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Post by jerseyboy on Jun 16, 2013 22:06:46 GMT -5
Since we have to change our oil so often I was just wondering if anybody had the torque specs for the drain plugs on a GY6,,also for the rear gear,,i think the rear gear is a 6 mm bolt I'm not sure so maybe 15 foot pounds or  inch pounds sound right? Do we have to remove BOTH drain plugs on the GY6 for an oil change? How long should we wait before changing to full synthetic also? Thanks Tommy |
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Post by geh3333 on Jun 16, 2013 22:44:54 GMT -5
Im pretty sure the drain plugs on the gear box are 10mm . But i really dont know the torque specs on either. Im usually just really careful not to over tighten like i did on my old engine  |
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Post by ryaanlx on Jun 16, 2013 23:30:26 GMT -5
I just impacted them on, I don't think there are curtain torque specs for something like that, the gear box bolts are 10mm and the engine oil cap is I believe a 3/4 or 13/16. Use the proper tools you don't want those to be stripped!
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Post by justin010304 on Jun 16, 2013 23:36:22 GMT -5
I just impacted them on, I don't think there are curtain torque specs for something like that, the gear box bolts are 10mm and the engine oil cap is I believe a 3/4 or 13/16. Use the proper tools you don't want those to be stripped! WOW. You say use proper tools, but you are using an impact on drain plugs, and nothing on these scooters are SAE so that 3/4 or 13/16 should stay right in the tool box. I would never use an impact on ANY drain plug! I have seen different sizes for both drain plugs, 17 and 19mm for the large one and 10 and 8mm for the gear box. While your in there you should replace them with Prima's magnetic ones. I think I got mine from spec cycles or drowsports for under $10. I don't know the proper torque specs off the top of my head, but the should be anything excessive, the main plug has an o-ring and the gearbox plug has a crush washer. Your guesses are probably pretty close. I'll check my manual and see if they are listed in there. EDIT Engine drain plug 12 ft/lb 5 mm bolts and nuts 39-52 in lbs 4.5-6 Nm 6mm bolts and nuts 69-104 in lbs 8-12 Nm 8mm bolts and nuts 13-18 ft lbs 18-25 Nm 10 mm bolts and nuts 22-29 ft lbs 30-40 Nm 12 mm bolts and nuts 36-43 ft lbs 50-60 Nm 4 mm screws 22-30 in lbs 2.5-3.4 Nm 5mm screws 30-43 in lbs 3.5-5 Nm 6 mm hex bolts 87-121 in lbs 10-14 Nm 8 mm hex bolts 17-22 ft lbs 24-30 Nm 10 mm hex bolts 25-32 ft lbs 35-45 Nm |
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Post by jerseyboy on Jun 17, 2013 5:32:57 GMT -5
I just impacted them on, I don't think there are curtain torque specs for something like that, the gear box bolts are 10mm and the engine oil cap is I believe a 3/4 or 13/16. Use the proper tools you don't want those to be stripped! I know what size wrench to use to remove them of coarse,,but on a bolt that uses a 10 mm hex head,,the threaded stud is usually 6 mm in dia.Ive seen 8mm hexes that use 6 mm studs on my Taotao.Also the only time I ever used an impact on my scoot was to remove the variator,clutch,front and rear axle nuts,,then I use a torque wrench to tighten them,,you could get into trouble using an impact on anything to tighten them.They will end up way to tight,stripped,or to loose.Most likely too tight unless its a small cordless drill type set to a really light setting. |
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Post by jerseyboy on Jun 17, 2013 5:34:16 GMT -5
[replyingto=justin010304]justin010304[/replyingto]Thanks for that info bro,,
It will come in handy,,just don't want to over/under tighten anything.
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Post by sailracer on Jun 17, 2013 7:51:51 GMT -5
As far as the drain plug goes, treat it like you would an automotive oil filter. Hand tighten, then 1/4-1/2 turn with a wrench. It wouldn't hurt to coat it with neva-seize either.I have no idea how you can get away with an impact on anything on an aluminum case!
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Post by jerseyboy on Jun 17, 2013 13:42:49 GMT -5
[replyingto=salracer]sailracer[/replyingto]I tightened the one with the O ring down by hand,,then went another 1/4 turn and it got tight fast,,so i put the torque wrench on it set to 10 ft lbs..and gave it a shot,,it only moved a hair before the wrench clicked,,so i think 12 ft lbs would be a little too tight IMO.
Saw a guy torque his head bolts down to 20ft lbs on a video this morning,,i thought that was a little too tight also,,those studs can snap/twist easy cause they are so long...
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Post by sailracer on Jun 17, 2013 13:49:46 GMT -5
:Dthat should be all you need. ;D
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Post by justin010304 on Jun 17, 2013 14:11:35 GMT -5
20 ft lb on the head studs is fine, they don't break till around 30 ft lb. You don want the head lifting, most big bore kits bump up the compression.
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Post by jerseyboy on Jun 17, 2013 19:13:14 GMT -5
[replyingto=justin010304]justin010304[/replyingto]Thanks for the info guys!!
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inch pounds sound right?
jet