Oerthedge21
Member
- 250
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- Location
- Northford CT
I had kinda figured this noise was normal, as I've had some other diesels that made a similar noise, but after asking a few people who said that doesn't sound right for a deuce, I got a little concerned. I searched on here some and I found an old thread about somebody's LDS (my truck also has an LDS) with a very similar noise which ended up having a melted piston. My truck is a 68 that was rebuilt in 89 and had an LDS dropped in which according to the tags was also overhauled that same year, and only has about 25k on it now. I was poking around at it while it was cooling down after I got home, and I noticed that although you don't feel anyhting by touching the block, heads ect in various places, injector lines #2,3 and 5 feel like someone is tapping on them with a hammer, while 1,4 and 6 just vibrate and shake with the rest of the engine. The difference in feel is very noticable. The knock is definitely louder when cold, and as far as I can tell is present no matter what rpm the engine is at. Anyone ever heard of something like this before? And which set of tests do y'all think would help me most here? I was gonna start craking lines and try a compression test too but I don't wanna get too far in yet since I'm relying on this truck as my daily driver for the week while I pick up another car. I'll try to post up a video of the noise soon, I don't have great internet right now so my phone isn't too keen on loading a video into here