Did I leave a spacer out of the transmission?

[rosehill_rider]

I split my case and put a new crankshaft in and then put it back together. When i put the sprocket back on the motor i noticed the whole set of gears and stuff move about 2 mm from side to side. (if you look at the motor from the front the movement is from left to right) I also found a homeless washer/spacer :bang: Should there be a movement like this or should ite stationary? thanks for any help

 

[whenfoxforks-ruled]

Look at the parts micro fiche after you measure the washer. It will match up and confirm that you get the esteem pleasure of doing it again. Leaving a gear out is worse. 2mm sounds to me to be about a washer thickness missing. But, on what kind of bike? This could be normal for a Chinese bike?

 

[rosehill_rider]

Ha no chinese bike. It's an rm 125. I guess i have to split the case again. Atleast I found the washer before i put it all back togeter.

 

[IndyMX]

Hey, don't be too down on yourself..

I had to pull my nephews KX85 apart to replace some bearings..

I had layed a bead of sealant around the case half, and looked over to the other end of my really big 5 foot long work bench, and noticed the entire transmission laying there.

Thought for a second, looked down and noticed a very empty gearbox in my hands.

I hadn't pulled the cases together yet, but I still had the sealant on there that had to be redone.

It's happened to all of us at one time or another.

Then about a year ago, after doing the top end on my 450, I had just torqued the head down, and was looking for the head pipe, I noticed the front cam chain slider sitting on a shelf.

Had to pull the head back off, order a new head gasket and reinstall. 3 days and $35 bucks later, I had the head back on.

It's stuff like that that teaches you to be very patient and thorough when rebuilding.

 

[Ol'89r]

Fun with friends.

It's always fun to collect a few gearbox shims and circlips and when your buddy is done with his engine and you're all sitting around enjoying a cold one, place a couple of the shims or circlips on the bench and say, Where's that go???? :yikes: :laugh:

 

[High Lord Gomer]

Man, that is EVIL!!

 

[TRexRacing]

There's always a couple guys in the shop who just deserve a circlip on the bench after a rebuild.I'd just walk by while they are in the can or something and set it on the bench.Let 'em sweat a bit but as soon as they'd pick up a wrench ya gotta tell 'em.Anything more is just mean.

 

[rmc_olderthandirt]

I once rebuilt the engine on my little mini-pickup. Had the engine all done, lifted it off the engine stand with the cherry picker and while it was hanging I slapped the clutch on.

All through the rest of the installation I could never find my 12mm socket.

When I started the engine I found the missing socket. Apparently it had stayed on the head of the last clutch bolt that I had torqued down. When the engine started it flew off, rattled around in the bell housing a bit before punching a hole and escaping.

Other than a hole in the bell housing everything was OK! I even found all the pieces of the socket and took it back to Sears to get a new one for free!

Lesson learned: When you are putting something together and a part/tool comes up missing, stop what you are doing and find it!

Rod

 

[whenfoxforks-ruled]

Them washers are REAL good at sticking to races, and managing to fall off at a really inappropriate time, when your not looking where it came from.

 

[RM85rider123]

I once rebuilt the engine on my little mini-pickup. Had the engine all done, lifted it off the engine stand with the cherry picker and while it was hanging I slapped the clutch on.

All through the rest of the installation I could never find my 12mm socket.

When I started the engine I found the missing socket. Apparently it had stayed on the head of the last clutch bolt that I had torqued down. When the engine started it flew off, rattled around in the bell housing a bit before punching a hole and escaping.

Other than a hole in the bell housing everything was OK! I even found all the pieces of the socket and took it back to Sears to get a new one for free!

Lesson learned: When you are putting something together and a part/tool comes up missing, stop what you are doing and find it!

Rod

crafstman rules :boss:

 

[Ol'89r]

Man, that is EVIL!!

Only if you let him take the engine back apart. ;) :laugh:

 

[whenfoxforks-ruled]

I like the confident ones,"no, no way I forgot that"? Stupid jap trannies, they work as well as a swiss watch. As long as they are in spec, and in order. Otherwise, they come apart like a caramel corn ball in the heat.