laker82
Member
- Joined
- March 28, 2015
- Messages
- 46
- Reaction score
- 2
- Year, Model & Trim Level
- 02 explorer xlt
Well I finally got back to installing the 4.0 liter in the 02 explorer. I had turned it over by hand through 4 cycles with no binding or problems. Fired on first crank and then nothing. Pulled valve covers and the right bank cam was not turning.
Pulled engine again.
Found a chain link had come off and the Al gear on the rear of the jackshaft was in 5 pieces, jackshaft is ruined.
Really not sure if link came off first or gear shattered first but I think it was the chain link as it is dented by a tooth.
Anyone else ever have a new chain fail? Or am I just special? The rest of the links on the chain look very lightly staked.
Was the original gear steel or AL?
Pulled engine again.
Found a chain link had come off and the Al gear on the rear of the jackshaft was in 5 pieces, jackshaft is ruined.
Really not sure if link came off first or gear shattered first but I think it was the chain link as it is dented by a tooth.
Anyone else ever have a new chain fail? Or am I just special? The rest of the links on the chain look very lightly staked.
Was the original gear steel or AL?