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Joined: Dec 26, 2007 Posts: 1279 Location: Scottsdale, Arizona
Posted: Sat Jan 23, 2010 9:06 am Post subject:
BadWolf wrote:
Ok so Last night the plan was to split the cases and have a look inside. Took the Primary Cover off and just sitting in there were a snap ring and a thrust washer.
If you examine that snap ring closely, you'll notice that one side of it has sharp edges while the other side is slightly rounded or chamfered. The sharp edged side must face away from the thrust. In other words, it should be facing you as you look at it after installation. Otherwise, thrust against the snap ring will allow it to spead and slide out of the groove. A very common installation error. BTW, if the snap ring rattles on the shaft when it's installed, someone has spread it too far to get it off. Don't try to squeeze it back down. It's physically damaged and weakened, so use a new one.
Joined: Dec 31, 2009 Posts: 23 Location: Cleveland,Ohio
Posted: Sat Jan 23, 2010 10:08 am Post subject:
I was planning on replacing this snap ring anyways. Will it matter if i just use a regular snap ring instead. Ankhe105 i do appreciate the advice. What was wrong with the oil pump? If i know i can look out for this. I decided last night as i was cleaning off the cylinders and heads that instead of spending the money i dont have on this project. Im gonna make it a nice strong running clean bike. I will still invest in the paint. Thats cuz this things been painted as far as i can tell 6 times and the fenders are beat up and wavy gravy. Anyone know if you can get replacement brake shoes for these beasts?
Also the reason i am doing the cosmetics as well is because the bike was torn apart when i got it so i might as well but a little elbow grease into it.
Joined: Aug 26, 2007 Posts: 348 Location: Glidden Wisconsin
Posted: Sat Jan 23, 2010 10:26 am Post subject:
BadWolf wrote:
I was planning on replacing this snap ring anyways. Will it matter if i just use a regular snap ring instead. Ankhe105 i do appreciate the advice. What was wrong with the oil pump? If i know i can look out for this. I decided last night as i was cleaning off the cylinders and heads that instead of spending the money i dont have on this project. Im gonna make it a nice strong running clean bike. I will still invest in the paint. Thats cuz this things been painted as far as i can tell 6 times and the fenders are beat up and wavy gravy. Anyone know if you can get replacement brake shoes for these beasts?
Also the reason i am doing the cosmetics as well is because the bike was torn apart when i got it so i might as well but a little elbow grease into it.
Stu, thanks for the advice on the snap ring. Did not know that and now I'm thinking itcould be off again?? Sure HATE to take that cover off AGAIN but I better check. The gear is behind the clutch basket so it can't come off but wobbling around in there is no good either.
Well, Badwolf, I'm going to show why I'm a novice here as well. The bleeder screw is LeFT HAND thread on the oil pump! I stripped the hole out trying to get it loose by turning it counter clockwise. GRRRR! Maybe this will save you from making the same mistake. I had a knowledgable guy seal the screw but I'll never really trust it so found a new one on Ebay that I will install this spring. Someone told me a good way to check for oil flow is to look for smoke of course but also when you put the pump back on, prime the oil lines with a different color oil. That way, you can see if it's moving to the cylinders steadily as it should. Doug
Joined: Dec 31, 2009 Posts: 23 Location: Cleveland,Ohio
Posted: Sat Jan 23, 2010 11:19 am Post subject:
Great advice!! Ive never dealt with oil injection 2 stroke vehicles so this will help. Also anyone know if theres a way to tell by frame number what year the bike is?
Joined: Aug 26, 2007 Posts: 348 Location: Glidden Wisconsin
Posted: Sat Jan 23, 2010 11:27 am Post subject:
I'm not sure how to find out about the year but hopefully someone knows.
Oh yeah, I bought a pair of NOS rear shoes from the German guy who's email addy I posted earlier. If you PM me your email, I will forward his last pdf file of what he has, or you can eamil him. Doug
Joined: Jan 20, 2010 Posts: 83 Location: Hattiesburg, MS
Posted: Sat Jan 23, 2010 12:17 pm Post subject:
Checked my stash of parts, and can't seem to locate the TC250 sidecover! Don't give up the ship....I see them quite often on Ebay, and saw three of them at Vintage Motorcycle Days last year. Started to buy them---They were reasonably priced. One will show up, just be patient. Wish I had one for ya'! Danny Mac.
If you examine that snap ring closely, you'll notice that one side of it has sharp edges
Stu
good call Stu, they are stamped out resulting in those edges, same with flat washers always install them flat side down (sharp edge to compression) it doesn't take much to get in to the habit of doing it that way and before long it's not something you even think about, you just do it as a natural course of assemble
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