560 Diesel noise

Posted by BeekeeperArt in MN on March 30, 2011 at 04:43:47 from (68.178.46.8):

Recently did a full rebuild on a D282 and it ran great for about 15 hours. I brought it out of storage this week and fired it up after not being run for about 1 month. Started and ran great but i noticed a knocking sound starting especially at idle. Not super loud but enough to notice at first. After a while it got loud enough to feel it sitting up in the seat. TOTAL PANIC and shut it down. Dropped the oil pan looking for a sucked in sleeve or spun bearing. Looked good. Pulled valve cover and inspected and checked tappet gap at .027 hot. Looked good. Started it back up and knocking still there. Got out the broomstick and started listening for the knock. Found it to be #6 injector. I have had noisy and sticky injectors before but nothing like this. This sounds like a ball peen hammer hitting. I cracked the fuel line to the injector and the motor ran rough and the knocking stopped. So the injector seems to be working fine. Checked pump timing and it is dead on. Has anyone else ran into this? Should I be concerned about it? It does have the old style injectors and I had them rebuilt by a guy in MN who knows his stuff. He won't be back from Florida till mid April. Thanks to all who respond. The help I have recieved here has saved me more time and head scratching then I can imagine!

Replies:

• Re: 560 Diesel noise pete 23 10:27:56 03/30/11 (0)
• Re: 560 Diesel noise rustred 07:48:39 03/30/11 (0)
• Re: 560 Diesel noise teddy52food 07:33:28 03/30/11 (0)
• Re: 560 Diesel noise CharlieNJ 06:39:58 03/30/11 (0)

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