'92 Bonny SSEi
Started her up yesterday afternoon... (and fortunately I was parked in my own driveway!). Heard very loud rattle/grinding noise coming from the engine. Scared out of my wits, I shut her down immediately, changed my shorts and tried again a few minutes later. Same loud noise occured again. Opened the hood and listened for a second with the engine running.... Sound seemed to be coming from the belt/pulley/SC area of the engine. Placed my hand on a few different areas of the engine (still cool yet as I just started her up) but couldn't feel any real vibrations from any specific area. Pulled her into the garage and shut her down again. Jumped in the alternative vehicle (we won't go there...) and took off to my 'appointment'.
This morning I tried again, same loud noise from the same area. Shut her down and pulled off the outside belt (Alt./PS/etc.). Started her up... same noise. Shut her down and pulled the inside belt (SC/AC/WP/etc.). Started her up... noise went away.
(The following is para-phrased from another post I found while doing a search... it seemed to describe my problem) ** Found that with the belt off you can rotate the pulley on the SC shaft about 1/8 " before it seems to connect inside. If you rotate it back and forth quickly you can duplicate the rattling sound. It is not loose in any other direction and does not leak. **
Inside belt pulleys and the Water Pump are new... less than 500 miles. AC compressor new within about 5K miles. New belt was repleced with the WP ordeal. Only thing not touched is the SC... other than to flush and fill the SC oil about 15K miles ago.
So I'm thinking it'* the SC, correct?
Do I need a new SC or can I rebuild this one?
How do I know if I have a M62 vs M90, Series I vs Series II, Magnuson vs Eaton, anything else?
Doesn't look like too bad of a job to R&R.
Thanks guys... Ace