of the engine case on ebay, so you could have a better idea of where your looking. I used this same picture not 3 days ago when I dropped one of the washers(copper) from the head nuts down the cam chain hole. Good luck!

s-l500.jpg

[GregT]

Pull the alternator cover - and i'd probably pull the rotor too as any magnetic shrapnel could finish up inside.
Pull the clutch and primary cover - and the clutch. I've found rubbish in behind the clutch before...

[Agemax]

I would like to know how you "accidentally" revved it to 10.5k while "tuning" it on the stand?

[tatu]

Middle 'C'?

[John Park]

Middle 'C'?

But you have to B sharp to catch it in time.

[tatu]

But you have to B sharp to catch it in time.

Now its A flat