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General Discussions & Announcements General Announcements, General Questions, e.g. What bike do I buy?, etc. |
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#21
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If that bearing wasn't smooth from the get go then something is wrong. There is no situation where any sticking/binding in a crank bearing works out ok. Sorry.
On your bearing installation problems... how long are you heating the cases for and how long are you freezing the bearings and crank for?
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WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#22
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Oh well, I guess i need to buy another. Bearing spins so good now tho with the crank.
When I installed it, I used a torch to heat the cases very hot, then I used cooling spray on the bearings |
#23
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I've done more a few engines and never had one that the standard heat and freeze method didn't work like a charm. Something is causing interference in your cases if that method, regular oven heating and the freezing of the bearing in a standard household freezer, doesn't let the bearing just drop in. Check the case recesses for burrs, gouges, or anything else other than just raw aluminum.
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WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#24
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Is it bad to mix a Koyo Bearing with an SKF bearing on the crank? Can I use koyo on one side and skf on one side?
2. Can you use C3 bearing on one side and c4 on one side? |
#25
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Mixing of brands isn't an issue. However, only use the style of bearing that is called for. If it calls for a C3 then use a C3, not a C4 or any other. GasGas, and every other manufacturer, has a reason for why they spec a certain type of bearing for any given location. Don't mess with that.
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WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#26
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I am 95% sure the GG 125 bearings cross over to YZ125 and CR125 bearings of similar years. Do some research and you can find good deals for a pair of bearings on Ebay or at industrial supply houses.
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#27
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Quote:
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2003 txt250 Pro 2013 Ossa 280i |
#28
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Btw, how do I know if the crank needs balancing? I know if you dont do it when it needs to, your engine is going to have a massive fail
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#29
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Quote:
Quote:
Personally, I wouldn't worry about it. I've had numerous cranks done with aftermarket rods and pistons and never have had one balanced nor have I regretted not doing it. Truing the crank is the critical thing. Maybe one day when I have the extra cash and I'm doing one I'll try it just to see if it's actually worth it (ie; how much of a difference it makes)
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WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#30
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That makes me calmer. Thanks for the answer
Ill be ordering new bearings, hopefully this shitpile will be running within a couple of weeks |
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