Topic: Need a little help.

[BlackburnD]

So I began tearing apart my 550 engine. I have an issue or two I'm not sure how to deal with. I was trying to remove the cam shaft. I loosened the adjuster as far as it would go clockwise. I then Tightened the lock nut so it would loosen the chain. Unfortunately it didn't work. The chain is still really tight. I tried to turn it looser but to no avail. So then I thought I would just remove the cam gear. Engine wouldnt turn over all the way so I pulled the intake manifold to check valves and of course one is broken. I can only loosen one cam gear nut and cant get the other. I thought about trying to removed the sump and remove the connecting rod cap for that piston, but I am not sure that is really going to work either. Any suggestions.

[hansen]

did you pull the spark plugs? makes the engine easier to turn.  I just tore down my 400, and found turning over the engine with a socket on the "Timing nut" on the right side was the way to go, I also had to remove the cam gear nuts to get the shaft out. are you sure the cam chain adjuster is not froze in position?, it should give you a little slop when loostened- but you still have to pull the gear to remove the cam.

good luck.

[Will]

you may want to assume that the cam chain is shot, so why not just cut the chain, end your problems and order up a fresh one? If you are rebuilding the top end, a new cam chain may already be on your list.

[BlackburnD]

you may want to assume that the cam chain is shot, so why not just cut the chain, end your problems and order up a fresh one? If you are rebuilding the top end, a new cam chain may already be on your list.

I thought about that. Hoped for another path, but Probably the easiest solution. Thanks.