how to tell if a motor is seized? with pictures

[TurboT]

Originally Posted by Weldangrind

Only a guess, but I presume that all of the bearings are rollers (not babbit), so the aluminum is more likely piston material or maybe case material, if the timing chain was rubbing on the case.
.

Rod bearing a roller??

The mains I'd expect rollers but never seen that on a rod bearing before.. not that I'm not here to learn something new.

[Weldangrind]

When you're over next, I'll show you the roller rod bearings on my old TS100.

[TurboT]

Originally Posted by Weldangrind

When you're over next, I'll show you the roller rod bearings on my old TS100.

I can't wait.

[mizke]

damn it, wish i could come over.. i need more then 1 friend who is into power sports.. even my 1 friend who has a dirtbike does not like riding with me and my atv.. says im to slow..

i swear i ever hit the lotto my house is going to be an adult play ground.. buy 200 acres of land, with a moon bounce, big ol swimming pool with a blob, grotto, water slides, atv trails, and a really long drive way for the spirited driving, skid pad for drifting fun, gun range, a pet bob cat, ugh just need 60 million bucks to make it happen..

[Reveeen]

Usually you only see roller bearings in the bottom ends of 2 cycle engines, how else would the fuel-oil mix suspended in air lube the bearings? (*think* roller bearings, or ball bearings, will not hold oil under pressure worth crap, to lube the rest of the engine)

The "Usual" for 4 stroke engines is a a "plain" bearing, or a "babbitt" bearing:

http://en.wikipedia.org/wiki/Babbitt_%28metal%29

The main feature is this bearing will hold oil pressure and allows the entire engine to be lubricated with a single, simple, oil pump.

Some hybrids do exist, but they are few, and far between, and certainly not in most of our price range.

[katoranger]

I don't believe the rod is removable from the crank on these engines.

You have to buy it as a unit.

http://cgi.ebay.com/ebaymotors/ws/eB...d=330428766733


Sounds like you just need a new crankshaft and piston rod.

[TurboT]

Originally Posted by katoranger

I don't believe the rod is removable from the crank on these engines.

You have to buy it as a unit.

http://cgi.ebay.com/ebaymotors/ws/eB...d=330428766733


Sounds like you just need a new crankshaft and piston rod.

Looks like you're right. Crankshaft is a press together I think I read somewhere.

That link you sent is good, that one is 'high performance' 8O

[Weldangrind]

Originally Posted by Reveeen

Usually you only see roller bearings in the bottom ends of 2 cycle engines, how else would the fuel-oil mix suspended in air lube the bearings? (*think* roller bearings, or ball bearings, will not hold oil under pressure worth crap, to lube the rest of the engine)

The "Usual" for 4 stroke engines is a a "plain" bearing, or a "babbitt" bearing:

http://en.wikipedia.org/wiki/Babbitt_%28metal%29

The main feature is this bearing will hold oil pressure and allows the entire engine to be lubricated with a single, simple, oil pump.

Some hybrids do exist, but they are few, and far between, and certainly not in most of our price range.

It would seem that the engine I'm working on is unusual; check out item #5: http://www.cmsnl.com/suzuki-ts100-19...ist/85706.html

[justinkr58]

wow, thanks everyone. I think I will buy a new complete motor. It will be easy, new, and my old one will have many parts for the new one. so last question anyone have one for sale. it is a long .

less than ebay $300 shipped

[justinkr58]

what about this?? it seems you can buy just the rod

http://cgi.ebay.com/ebaymotors/Gy6-M...ltDomainQ5f100

[TurboT]

Originally Posted by justinkr58

what about this?? it seems you can buy just the rod

http://cgi.ebay.com/ebaymotors/Gy6-M...ltDomainQ5f100

..and why lookie there, it has a roller rod bearing. W&G scores again.

You'd have a bitch of a time pushing that crank back together unless you have a fixture and a big arse press. Or have a buddy with a motorcycle machine shop. I don't think a 30lb sledge is a good option on these.

[BillR]

Originally Posted by TurboT

...I don't think a 30lb sledge is a good option on these.

But that's my favorite "precision tool"...If hit don't fit, get a bigger hammer... :twisted:
Check around in the old Yellow Pages, you might find someone that can press it back together...otherwise, I'd save up for a complete motor.
JMHO,
Bill R

[katoranger]

I would vote on the complete motor too. I looked further and found a crank/rod for $50.

[justinkr58]

oh i measured from the wrong spot. i def have a short motor. i bid on one on ebay

[Reveeen]

Originally Posted by Weldangrind

It would seem that the engine I'm working on is unusual; check out item #5: http://www.cmsnl.com/suzuki-ts100-19...ist/85706.html

Is not a TS100 a 2 stroke?

KZ Kawasaki motorcycles (900, 1000, 1100) have a roller bearing crank. The oil pump is high volume low pressure, when adding a turbo you have to add an electric oil pump and separate oil supply.