alternator help

[TheCake]

hi all my alternator has been a bit dicky for quite some time but ive not had time to properly look into it.
the issue is it will only kick in after its been revved over 2500 and will run fine till i restart (belt and pulley move but doesnt charge), so question is, is my alternator fugged or would a new regulator fix the issue if so can i slap any make regulator on it or do i need to match say lucas to lucas for example as i have no idea what make alternator i have in there. dont think its original as it looks like there is a bolt missing. how do i find out? ideally without removing
2010 2.2 fwd single battery
thanks for any advice

[motorman116]

Modern day alternators have clutches on the pulley, sometimes these can fail and cause the problem that you are having, might not be your problem but worth checking...

[TheCake]

Modern day alternators have clutches on the pulley, sometimes these can fail and cause the problem that you are having, might not be your problem but worth checking...

is that a replaceable part? or do i need a new alternator?

[knobby1]

Modern day alternators have clutches on the pulley, sometimes these can fail and cause the problem that you are having, might not be your problem but worth checking...

is that a replaceable part? or do i need a new alternator?

The alternator pulley clutch is replaceable, but a special splined puller/tool is required to do it.

Similar to this..:

https://www.youtube.com/watch?v=uKwEB9d845M

Lord Knobrot

[TheCake]

cheers knobby ill check pulley during week and if its buggered get to fitting a new one, do you know if the tool required is a 31 slot or a 33 ?
hopefully its just this. cant afford a new alternator just yet

[knobby1]

cheers knobby ill check pulley during week and if its buggered get to fitting a new one, do you know if the tool required is a 31 slot or a 33 ?
hopefully its just this. cant afford a new alternator just yet

I don't know to be honest....never counted them.

Sometimes a new clutch assembly is nearly as much as a complete new alternator....so beware of the costs etc...

Lord Knobrot

[TheCake]

a little update
been too busy to have a proper look yet but i have all the replacement parts ready just waiting for the pulley tool and some spare time to get under the van, will update as progressing

[TheCake]

update

from a while ago but forgot to post about it

checked the alternator clutch pulley is working as it should and new belts put on but the issue still persists im living with it for now as i just revv engine on startup which gets the juice going.

earths look okay though i did replace one as when trying to release nut to check the bolt sheered off (rust) but ill have to have another dive in at some point later on to check for any other issues.

seems that the alternator issue was causing other faults like the egr valve not reaching command position and lumpy idle could have been that there wasnt enough juice to run all those parts properly.

still have issues with central locking that may be tied to whatever gremlins are plagueing my alternator as sometimes i have to go right up to the cab window to get the fob to lock and unlock the van.

[knobby1]

Twin batteries..??

Lord Knobrot

[TheCake]

Single battery
And have a little solar panel plugged in to keep her trickle charging which has helped