'83 XJ650 Gasket and Torque ??

On my '83 XJ650, she's got oil that spews out from the two gaskets circled in picture. This happens only under lots of pressure, eg. highway or heavy driving in the city. (Given'r some to get through hectic Cager Hell).

Left Side....


Right side....


Checked the manual over and over and see nothing of this mentioned as in Torgue for the 4 Philips Screws on each side or mention of gasket for those two plates.

(Altus probably noticed the Oil when he tagged me at Princess Auto near end of summer).

Also noticed there was a Annoying oil drip from centre underneath, which I figure there's a bolt that just needs a washer put on and tightened there?

SO questions are..

1. Is it possible to just get those gaskets without buying all of them or full engine gasket set. Possible to make my own out of gasket material?

2. What the Torque's for those on the side and the one underneath?


Stamp =)

 

That's going to be your "front" and "rear" main seals. Actually, from what I can see, there's a normal seal on the left side (under the timing pickup plate), but just a plug at the other end. There are gaskets under the covers as well, but they're there mainly to keep water from getting in. If you're leaking a lot of oil there, then the crank seals are shot and letting oil out of the crankcase.

 

In the left side you have the pick up coils (no oil) on the right is a cover plate only, if you have got oil in there something is broke, you sure it's not dripping from above?

 

I have leaky fork seals on one of my 550s and it sprays back and travels down the motor and looks like all sorts of terrible things are failing. The cover on the left (the ignition pickups) has a gasket, the one on the right is just for looks, and has no gasket. TAKE THEM OFF and look in there. If there's no oil (especially in the right one) you're being fooled by oil from elsewhere.

I looked in my factory 550 book, and there is no torque spec for the screws. Good and snug is fine, neither cover holds back any pressure or anything. Just tighten reasonably tight by hand and you're good.

 

So if I understand correctly, I pull both covers and there should be nothing but dryness there? Forks seem fine, and oil only appears after running it say 5K rpm so really driving hard up through the gears, or on highway. haven't seen signs' of oil pooling anywhere else but the top of both sides. and of course when parked.. that stupid drip underneath centre. which I believe as mentioned above it's a bolt underneath that needs either just tightening or a gasket (platstic? washer) replaced if there is one on it.

Have heard about the oil dripping from the carbs.. but looks dry and the Air boot seems dry as well. She sounds mint, no missing.. power is always there and no odd noises except for highspeeds when you hit that annoying zone and sounds feels like that things going to rattttttttle appart and you go one click up or down and it's gone.

 

In the left one you will find the ignition "rotor" and pickup coils, and since there is a seal in behind all that there may be some "oiliness" but nothing major. On the right, there is nothing behind that one but air and the crankshaft "butt" seal. On both my bikes, when I looked in the right side it was kinda corroded but dry. Just do it, it's no big deal; pull the screws and figure out what's going on. Oil could be coming from anywhere on the motor and "traveling" you would be amazed. Won't know for sure until you look. How many miles on this bike?

Oh, and gaskets can be got separately.

 

Hmmm about 35K maybe on it.. gauges were changed before I saw it.. they said there was 31k? roughly reading on it.. the ones on there now say 51k and change, but my speedo died and ran it about month without.. Soo guessing 35K on it. the Oil part didn't turn up until i had it on the highway for PD13 last summer.

 

take the covers off. Look in there. Report back.

 

I'll place my money on cam cover gasket. He gets on the freeway, oil gets good and hot, thins out and runs down the front of the engine. Then that 70+ mph wind blows it back on the covers.

 

OK, valve cover gasket was changed, and that stopped the oil leak, Wellllllll I thought it did. Once again, when I get it up to pressure build up. eg. Highway, high revs, etc... that oil Spews out and soaks the whole side. I power washed it and even took some of the engine paint off to makes sure that sucker was clean!!! so I could find the Freak'n Leak. Well ripped through the city and on the way back, (higher rev, not so p**** footing), oil started to drench the side cover.

Here along the top with it on stand and reving I see it bubbling on the top where there's a seal/gasket


Now...












Mechanically she runs like a dream.. It's just the stupid Oil leak!!!!

How she looks now

 

Ok, I finally broke down and Just took the damn thing off.. not what I expected!!! GRRRRRRRRRRRrrrrrrrrrrrrrrrrr

Alright now Can I get just that peice and replace it safely without dismantling the whole motor. Easy fix? pain in the arse fix? or Give up now and beat it to death?

 

That's the darndest thing I've seen in a while; there's no logical way for that damage to have occurred.

It looks like you should just be able to pound (gently of course) a new seal in. Doesn't look from your photo like it has a "trapped lip" or anything. That's simply the crankcase "end" seal, there's no load or anything on it. WTF happened to the original is something to ask the PO.

I'm showing they're still available from Yamaha, pn 4H7-15167-10-00
PLUG, BLIND 1, for $9.64. (Betcha chacal has 'em cheaper.)

Not the end of the world.

 

I could be wrong,but I believe there is a"trapped lip"oil seal on this end of the crank,and if oil is getting to the blind plug ,it would indicate that the seal is u/s .Hope not ,have to split cases to replace. Cheers, Murray

 

According to the fiche, the only seal on THAT end is the one you're holding in the last couple pics. Easy fix.

 

Unfortunately, the one on the OTHER end (behind the ignition pickups) IS a "trapped lip" seal. However, member rpgoerlich recently affected a repair of that seal on his 550 without having to split the cases if it turns out that side is really bad too. (You might have had some "traveling" going on.)

 

Yup fitz, was wrong, knew there was one in there somewhere,just wrong end ,cheers,Murray.

 

Ok, found a part in town, same part number.. doesn't really look the same, but is the right size. So I'm thinking mine might have been the way it was from Japan.

So, going to slowly nuzzle it in the hole. Apply a very thin coat of Silcone to the outter edge, and then slowly push it in to it's place and stop when it's flush. *Fingers crossed!

 

Ok, I finally have it in... YAYAY!!!



So it's in, it's curing.. I'm not even going to attempt to start it to make sure it Doesn't leak until later tonight or tomorrow, Just to make sure!

I smeared a nice thin layer of silcone around the outside. Put in place and slowly tappppppped it into place with a rubber mallot. got it Flushed.. then wiped the excess goop from the outside.

Put a light smear around the cover gasket and placed it back on.

It's either going to work! Or there's going to be one hell of an oil trail.

=)

Thank you to everyone who helped with this oil delima =)

 

That cover's not supposed to get a gasket; probably added by whoever poked the hole in the plug. You should be fine.

 

GRRRRRRRRRRR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! W! T ! F !....

So yesterday I Drive it around and everything seems ok. Took it for a quick rip down a small strech of highway, up to 120 clicks.. around an off ramp back down again and another quick 120 click jaunt into the city. All seems well. So today, out and about and everything seems ok. Hit the highway, come off the same as last week... Look down and everything freak'n coated again, as I see it bubbling out through the cover again!!!!!

GRrrrrrrrrrrrrrrrrrrrrrrrrrrrr!!!!!!!!!!!!!!!!!!!! So is the plug the wrong one? and the right one does have a slight little lip like the origonal?

 

It shouldn't be "blowing out" the blind plug like that. Is your breather possibly kinked/clogged, causing excessive crankcase pressure buildup?

 

I haven't even opened it yet. It's cooling right now. (ok I'm still cooling, it's problably good enough to touch now). Buttt.. earlier when I shut it down, I heard a faint (Hissssssssssssssssssssssssss) sound on the left side down by the tranny/block area. As if releasing preasure sound.


Now the breather would be that area? haven' t looked it up yet. just hate touching things and making them worst.

 

Breather tube seems ok, did notice that the intake boot on carb2 is slightly off from it's seat postion and the clamp is bobbing around in it! Grrrr plus notice there's a screw missing from holding the airbox in postion/still on the left side above the chain box.

Nox Can I safely just remove that breather tube and blow through it? make sure it's not clogged?

Also looking at the plug's, the old one has "BP3 48 5.5 A2" written/stamped on it. The new one has "BP 48 6.5 A13" written/stamped on it. Soo that makes me think possbily it might by off just a hair, plus that slight hair of a lip on the old one might play a part?

Just waiting on Chacal to find out if the one's he carries has the lip on them as well? Where this new one didn't.

 

OK, got down and dirty with her. The plug blew out clean. Cleaned up, re-silconed and replaced. Now if it blows again, then Chacal get's a call. As for why I was so confident to pop it back in without a thousand more questions. I checked the Breather tube.. no kinks and clear. The sepage tube(?) that comes from the box down to the ground.. that tube was clean and the area it connects was clean.

Nowww mind you I"ve been staring at the breather diagrams like a mad fool. I did notice a plastic peice that goes into the airbox and into a rubber grommet. I figured what the hell I've checked and cleaned everything else out, I pulled it out.. look at it.. Ohh cool, just like a PCV valve on a car.. pucker up.. and BLOWWWWWWWWWWWW.... Dizzy gilspe had nothing on me!!!! Well holy shit.. look at that clog! Took me 15 minutes to clean it out wiht a screw driver. was about an Inch Packed, (looked like dead bugs spider anything that crawled and wanted to die). This thing was Packed, jammed, hard!

I think the problem has been resolved! Will take it for a spin tomorrow down the hiughway and see what doesn't Blow!

Thank you once again to everyone who helped out!!!!! =)