To be specific the interchangeable parts are all of the cases, bearings, carbs parts, inserts, rods, P/S sets etc. Cranks are interchangeable between the B5 & B6 but not the B2 as the stroke in that engine is different and it was done by crank pin placement.

So then I can put the b2 sleeve in the b5 pro? Or no?

I'm so confused now lol. I'm just gonna leave it alone lol

good idea lol :lol:

bearing issue
 

my b5 pro has been thru 2 gallons including beark'in . and i ran it yesterday .. it ate 2 glow plugs in 300 ml of fuel .. engine myt have been a little on the lean end .. but i felt it was fine .. i opend my engine n the rear bearing has some lateral play in it .. n while running the engine there was some sound ,. i think it was d bearing .. do i need to change it ?? but it rolls fine .. there some play between the two rings .. sideways play .. im sry i cnt explain well .. plz help me understand this or do i hv to change d bearing ?

what kind of glowplugs did you chew ?

If there is a rattling sound our whining sound that you hear when the engine is running (and is not caused by having your gear mesh set incorrectly) then it is probably the bearing. Any time your bearing is starting to go out replace it. That is not something that you want to just get around to when you get around to it and keep on running the engine. I say this as when a bearing fails the mess that it makes of your engine is usually quite spectacular! So in regards to bearings always play it safe.

The bigger question though is why is your bearing failing with only 2 gallons on it? So...make sure that you check how you are doing things i.e. the air filter set up that you are using (dirt), your tuning (running too lean = a lack of lubrication), your fuel (sometimes you just get a batch that was blended incorrectly with too little oil in it (not too common but does happen with smaller brands)) and finally your after run procedure i.e. do you use after run oil every time after running your engine if you are in an area with high humidity conditions (not doing so can = rust on bearings).

Edit to the above, I just noticed that you are running a Pro which has one of our ceramic bearings in it instead of steel. We use some really high end Swiss bearings and those things normally do not fail. Also rust and lubrication are generally not an issue with them either so... if the bearing is failing then it's either going to be dirt or possibly eating a glow plug element. In any case to check if the bearing is going just pull the crank and put your thumb against the inner race. Now push firmly against the inner race and rotate. Check to see if you feel any grittyness or notchyness. If everything feels smooth like butter you are ok.

werks no.5 and a werks no.6 . both new plus an old no.5 which was installed.

its either the bearing or the plug and does bearing and glow plugs failure affect each other becuz nothing seemed too be wrong ..\

airfilter wudnt b a problem becuz i had just installed new one ..
glow plug element is a no ..
tune cud have been a problem as still learning and im at 3000ft .. fuel 25% 10.8 percent lube
i think it was rusting even tho i had applied afterrun oil .. i checked the inner race of rear bearing and it wasnt smooth .. a little on the gritty end not much tho
and theres whining sound ..

thank you for the replies and help so much

Take the engine apart...then inspect the crankshaft to see if there are any signs of ingesting dirt... ..Dirt gets into these engines far more often then I think people realize... Definitely not something worth messing with, best bet is to take that engine apart, inspect it, clean it then if your not sure of anything take a picture and ask a second opinion...

here is what to look for on your crankshaft...If you see these kinds of markings it means your engine has ingested dirt

http://i107.photobucket.com/albums/m...h172006032.jpg

will check tommorrow wen the sun is out .. its night here .. .thank u will report aftr checking:nod:

no indoor lighting..??

lol ..
theres lighting but i dont sleep with my cars .. garage is where it stays .. n i was in bed.

B5 & B6 Wins black Friday race at the pit Columbia sc
 

Lots of werks motors at this race. James banta takes pro buggy win with b5, and b6 pro takes the sportsman buggy win. Both of us were also running werks clutches.