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Post by novista on Feb 13, 2007 13:49:57 GMT
Alright all. Spent most of sat/sun taking my engine apart, i'm sure most of you could get it done blindfolded, spent a good 30 mins trying to remove primary drive bearing. Had a serious epiphany at work, yesterday, and thought maybe i should RTFM, an everythings clear now, no need to remove it afterall... PK50 S. 1st ?. Should i have a needle bearing, for the kick shaft (flywheel side), as i don't seem to have one (bastard bearing goblin).  2nd ? Any tips on implements/tools to get the main drive (crank clutchside) bearing out. As none of the sockets i've got are big enough. Managed to build new clutch after biting the bullet and bought a clutch compressor, only to find it could be another 2/3 cms longer, wanka!  I think i'll take some photos on the next visit to my mates shed, which i'm sure everyone will be well interested in...  That's about it for now, noob signing off. |
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Post by unreliablesc on Feb 13, 2007 15:18:42 GMT
1st ?. Should i have a needle bearing, for the kick shaft (flywheel side), as i don't seem to have one (bastard bearing goblin). 2nd ? Any tips on implements/tools to get the main drive (crank clutchside) bearing out. As none of the sockets i've got are big enough. 1. No, just the o-ring 2. If you are repalcing it, just hit it with whatever you have. get a bigger socket / pice of pipe for later. |
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Post by novista on Feb 13, 2007 16:46:34 GMT
1st ?. Should i have a needle bearing, for the kick shaft (flywheel side), as i don't seem to have one (bastard bearing goblin). 2nd ? Any tips on implements/tools to get the main drive (crank clutchside) bearing out. As none of the sockets i've got are big enough. 1. No, just the o-ring 2. If you are repalcing it, just hit it with whatever you have. get a bigger socket / pice of pipe for later. Cool, cheers. Off to the scrappys, when i checkout the sizes, flywheel 42mm (forgot to say, thats the size of the hole, not the bearing), maindrive... |
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Post by smallframesdotcom on Feb 14, 2007 9:06:39 GMT
To get the bearing out put the case in the oven and heat it up. The bearing will drop out. Or buy a blind bearing puller from Machine Mart or somewhere.
To fit the new ones put the crank in the freezer for a few hours, heat the new bearings on a gas stove or with a blowtorch and they will slip right onto the crank. Then freeze the crank again before you put it in the engine cases.
As for the clutch compressor, buy a longer bolt the right size from an old-school hardware store.
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Post by novista on Feb 14, 2007 10:30:04 GMT
To get the bearing out put the case in the oven and heat it up. The bearing will drop out. Or buy a blind bearing puller from Machine Mart or somewhere. To fit the new ones put the crank in the freezer for a few hours, heat the new bearings on a gas stove or with a blowtorch and they will slip right onto the crank. Then freeze the crank again before you put it in the engine cases. As for the clutch compressor, buy a longer bolt the right size from an old-school hardware store. The wifes gonna love all this! ;D |
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Post by hank on Feb 15, 2007 15:43:27 GMT
youve got that bastard circlip off the gear cogs? i've ben trying for an hour to get mine off, bought another pair of circlip pliers and they are just as crap as the other pair - wont open enough to lift or push the circlip off, maybe theres some secret skill i'm missing  |
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Post by jonnysnatchsniffer on Feb 15, 2007 19:37:20 GMT
get some snap on ones mine work a treat, oh and they come in different sizes and its hard with small ones
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Post by smallframesdotcom on Feb 19, 2007 1:01:36 GMT
See all the engine teardown pictures on my site? That's all my kitchen ;-) The missus thought it was "cute" that I was rebuilding my engine in there. To get the bearing out put the case in the oven and heat it up. The bearing will drop out. Or buy a blind bearing puller from Machine Mart or somewhere. To fit the new ones put the crank in the freezer for a few hours, heat the new bearings on a gas stove or with a blowtorch and they will slip right onto the crank. Then freeze the crank again before you put it in the engine cases. As for the clutch compressor, buy a longer bolt the right size from an old-school hardware store. The wifes gonna love all this! ;D |
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Post by novista on Feb 19, 2007 13:00:17 GMT
youve got that bastard circlip off the gear cogs? i've ben trying for an hour to get mine off, bought another pair of circlip pliers and they are just as crap as the other pair - wont open enough to lift or push the circlip off, maybe theres some secret skill i'm missing I used a pair of needle nosed pliers (they just reached), as i kept bending the circlips out of place . GL hank. |
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Post by hank on Feb 19, 2007 13:40:24 GMT
yep i managed to get it off - just bought some better & bigger circlip pliers. The tip i can now give anyone who doesnt know already is that those circlip pliers with several detachable heads that you get on ebay for next to nothing are shite! Get four individual pliers to cover all cases. |
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Post by novista on Apr 11, 2007 13:50:17 GMT
To get the bearing out put the case in the oven and heat it up. Cheers small that worked a treat apart from the fact that i've split the plastic ring that sits on the end of the main frame mount, as it had popped off in the oven, i tried to hammer it back on while the rubber was still hot and expanded, which was funny. Thought, i'll let that cool down first, waited, smacked it with the hammer, surprise, surprise it broke. Any tips for getting a new one back on, maybe just heating the plastic ring itself? Oh yeh the bearings are right crunchy now i've cleaned the casing (to the best of my ability) and dropped loads of shit in them, any ideas for getting them clean, just a petrol soaking? Also engine case cleaning, i'm thinking of getting them power steam cleaned, any thoughts? |
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Post by MiNiKiN on Apr 11, 2007 22:56:04 GMT
shit in bearings: brake cleaner and an air gun (better wear some goggles).
pressure wash: WD40 right after cleaning
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Post by hank on Apr 12, 2007 10:13:32 GMT
To get the bearing out put the case in the oven and heat it up. The bearing will drop out. Or buy a blind bearing puller from Machine Mart or somewhere. To fit the new ones put the crank in the freezer for a few hours, heat the new bearings on a gas stove or with a blowtorch and they will slip right onto the crank. Then freeze the crank again before you put it in the engine cases. As for the clutch compressor, buy a longer bolt the right size from an old-school hardware store. if i freeze the new axle bearing and heat the casing to fit it, do i then have to heat the bearing up and freeze the axle to put that in? doesnt heating bearings up with a blowtorch trash them? or do i just warm them a bit, rather than getting them really hot |
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Post by breezer on Apr 12, 2007 17:30:14 GMT
heat on bearings is a bad thing!!!!!!!!
better to use brute force...
you could heat it gently on top of a radiator, I suppose
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Post by hank on Apr 12, 2007 18:52:39 GMT
yep, your mechanic told me the same, breezer. if the bearings have turned bluey/black with heating them up, then they are well and truly fucked! its very confusing....... maybe i should get the hair dryer out ;D |
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