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hints/tips on alternator change

Posted: Thu Apr 28, 2011 5:39 pm
by leopard_pagan
changing my alternator as old one gave up the ghost.
any tips before i start?

Re: hints/tips on alternator change

Posted: Thu Apr 28, 2011 5:43 pm
by tanuki
Replacment gasket, socket set and possibly IIRC allen keys, and either drain your oil or lean the bike right over.

easy.

Re: hints/tips on alternator change

Posted: Thu Apr 28, 2011 6:27 pm
by leopard_pagan
gasket- check came with alternator today.. honda part too.
IIRC allen keys:-- eh... i have standard one.. and star ones...
sockets of course...

will drain oil as dont fancy leaning bike.. may fall over!
i al also doing a cheaky.. will be re-using the old oil + top up as the bike will only get used for another week, then sat for two months which i can do oil/filter change then.

Re: hints/tips on alternator change

Posted: Thu Apr 28, 2011 9:31 pm
by thunderace
Shouldn't need to drain the oil to change the stator bud :peace:

Re: hints/tips on alternator change

Posted: Fri Apr 29, 2011 6:39 pm
by leopard_pagan
as i didnt lean the bike over.. i did drain the oil.
piece of piss job getting this done.. the ONLY ball ache was cleaning 9yr old gasket off the sides.

+ i dont think i tightened the bolts up enuf (no torque wrench) as i had a slow oil leak when i got back after a short ride. have re-tightened them all again. see how it goes tomorrow.

oh and voltage is showing12/13 bike off. 15/16 at 5k Rpm & 13/14 at idle.... on a flatish battery so its still charging at idle at the mo.
will check again tomorrow.

Re: hints/tips on alternator change

Posted: Fri Apr 29, 2011 10:27 pm
by BillingCBR
If you can pick it up from Thetford Jollye's you can borrow my torque wrench if you want, got a 3/8'' or 1/2'' drive to pick from :)

Re: hints/tips on alternator change

Posted: Sat Apr 30, 2011 6:34 am
by leopard_pagan
lol will buy one as both mate and i need one. hes got a bigger one, we need a smaller one for smaller bolts.
Draper do one for £20-25

Re: hints/tips on alternator change

Posted: Sun May 01, 2011 12:47 am
by Cammo
leopard_pagan wrote:oh and voltage is showing12/13 bike off. 15/16 at 5k Rpm & 13/14 at idle.... on a flatish battery so its still charging at idle at the mo.
will check again tomorrow.
15-16v is much too high - usually a sign that your reg/rec is stuffed because it can't shed the excess voltage.

Re: hints/tips on alternator change

Posted: Sun May 01, 2011 8:22 pm
by leopard_pagan
its BRAND NEW Reg rec, the first thing i replaced at the start of all this.
Spoke to bike shop yesterday and they said readings were fine "normal" as the bike was charging a almost flat battery. as i didnt charge it up before i changed the alternator.

i will be checking the readings again as want to let things settle first.

+ i only have 4 days left to make the most of riding my bike! then i am off work for 5 weeks on medical leave, off bike for a min of two months!... so TBH.. if the RR fecks the battery.. battery is under warranty at the same bike shop who advised me readings were fine.

Re: hints/tips on alternator change

Posted: Mon May 02, 2011 4:55 am
by Cammo
leopard_pagan wrote:its BRAND NEW Reg rec, the first thing i replaced at the start of all this.
Spoke to bike shop yesterday and they said readings were fine "normal" as the bike was charging a almost flat battery. as i didnt charge it up before i changed the alternator.
Well I hope it does work properly. The charge going into the battery shouldn't change, flat or not.

The alternator kicks out up to 18v, the regs job is to bring it back down closer to 13v. A sure sign your reg is fooked if it can't regulate the voltage to below about 14.5v....

There are other checks you can do to see if the reg is faulty, they're in the haynes manual.