Yep, Aisin makes the OEM hydraulic tensioner.bmdubya1198 wrote: ... Volvo changed the tensioner mid year 1998, and those engines still had the distributor-type ignition system, spin-on oil filter, ETM, and no variable valve timing. That all came along in the 1999 model, I've never seen a '98 with the coil-over-plug engine. My car has the mechanical tensioner, but it's the older engine.
OEM for the hydraulic tensioner is Aisin, I think.
OP- yes, you have a hydraulic tensioner. I agree with Robert, do it all. If the car is in good shape, it's definitely worth fixing it up and keeping it on the road.
No ETM in 98,that also didn't come along until 1999. Strictly a mechanical throttle in 98.






