I finally got around to performing the tune up on new-to-me '89 760T. When I removed the turbo inlet hose to replace the air filter I found that the screen on the output side of the AMM was pushed into the AMM body, torn, and frayed. I replaced the screen with one from a spare I had on the shelf. I am wondering if this is just from mis-handeling the last time someone replaced the filter or if there is some other cause. i.e. backfire through the throttle body? Is this anything to worry about?

Side note: The Bosch distributor cap I took off had a label stating that it was a VOLVO Remanufactured Part. I didn't know VOLVO remanufactured any parts. Also I was sort of surprised that this was not the original distributor since the car had 106,000 miles when I bought it. The Bougicord ignition wires that I removed were dated 07-97.

Thanks in advance.
Dan

Some hack probably mangled it trying to do the air filter in it at one point. That is a little pre-mature for a distributor replacement but someone probably replaced it because the seal was leaking in the shaft. There are two seals, one around the housing and shaft (O Rings) and one around the shaft where it goes up and into the dist. This one is a pain in the ass to change and people will often sell complete distributors to fix it.


Rule 308