Alternator repair kit.

mick the builder · Dec 21, 2019

Has anyone on tonight done this and what special tools would I need. Not the landy but the wife's swift. A bearing or pulley keeps seizing and throwing belts. Had it ' overhauled ' over here which means a shot of wd but will have to change or repair myself.

frog hopper · Dec 21, 2019

Never done it myself, but at a minimum I think you will want a bearing puller, (and a bucket of confidence)

Disco1BFG · Dec 21, 2019

I've done a few alternators - did one off a generator the other day, actually. A Lucas Marelli A127, which is quite easy.... provided it's done in the right order - which in this case means taking the brush holder out before trying to split the case ..... new bearings, and brush holder, regulator and rectifier were about £22 IIRC...

My point is that knowing how it comes to bits is, IME, the hard part .... I did a Ni$$an FLT one years ago that was a complete cow, due disassembly being some considerable distance from intuitive

Throwing belts is usually the nose bearing - which is usually a standard ball race - a 62042RS or similar - maybe a fiver for a quality one over here

There's probably a vid on the tube of someone doing whichever alt is on the swift - or post some pics and I'll have look

..... what could possibly go wrong

Special tools wise - just patience really - the front cover is probably as fragile as they come, and the shaft and the bearing and the cover will all be stuck together with crud - so it'll need to come apart slowly with a lot of decent penetrating oil - depending on the Alt, the rear bearing is probably a needle roller, and will probably push out either into the case from outside, or out of the case from inside - a new cap & seal is normally in the rebuild kit..... reg and rect will be held in with M3 or M4 bolts - which I usually replace for convenience.....

Scooby22 · Dec 22, 2019

Many modern cars have a alternator fitted with a clutched belt pully, these can fail and throw the belts, Suzuki have this type of pully, so the chances are it is just the front pully that needs changing.
https://www.directautoelectrical.co...geveRLQUZ7FHWI5mIVhKgGWqz4dhLXPsaAsgKEALw_wcB

lynall · Dec 22, 2019

Scooby22 said:
Many modern cars have a alternator fitted with a clutched belt pully, these can fail and throw the belts, Suzuki have this type of pully, so the chances are it is just the front pully that needs changing.
https://www.directautoelectrical.co...geveRLQUZ7FHWI5mIVhKgGWqz4dhLXPsaAsgKEALw_wcB

Need special tools to change them pulleys

mick the builder · Dec 22, 2019

lynall said:
Need special tools to change them pulleys

Cheers lynal, I've seen the tool required for that. It comes up when you start searching as what people also bought. I'll have to take old one off and see. Might try and count splings rather than buy a complete kit which I'll only use once.

mick the builder · Dec 22, 2019

Scooby22 said:
Many modern cars have a alternator fitted with a clutched belt pully, these can fail and throw the belts, Suzuki have this type of pully, so the chances are it is just the front pully that needs changing.
https://www.directautoelectrical.co...geveRLQUZ7FHWI5mIVhKgGWqz4dhLXPsaAsgKEALw_wcB

Thanks scooby, I assume it will have a part no stamped somewhere on it.

mick the builder · Dec 22, 2019

Disco1BFG said:
I've done a few alternators - did one off a generator the other day, actually. A Lucas Marelli A127, which is quite easy.... provided it's done in the right order - which in this case means taking the brush holder out before trying to split the case ..... new bearings, and brush holder, regulator and rectifier were about £22 IIRC...

My point is that knowing how it comes to bits is, IME, the hard part .... I did a Ni$$an FLT one years ago that was a complete cow, due disassembly being some considerable distance from intuitive

Throwing belts is usually the nose bearing - which is usually a standard ball race - a 62042RS or similar - maybe a fiver for a quality one over here

There's probably a vid on the tube of someone doing whichever alt is on the swift - or post some pics and I'll have look ..... what could possibly go wrong

Special tools wise - just patience really - the front cover is probably as fragile as they come, and the shaft and the bearing and the cover will all be stuck together with crud - so it'll need to come apart slowly with a lot of decent penetrating oil - depending on the Alt, the rear bearing is probably a needle roller, and will probably push out either into the case from outside, or out of the case from inside - a new cap & seal is normally in the rebuild kit..... reg and rect will be held in with M3 or M4 bolts - which I usually replace for convenience.....

Cheers mate. I watched a couple on the tube. My luck with taking things apart with springs involved isn't good.at the moment, it seems to be charging ok just the usual screeming belt in the damp mornings. It's for that reason, I might try and just change belt pulley which a special tool is needed.

lynall · Dec 22, 2019

mick the builder said:
Cheers lynal, I've seen the tool required for that. It comes up when you start searching as what people also bought. I'll have to take old one off and see. Might try and count splings rather than buy a complete kit which I'll only use once.

I remember a car mech showing me one years ago! and I had no clue what it was until he explained about alt freewheel pulleys, new one on me at the time.
Since then have heard about it many times on fords and vag motors.

Scooby22 · Dec 22, 2019

mick the builder said:
Thanks scooby, I assume it will have a part no stamped somewhere on it.

I would think so but I don't think you will have any problems finding one by just putting car details in a search.

Alternator repair kit.

mick the builder

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frog hopper

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Disco1BFG

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Scooby22

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lynall

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mick the builder

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mick the builder

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mick the builder

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lynall

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Scooby22

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