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BigJimny Meet 2019 (17 May 2019)

BigJimny Meet and off-road driving day



20TH OCTOBER 2019

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See HERE for details - See HERE for discussion


Noggin and Natter - pre-event chat - Old Bell at Grazeley (part of hotel) 7:30pm 19th October

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alternator squealing

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02 Mar 2016 14:22 #163256 by Decklandpt
Replied by Decklandpt on topic alternator squealing
@kirkynut, dont think so, the belt is less than a year old. doesn not feel plasticky, and cand feel any wear by running my finger in the tread.

@ back in black, there's no ascertainable wear on the belt, and no rubber dust.

maybe the belt tension needs adjusting, or maybe the crank pulley is on it's way out, i'll check it out this weekend, but i'm dead sure the noise i hear comes from the alternator bearing. as for the squeal, maybe it's the bearing locking up...dunno.
gonna have a look this weekend and send it to my garage next week.

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03 Mar 2016 11:14 #163279 by Back in Black
Replied by Back in Black on topic alternator squealing
Good luck, I hope the issue is the cheapest and easiest fix ;)

It took me a while to work out where the dust was coming from.

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03 Mar 2016 17:02 #163296 by kirkynut
Replied by kirkynut on topic alternator squealing
Squirt WD40 in the area of the bearing to see if the noise goes.

Kirkynut

The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0

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03 Mar 2016 17:18 #163299 by facade
Replied by facade on topic alternator squealing
On mine, the alternator rusted inside, and at startup, the high charging current pulled all the rust flakes into the rotor, and jammed it solid. (Is the theory from the auto electricians who sold me another.) I don't know for sure, as they wont come apart without breaking the casing when they are old.

Switching off, and looking for a problem freed it off for a few days until The Big One, when it stayed seized until I took it off and tried turning it backwards, when it went free.

Probably what helped to write off the front pulley I suppose.

If it suddenly breaks, go back to the last thing that you did before it broke and start looking there :)

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03 Mar 2016 18:14 #163302 by Decklandpt
Replied by Decklandpt on topic alternator squealing
@kirkynut, yeah, that was my first tought, just hope i don´t set it on fire. gonna see if it helps in the weekend.

hard part wil be checking out the rubber in the crank pulley, since it's behind the radiator.

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03 Mar 2016 18:19 #163304 by mlines
Replied by mlines on topic alternator squealing

minibbb wrote:



Is this the right part? Seems suspiciously cheap mind you


That part lists as only for the WagonR+

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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03 Mar 2016 18:21 #163305 by minibbb
Replied by minibbb on topic alternator squealing

mlines wrote:

minibbb wrote:



Is this the right part? Seems suspiciously cheap mind you


That part lists as only for the WagonR+



Thanks Martin- that's what happens when you rely on Google!

Ordered the genuine part which was £124 posted. Going to the garage tomorrow but it's annoying as I want to rule the alternator bearing out as the suspect too!

Squealing is horrendous and also the belt is powdering near to the alternator

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07 Mar 2016 11:02 #163441 by Decklandpt
Replied by Decklandpt on topic alternator squealing
so,had a look in the weekend.
it's definitly the bearing. the crank pulley was fine, no cracks in the rubber bond, and no off-axis spinning
sprayed some wd-40, it helped as long as it was being spayed, but as it was turning it was being spat out, so i turned of the engine, added some more wd-40 and left it to rest, tomorrow i'll drive it to work and see how it goes. do you guys reckon i'll need a new alternator or can the bearing be replaced?

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07 Mar 2016 11:44 #163444 by facade
Replied by facade on topic alternator squealing
If you can get the alternator apart, you should be able to remove the bearing and match it either from the size, or the numbers on it.

I couldn't get the casing apart, I was sure that it would break, but as you don't want the front bearing, you could warm the casing round the bearing and try.

Of course, you won't be able to drive the car until the alternator is replaced, and you won't be able to exchange it in pieces.

If it suddenly breaks, go back to the last thing that you did before it broke and start looking there :)

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08 Mar 2016 13:24 #163496 by Decklandpt
Replied by Decklandpt on topic alternator squealing
so, drove it to work today, no noises or squealing, guess i'm gonna be carrying that can of wd-40 with me for a week till i go to the mechanic. damn schedules, cant get off work at a decent hour

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