93K on my 2000 S80 T6

scott did you cycle your timing belt yet? if so, what did that service run you $ at the dealer (if a dealer did the work)..?

How did you change spark plugs? Do you need to unscrew 7 bolts on the plastic covers? One seems a timing belt cover? How did you take out the timing belt cover? I bought a used 99 S80 non-turbo several days ago. I got all kinds of messages now like ABS, STC, Power steering, Emission service. I feel really unlucky this time. Thanks in advance.

sounds like a xmas tree....i used to hate that type of stuff...

Yes on the bolts, since mine is Turbo, I also had to remove the turbo tubes, but all is easy to do. There is a timing belt cover, left side - but it comes off easy. Once this cover is removed, there is a bolt per plug you will remove and pull off the wires. This is also easy. It's not a hard job, but will take a 2-3 hours the 1st time you do it. I can do now in an hour.

sc

I did not put a new timing belt on.. but I realize I will need to / want to do this soon. I have not looked into the dealer doing this, and not sure I would due to labor rates.. I'd check out an independent shop first and compare prices with the dealer.

sc

is the s80 an "interference" motor?

Not sure I know what a "interference" motor is..

sc

One where the pistons will hit the valves if the timing is wrong / absent. It makes a big difference to the cost of fixing a broken timing belt / chain!

I think most engines are nowadays. My Peugeot certainly was.... :-(

Yes, you don't get 268 hp out of 2800 cc's without using an interference design. What I don't understand is how they make that motor put out so much torque down low. It drives like a big V-8 but it is smoother because it's an in-line 6. Anyway, the timing belt should be changed every 105,000 miles on a S80.

Spanky

interference motor means there is a whole lot of $$ involved, if the timing belt goes...less room in the combustion chamber...and valves collide w/pistons in the event the timing belt goes...lots of damage, lots of $ to fix...some volvo motors are and some are not...every drive of high mil volvos ( > 50k miles) should know (imho) if their motor is or isn't.. ...

interference motor means there is a whole lot of $$ involved, if the timing belt goes...less room in the combustion chamber...and valves collide w/pistons in the event the timing belt goes...lots of damage, lots of $ to fix...some volvo motors are and some are not...every drive of high mil volvos ( > 50k miles) should know (imho) if their motor is or isn't.. ...

Based on the above, I guess it's an interference motor. I'll start checking around the independent shops for the cost of a timing belt replacement.

"interference motor" just another way of saying "smaller, more effecient" combustion chamber...? with less room...?

"down low torque" is a nice thing, ea? the volvos can deliver some strong, clean, consistant torque and power.......esp if the car / power is set up and "dialed in".....

i have (and am "now") "pushing" my 1993 940t to the point of going through two different automatic trannies.....that is proving to be the "weak point" on my volvo...i did a dyno run and i am hitting the high

Stick shifts are made for people like you. My autos last 180,000 miles with no problems and keep on going. I pull trailers, live in the mountains, and do all kinds of driving. I accelerate briskly but don't burn rubber.

absolutely not. It means that if the piston can smash the valves if the timing is off such as when a timing belt breaks. Some very inefficient engines have interference engines.

yea...if this tranny goes...i may move to a manual... the auto is nice when working properly...fast and smooth.....