2004 Savage LS650 16xxxx miles

Replaced the infamous oil leak cap, rocker cover gaskets, washers under the three big bolts, new high temp silicone around. Took her for a test run and after about 5 miles of highway speed, the plug on the right side of the cylinder popped out and shoot steaming hot oil all over my leg.

My question to you guys:
What could make the cap pop like that?
Will I need to take off the cylinder top off again to replace the plug?

Thanks!

Rico

Too much rtv blocked the tube?... ...

King Rico wrote on 05/22/15 at 08:56:51:


Well....now you know what happens if you "block" the breather tube.

The engine needs a vent......that is why the factory went to the trouble of installing one.  The big single "huffs and puffs" as the pistong goes up and down....as the volume of the engine changes as the piston moves up and down in the cylinder, and the rings don't seal 100% of the combustion gases and some leak past the rings and has to go somewhere (out the tube to the breather).

Well, Ill take that as a lesson learned. Ill try going with the mini breather KnM style cone.

Anyone know if the top of the cylinder has to come off for the plug installation? I ordered the part today and should have it in about a week.

Thanks again!
Rico

The one that blew out had ridges that sat in slots, the old
Tab A, Slot B trick.
Inspect to see if it's damaged.

You need to disassemble to put it back,I'd think.
As for RTV, that is not what the maintenance manual calls for.
I really have a hard time imagining that puny vent tube and its wimpy little wire " hose clamp" staying on and blowing that part out. I'd be really studying why the oil pressure was so high Right There.
Is it possible that it shifted and wasn't exactly where you wanted it while you were wrestling with all the other stuff that was demanding attention?
The thickness of the goo is important. It determines the cam bearings clearance and that, if its too loose, decreases oil pressure in that area.
But no, plugging that tube is not okay. That piston is pumping air every time it comes down and goes up. That tube allows the crank case to inhale and exhale. That thing that looks like a wadded up pan scrubber gives oil vapor something to hit , collect on and drip back into the engine, so, don't ditch it.
.


Of course you can take a shot like Dave said.. but certainly unplug the hose

I call that great news.. points to the plug in the hose, tho I still don't see how that popped out ahead of the hose popping off.. as long as the dude didn't hurt it, it's just a hassle,, and Dave's answer looks like a real low hassle idea.

@ justin_o_guy2- I ended up replacing the whimpy wire tie with a couple zip ties. I guess I had in on there fairly tight!

Thanks again for all the advice. You Savages are life savers.

I'll give the rubber hammer a shot. Might order two plugs just in case.

King Rico wrote on 05/22/15 at 19:22:28:



Dang dude, that wimpy hose clamp mita saved you a hassle.