fiskerendk
New member
Hi,
I have this KAD42 that makes a knocking sound.
Im pretty new to marine and Volvo Penta engines, and I have not much experience with diesel engines.
However it sounds bad to me, and from my experience with gasoline engines it could be a problem with a rod bearing. But also the sound is very constantly, no major changes in sound if its idle or under load.
And that challenges me a little, I have heard some warn rod bearings in my time with BMW.
But sound did varies as load increases or decreases dramatic making it more a rattle sound like than a knock.
But here its always a knock from the first fire up and down in rpm and with or without load.
I have by loosen the fuel lines narrowed it down to be at cylinder 2.
I have uploaded a video to youtube as can be seen here:
https://m.youtube.com/watch?v=O0Wt08c_fsQ
Anyone have an idea to further throubleshooting or can tell me what it certainly is?
Best regards
Thomas
I have this KAD42 that makes a knocking sound.
Im pretty new to marine and Volvo Penta engines, and I have not much experience with diesel engines.
However it sounds bad to me, and from my experience with gasoline engines it could be a problem with a rod bearing. But also the sound is very constantly, no major changes in sound if its idle or under load.
And that challenges me a little, I have heard some warn rod bearings in my time with BMW.
But sound did varies as load increases or decreases dramatic making it more a rattle sound like than a knock.
But here its always a knock from the first fire up and down in rpm and with or without load.
I have by loosen the fuel lines narrowed it down to be at cylinder 2.
I have uploaded a video to youtube as can be seen here:
https://m.youtube.com/watch?v=O0Wt08c_fsQ
Anyone have an idea to further throubleshooting or can tell me what it certainly is?
Best regards
Thomas
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