Timing belt itself is probably about $35 or so from the dealer...maybe a bit more, but not much more. from fcpgroton.com it's $27. This is for the one with the auto tensioner.... I assume with a '98 S70 you have the same one that I do. Make sure you get the right timing belt. Believe '98 was when the year was split between the old belt (mine...up to engine #1266127, found on the timing belt cover on a sticker) and new, longer one for the manual tensioner.
In trying to determine which one I need I found two numbers on the passenger side of my engine (timing cover). A "Serial #" and a "Part #," which do I reference to make a determination as to which belt I need? The Part # is 6821209 and the Serial # is 1147076. There is also a seven digit number on the silver plate mounted on the front of my engine, reading 1270568... does that happen to be it? To many #'s...!<BR><BR>
<i>Modified by echristodo at 8:24 PM 4-23-2006</i>
It's the serial number you found....1147076 I believe...can you verify when it was made...should be a date on panel when you open your driver's side door. First half of the year...in other words before July, from what I've read will take the older belt for the auto tensioner.
I don't know...that's right on the margin. I'd open the timing belt cover to verify. This is the older type (for automatic tensioner) timing belt tensionser pulley:<br> <IMG SRC="http://www.fcpgroton.com/images/9135036.gif" BORDER="0"> <br>The Auto tensioner belt uses a Timing Belt Tensioner Dampner and a Timing Belt Tensioner Pulley, where as the manual (newer type) uses the same Timing Belt Idler Pulley with a Timing Belt Tensioner (but not like the pulley above). Hope this helps. <p><BR><BR>
<i>Modified by MadeInJapan at 9:25 PM 4-24-2006</i>