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Timing Belt and Serp Belt Question

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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F250
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Re: Timing Belt and Serp Belt Question

Post by F250 » Tue Jul 12, 2016 3:04 pm

Being at 166K miles with no verification of the timing service EVER having been done by the original owner, coupled with having just gone through an episode of rapid oil loss (4 quarts within about 1500 miles in one month... I chose to replace the seals as well, and then discovered what I believe to have been too much wear in the hub bushing movement, so I replaced both hubs as well. Again, this is my daughter's car and she drives all over the state with her job, and I felt obligated to hit every potential leak point to minimize her vulnerability to being stranded somewhere remote.

Before removing anything, I watched a video (numerous times) of a guy showing how to mark the hubs, lock the cams, remove the hubs, and re-install the hubs back to the original markings. My problem right now is that while tracking down my torque wrench in my disorganized garage, I forgot to may mark the intake hub before I removed it, BUT I DID notice where the front side markings were positioned in its clockwise "limit" position before slipping the hub off the cam shaft. I then went back and marked that approximate position which should be within one tooth of being correctly aligned. The exhaust cam hub got appropriately marked before removal and placed back in the correct position with the new hub.

At this point, when I started the engine Sunday evening, it only took a minute for the air to purge from the fuel lines and the engine to start running smoothly, so I'm hoping that the alignment is pretty close. I have not yet had a chance to clear all the codes with VIDA and take it for a test run to validate the alignment because of the oil leak form the open hub ports. I do know, however, that there are numerical values available in VIDA which can be used to gauge how much adjustment is required, but I need to finish the belt reinstallation and do the test run to see where I am. Then I can adjust form there.
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Pete - '07 S60 2.5T, Gray FWD (Daughter's car)
My Garage includes '02 F250 7.3L Diesel w/285K, '03 Excursion 7.3L Diesel w/196K, '06 Outback Limited 2.5L w/228K, '99 4Runner 3.4L 2WD w/220K

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F250
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Re: Timing Belt and Serp Belt Question

Post by F250 » Tue Jul 12, 2016 8:09 pm

WooooHOOOOO!

SUCCESS!

The timing differential on the exhaust cam is 0-0.2 degrees, which is a huge confirmation that the marks I made at the beginning are almost dead on!

And, like I expected, the intake cam is running -11.2 degrees which is "slow" which means I need to advance the timing clockwise by several teeth.

I'll finalize my adjustments and start test driving tomorrow night.
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Pete - '07 S60 2.5T, Gray FWD (Daughter's car)
My Garage includes '02 F250 7.3L Diesel w/285K, '03 Excursion 7.3L Diesel w/196K, '06 Outback Limited 2.5L w/228K, '99 4Runner 3.4L 2WD w/220K

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F250
Posts: 126
Joined: Sat Jun 18, 2016 7:58 am
Year and Model: 2007 S60 2.5T
Location: Alabama
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F250

Re: Timing Belt and Serp Belt Question

Post by F250 » Wed Jul 13, 2016 8:10 pm

OH WELL... I spoke too soon. Can't even get it started now!

My first adjustment took me from -11.2 degrees off on the intake down to -10.4 degrees off, and that was with only a one-tooth adjustment. The next move was about 4 teeth further in the same direction, but it would not start. Then I backed off about have of that adjustment to move closer back to my starting point, and it still won't start.

I'm done for tonight. Will try again tomorrow night.
______________________________
Pete - '07 S60 2.5T, Gray FWD (Daughter's car)
My Garage includes '02 F250 7.3L Diesel w/285K, '03 Excursion 7.3L Diesel w/196K, '06 Outback Limited 2.5L w/228K, '99 4Runner 3.4L 2WD w/220K

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F250
Posts: 126
Joined: Sat Jun 18, 2016 7:58 am
Year and Model: 2007 S60 2.5T
Location: Alabama
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F250

Re: Timing Belt and Serp Belt Question

Post by F250 » Wed Jul 27, 2016 7:22 am

Done. All is buttoned up and the car is running great The final timing angle differences are only -0.1 to +0.3 degrees off Target for both cams.
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Pete - '07 S60 2.5T, Gray FWD (Daughter's car)
My Garage includes '02 F250 7.3L Diesel w/285K, '03 Excursion 7.3L Diesel w/196K, '06 Outback Limited 2.5L w/228K, '99 4Runner 3.4L 2WD w/220K

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Re: Timing Belt and Serp Belt Question

Post by abscate » Sun Jul 31, 2016 6:06 am

From Volvo Virgin to Swedish God in one month....well done F250!!

The best part of watching the kids strapping on these armored tanks and headed off is knowing the rest of the tin out there will bounce off.
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F250
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Re: Timing Belt and Serp Belt Question

Post by F250 » Sun Jul 31, 2016 4:01 pm

Everything's up and running fine. Thanks.

I'm working on a procedural write-up to compile the various inputs I received, complete with some extra pictures and a few "watch out" notes. The alignment issue will be addressed as well. I already had the cam lock tools on hand. Once I finished, VIDA indicates the the difference between Target and Actual cam positions is only -0.1 to 0.3 degrees for BOTH cams, and the engine is really running better than it was when we first got the car.
______________________________
Pete - '07 S60 2.5T, Gray FWD (Daughter's car)
My Garage includes '02 F250 7.3L Diesel w/285K, '03 Excursion 7.3L Diesel w/196K, '06 Outback Limited 2.5L w/228K, '99 4Runner 3.4L 2WD w/220K

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