1998 V70 Timing belt, cylinder head work 330k miles!

5rivers · Post by **5rivers** » 12 Jul 2015, 11:25

For those of you wondering, abscate I think meant to say thank you in Mohawk which is spelled
Nia:wen kowa (with the 'k' sounding like a 'g' as in the word 'go'). Glad you found the bolt!!

: Cam cover with gasket material; Cam cover with gasket.jpg (123.5 KiB) Viewed 872 times

I have the camshaft cover bolted on and all 40 bolts torqued to 13 ft lbs!! Now the question is, how far from the outside of the cover do the two larger seals (located next to the camshaft pulleys) need to be? I have them both in .25". Do they need to be tapped in more than that? Appreciate all recommendations!

: intake cam seal; intake cam seal.jpg (95.27 KiB) Viewed 872 times

: exhaust cam seal; exhaust cam seal1.jpg (74.98 KiB) Viewed 872 times

: intake cam seal2; intake cam seal2.jpg (115.3 KiB) Viewed 872 times

: exhaust cam seal2; exhaust cam seal2.jpg (103.08 KiB) Viewed 872 times

5rivers · Post by **5rivers** » 12 Jul 2015, 15:26

I found another website with a slew of great pics of removing cam seals, timing marks, etc., including one of a cam seal after installation. Take a look:

http://www.atthetipwebs.com/technologyi ... s70glt.htm

Looks like the ones I installed on my car are in far enough. But if you think they need to go in just a tad further, do let me know asap! TIA

Post by **erikv11** » 12 Jul 2015, 21:09

On the cam seals you will find the full range of opinions from exactly flush with the outer surface to all the way in. All of those seem to work fine, as long as the seal is straight. I go for flush.

5rivers · Post by **5rivers** » 13 Jul 2015, 05:35

Thanks, Erik!!

5rivers · Post by **5rivers** » 13 Jul 2015, 06:48

Greetings!
I have another question, this time about the camshaft position sensor (CPS). When I attach it to the rear driver's side camshaft, there is only one way the sensor goes on, but I wondered if there was also a bracket for a hose that is positioned underneath the sensor housing, so that when the bolt is inserted, both the sensor and the bracket are secured at the same time. Or does that hose bracket attach to the "A" shaped motor support. The bracket is very shiny, so to me it made sense that it is placed under the sensor and not exposed to the elements.

While I am here, a second question is about the positioning of the rotor when attached to the bracket at the end of the intake driver's side camshaft. The bolt holes, like the pulley side of the camshafts, are positioned either one bolt on top, two on the bottom OR two on top and one on the bottom. I can't seem to locate any pics that would show the proper location of this bracket and the one bolted on with the CPS. Appreciate your help on these two dilemmas!

Post by **Ozark Lee** » 13 Jul 2015, 08:20

The cam position sensor housing is bolted on by itself with nothing under it. It is fairly important that the sensor be bolted on so that it remains absolutely flat against the head. Be careful that the cam position trigger is properly aligned before you torque it down. It doesn't really fit right but some have managed to get it bolted on upside down.

The rotor will only go on in one direction and it will do so effortlessly. I think you can start a screw with it not positioned properly but the others won't line up.

...Lee

Post by **MrPc** » 13 Jul 2015, 09:21

I'm not sure of your v70 is the same as my '96 850, but on mine the lower camshaft sensor bolt also attaches a bracket that positions the turbo vacuum hoses. Like Lee says, the bracket is on the outside of the CPS, which fits up snugly against the head.

5rivers · Post by **5rivers** » 13 Jul 2015, 20:12

Thanks, Lee and MrPC for your insight and knowledge on the V70s and 850s!
Have attempted to install the timing belt this evening, but the exhaust camshaft keeps moving! Looks like I need to stabilize the rear parts of the camshafts with the grooves!! Will try again tomorrow. Then I can situate the brackets, rotor, CPS, etc to the rear sections of the camshafts.
Thanks, again!

Post by **songzunhuang** » 14 Jul 2015, 00:44

Man, I just read through all 12 pages of this post. It's like a novel where I am waiting for the big climax (starting of the car). It's got me riveted. Lol! This is become a group effort.

5rivers · Post by **5rivers** » 14 Jul 2015, 06:48

That is the nice thing about this site - it has a lot of experienced Volvo owners and mechanics (shadetree and pro) that have no qualms about sharing what they know, the do's and don't's; and the tutorials are equally as priceless! Hi-5's to all who have contributed

1998 V70 Timing belt, cylinder head work 330k miles!

Re: 1998 V70 Timing belt, cylinder head work 330k miles!