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Project: Volvo V70 Timing Belt Change 4 to 6 hours

The V70 Timing Belt Change can be done without removing the crank pulley.

C@lvin wrote:

First of all, this is my first time doing a TBelt.

I’ve been using VADIS instructions and some of Volvospeed’s instructions for the 850 and talked to MIJ a couple of times.

I did go clockwise 1/4 turn from when the marks lined up and then back before removing the belt.

I had a heck of a time getting the new belt on and the marks lined up with the tensioner adjusted properly. I had to do it over about 5 times to get the tensioner right and the marks all lined up.

After this last time, on the crank, the mark is in the marked sprocket “valley” but to one side of the valley (before I took it all apart it was right in the middle of the valley. On the cams, they are lined up right on the mark.

Anyway, after redoing this so many times and adjusting the cam pulleys a sprocket one way or the other several times, I am pretty apprehensive about starting the car.

The last time I redid it, I also ran the crank 1/4 turn past on the mark and then back before removing and readjusting the belt and tensioner.

My quesion is, if it’s not lined up right is there a way to tell without taking the valve cover off and before trying to start the engine? I’ve rotated the crank about 6-8 time and I don’t feel anything (except the compression – left the plugs in) and I dont’ hear anything (metal clanking or scraping). Does that mean it’s OK?

Thanks in advance!

tjts1 wrote:

” just did the timing belt on a 2002 S40 in my garage yesterday afternoon without a cam alignment tools. Replaced all the pulleys except for the water pump. The easy way to replace the timing belt is to get some whiteout. Once you have the cams aligned with the markings on the cam cover, draw a line across the timing belt and across the cam gear. Do this on both the intake and exhaust cam and the crank pulled and also draw an arrow on the belt to mark the direction of rotation. I didn’t remove the crank pulley. You can wiggle the T belt if you’re careful with the pulley in place. Once removed, place the new and old belts on top of each other and transfer the markings onto the new belt, keeping the number of teeth between the markings the same. Then replace the pulleys and tensioner and reinstall. With the white lines on both the belt and the pulleys it makes the whole process fool proof. When I have the new timing belt properly installed I used this procedure on the tensioner.
http://volvospeed.com/Repair/s40_timing_belt.html
Scroll all the way down. The whole process took about 3 hours including removing engine mount and replaced the serpentine belt tensioner. So far I’ve used the whiteout trick on a 960, 850 and the S40. It should work on every whiteblock.”
 
 

V70 Timing Belt Change

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4 Comments

What is the size of the crank pully nut? Am I getting close @31mm ?

chris riggs says:

can I turbo a volvo t5 3340 got it out of a station wagon nonturbo putting it in n 850r turbo

my volvo s70 1998 5 cylender doest work bcs well can find the right diagram to set up the timing right motor come is B3340 can anyone help me with the right diagram

Gale Tyler says:

Had some real fun doing my 02 S60 T5, it’s not too bad once you understand what they want. When you rotate the engine clockwise to align the marks and go 1/4 turn past, then return to the marks as you turn counterclockwise, I believe the only thing you are doing is putting the slack on the normally tensioned side. This allows you to slacken off the tensioner and have room on both sides to position the belt. If you did not do it this way, it will move eomething as you install the new belt. There is no way to get the belt on the tension side in the same place without moving something. You just can’t get it that tight. I blindly proceeded with the instructions, it went on very easily, considering… When I tensioned it back up everything stayed put. I don’t get the part about the CVVT being what you have to reset internally as I’ve read in other posts. Makes no sense. If you were to magically remove and replace a belt without moving anything the CVVT could not be disturbed. I hope this helps. God, I have changed belts on just about everything and still learned something on this car. I may incorporate the 1/4 backup on all of them now as it makes life a lot easier.

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