I have a 1990 Cadillac Seville Roadster and am looking for a schematic for removal of the timing chain cover. Any help will be appreciated

I have not done that on a 90 seville, but i found a chilton manual to be a necessity for engine work. You can do haynes too. You can buy them at the local auto parts store such as autozone murryas etc.

You have a 4.5 and it's nothing special. The problem is more gaining access than the actual R&R procedure. I believe the last time I did one, I dropped the engine cradle slightly to make more room. Email me at: Katshot@netzero.com and give me your email info. I'll send you a PDF file with the procedure if you want.