My 83 SD is not timing right?

[jgreek]

I took the valve cover off, and i alligned the timing slot on the chain, but i cannot turn the engine by hand. it seems that the chain is stuck. it turns 10-20 degrees either way, but she's not loose to go around. im thinking maybe the chain gets stuck at the bottom. any ideas?

[boneheaddoctor]

I hope you didn't turn it backwards.....

[jgreek]

i think i have. now what do i do?

[boneheaddoctor]

Originally Posted by jgreek

i think i have. now what do i do?

the tensioner would take the full load rahter than take up slack and could jump time I believe...you are saying the engine is binding up?

[jgreek]

yes. With the chain in place, its binding. It's not going either way. it only moves a few degrees left and a few degrees right. and then it clicks and i don't want to force it or use the starter.

[boneheaddoctor]

Originally Posted by jgreek

yes. With the chain in place, its binding. It's not going either way. it only moves a few degrees left and a few degrees right. and then it clicks and i don't want to force it or use the starter.

good idea don't force it at this point..sounds like it may have jumped time on you one tooth may be enough for valves to contact pistons..I've not had the timing chain out on this engine but hang in there someone who has will pick it up from here soon......

[jackw3306]

JGreek,

I have the same problem. Found a rebuilt engine on ebay. Had it installed but installer couldn't get it started. Turned over but wouldn't start. Sent it to MB dealer to set IP timing. When I got the car back engine was locked up. Dealer blamed installer, installer blamed dealer. Engine still locked up. Would appreciate if you could share what you find.

Thanks,

Jack Wendel