4 replies to this topic

[Showtime]

A couple questions about timing belt replacment on an 01 V70.

Do all 01's have the hyd. tensioner? Should it be replaced with the belt?

Is the water pump easy to change if you are doing the belt anyhow?

How close is an 01 V70 to the 850 outlined in Bay 13?

Thanks!

Dave

[howardc64]

A couple questions about timing belt replacment on an 01 V70.

Do all 01's have the hyd. tensioner? Should it be replaced with the belt?

Is the water pump easy to change if you are doing the belt anyhow?

How close is an 01 V70 to the 850 outlined in Bay 13?

Thanks!

Dave

01s have a mechanical tensioner and yes it should be replaced along with the pulley. They sell 3 piece kit that includes the belt for this ($130 or so at fcpgroton.com, you might have to call because I'm not sure the 01+ kits are on the website). I read the spinning mechanisms are the more common failure points when their internal grease leaks and seize rather than belt breakage.

Here is the link to all the directions (bay 13 included) and my experience.

http://www.freewebs.com/howardsvolvos/engine.htm

[Rule .308]

As stated, all of the '01 cars will have the mechanical tensioner in them. The 850 and S70 motors will be very similar with the exception of the tensioner and how it is set up. Now would be the best time to change out the water pump if you plan on it. The pump is not too dificult with the belt out of the way, do the pump while you have the tensioner out too as it will facilitate it.

On the mechanical tensioner:
Install the NEW tensioner with the adjuster ear at 10:00
Install the new belt
Rotate the crankshaft clockwise just enough to place tension between the intake cam gear and the crank
Rotate the adjusting arm on the tensioner clockwise so that the indicator passes through the upright ears from left to right.
With the indicator past through the ears and off to the right turn the adjuster counter clockwise and bring the ear back into the window from right to left until it is centered between the ears, the adjusting arm should now be about 7-8:00.
Hold the adjuster stationary while you tighten down the retaining bolt that holds it all together.

Make sure that you use a new idler bearing and tensioner when you do it. Make sure that you do your water pump while you have the belt and the tensioner out of the way. Having the tensioner out of the way facilitates getting the pump in and out and it also prevents you from getting coolant on your new belt because the new belt will not be installed yet.

Mark

[Showtime]

As stated, all of the '01 cars will have the mechanical tensioner in them. The 850 and S70 motors will be very similar with the exception of the tensioner and how it is set up. Now would be the best time to change out the water pump if you plan on it. The pump is not too dificult with the belt out of the way, do the pump while you have the tensioner out too as it will facilitate it.

On the mechanical tensioner:
Install the NEW tensioner with the adjuster ear at 10:00
Install the new belt
Rotate the crankshaft clockwise just enough to place tension between the intake cam gear and the crank
Rotate the adjusting arm on the tensioner clockwise so that the indicator passes through the upright ears from left to right.
With the indicator past through the ears and off to the right turn the adjuster counter clockwise and bring the ear back into the window from right to left until it is centered between the ears, the adjusting arm should now be about 7-8:00.
Hold the adjuster stationary while you tighten down the retaining bolt that holds it all together.

Make sure that you use a new idler bearing and tensioner when you do it. Make sure that you do your water pump while you have the belt and the tensioner out of the way. Having the tensioner out of the way facilitates getting the pump in and out and it also prevents you from getting coolant on your new belt because the new belt will not be installed yet.

Mark

Thanks for all the info...just what I was looking for.

_Dave

[Showtime]

One more question: When you are tightening up the belt, it calls for moving the crank to do this. How does this not screw up the valve timing?

-Dave