idle tickover 940 tdi auto

[jpliddy]

hi all i have just adjusted the rev tickover on my 940 tdi auto 1995 to just over 900 revs can this cause any problems i did this by adjusting the slide pin with the ball end pin with the nut underneath.
engine runs a little higher at col start too now but soon drops back to 900 plus revs.
reason i have done this it stops my alternator belt from bouncing so much that the life of the belt is shortened so much and teeth start to come of the belt .
its been doing this for a long time so thought i would try try to fix it .
i only moved this pin bout 4 mm .
any comments most welcome

[jpliddy]

hi guys still hoping some one will give me some advice on my comments
regards jim

[RedArrow]

Idle RPM should be around 750-775, I think.

Check the alternator bushings and replace them if necessary. It is available very cheaply.

[jpliddy]

hi red arrow thanks for your reply where are the alternator bushes do i have to strip the alternator down for this job?

[RedArrow]

The brushes? or the bushings?
?
none of those is a terrible job. You will figure it out, just look carefully at those detailed pictures and you will be confident doing it.

http://www.volvooemparts.com/a/Volvo_1986_74024l-Turbo-Diesel/_51513_5701050/Generator-ac/GR-59946.html

[jpliddy]

thanks again red arrow will let you know how i get on
regards jim

[jpliddy]

hi all
i have replaced the 4 bushings and its a vast improvement not perfect but a lot better thanks for all support