Alternator needs replacing anything else

[stefzilla]

Hi all

Alternator gave up yesterday and have a replacement ready to go in. Is it a difficult job? Also will I need anything else the belts only been on 1000 miles will that still want doing? Is there a guide anywhere on doing it?

Thanks

 

[Chrisgti6]

I'd personally have no issues reusing the belt if it's that new. How about the tensioner?

 

[stefzilla]

I'd personally have no issues reusing the belt if it's that new. How about the tensioner?

All got done 1000 miles ago.

 

[hipwell]

Id probably use it again but for the sake of 20 quid it might be worth chucking a new one on.

Fairly simple job once you've worked out how to detension the belt with a jubilee Clip as getting a tool in there other than the proper serpentine tool is more or less impossible

 

[Darren S]

Is the alternator the correct one? The Renault dealership that did mine took three attempts to fit the correct one. Even that failed a few years later - lol.

 

[JamesBryan]

For the sake of £20 I'd stick a new belt on.

 

[stefzilla]

Id probably use it again but for the sake of 20 quid it might be worth chucking a new one on.

Fairly simple job once you've worked out how to detension the belt with a jubilee Clip as getting a tool in there other than the proper serpentine tool is more or less impossible

Is the alternator the correct one? The Renault dealership that did mine took three attempts to fit the correct one. Even that failed a few years later - lol.

Pulled one out of my other 172 that I knows working so I assume its the correct one lol I was hoping I could just do the same again but this time put the working alternator in and just slip belt back over and away we go rather than put whole new belt on etc or is it not that simple ?

 

[hipwell]

Is it a cup with no A.C. or normal 172? Cups use a different alt and setup

 

[stefzilla]

Is it a cup with no A.C. or normal 172? Cups use a different alt and setup

Both normal 172s and same age.

 

[hipwell]

Straight swap then. Should be easy enough. Like I say, hardest part is taking the tension off the belt. I usually use a nice big jubilee clip around the tensioner as I haven't got the fancy tool or made my own.

Itl be difficult swinging the alternator back in place with taking the tension off the belt

 

[stefzilla]

Straight swap then. Should be easy enough. Like I say, hardest part is taking the tension off the belt. I usually use a nice big jubilee clip around the tensioner as I haven't got the fancy tool or made my own.

Itl be difficult swinging the alternator back in place with taking the tension off the belt

Yeah I used a jubilee to take the other one of and wasn't to bad. Only thing I am worried about is resetting the tension on the belt as its not something I have ever done which is why I am not to keen to take the belt off completely . Everything else seems straight forward. I will pick a new belt up tomorrow just incase.

 

[hipwell]

It's an automatic tensioner. Just release the jubilee clip when everything is done and job done

 

[stefzilla]

It's an automatic tensioner. Just release the jubilee clip when everything is done and job done

Ideal feel a lot more confident in doing it now Thanks for your help!

 

[oreA]

I replaced my belt and alternator about a month ago, but the bearings on the replacement alternator were duff so had to do it again.

This time, rightly or wrongly grimacing, I replaced the alternator without compressing the tensioner spring, I just carefully undid the bolts fixing the alternator and released the tension that way, on refitting I gently levered the new one in place and refitted the bolts.

 

[stefzilla]

All done today. No real complications other than the terminal bolt didn't want to undo but got there in the end. Thanks everyone for their help