Volvo TAMD41 belt tension

[alancollins]

The alternator drive belts on my TAMD41P engine have become a little slack. According to the hand-book I need to loosen the two bolts securing the alternator, then turn the adjusting nut to get the right tension. Apart from the fact that I am working by feel as all the bolts are tucked out of sight, I can't work out how the "adjusting nut" is supposed to move the alternator. Can anyone explain how this works?

 

[rlw]

I had AQAD41's in an previous boat which is the same base engine and there was no adjusting nu. Needed to use hand power or a short lever to put tension on the alternater belt by pression the alternator upwards. Not a very practical arrangement but was ok once you got the hand of it. My current KAD 44's do have a tension screw. As it is the same base engine you might be able to retrofit this from memory the tension bracket is the same. Works a lot easier.

 

[volvopaul]

The alternator drive belts on my TAMD41P engine have become a little slack. According to the hand-book I need to loosen the two bolts securing the alternator, then turn the adjusting nut to get the right tension. Apart from the fact that I am working by feel as all the bolts are tucked out of sight, I can't work out how the "adjusting nut" is supposed to move the alternator. Can anyone explain how this works?

A 41 doesn't have an adjuster screw as per the 44, slacken the top bolt , slacken the lower bolt and use a suitable bar or lond screwdriver to force the alternator away from the engine then tighten the lower 12mm headed bolt, then the top bolt.

 

[Plum]

No alternator adjusting nut on my TAMD41P. Find a piece of wood to leaver/wedge the alternator then tighten the bolt that goes through the slot first, then the other two. The nuts are welded so no need for a spanner to hold them, even if there was enough room for another hand.

Www.solocoastalsailing.co.uk

 

[alancollins]

Thanks folks. The Volvo hand-book covers several engines and we have to guess which one they are referring to.

 

[boatmike]

I have twin 41As Alan and concur that there are no adjusting screws. I use a long screwdriver underneath the alternator and maintain upward tension while doing up the bolts. I might add that I am generally lying on my back in the bilge under a cupboard while doing so ...........

 

[alancollins]

My problem is the opposite. I am hanging upside down through a narrow hatch above the front of the engine, while repeating to myself "boating is fun, boating is fun........."