Kubota L3250 Knocking sound

[Hhinai4]

Hi team,
I have Kubota L3250 i had over heating, i replaced water pump, head jasket and radiator cleaned, now it’s working fine. But i have knocking sound after gead jasket

replacement. Valve adjusted as per manual, and also i replaced new original injectors but the sound still there. If you guys have experience please share. Link for the sound attached.

Thanks

 

[Hoss710]

That doesn't sound promising. perhaps a bad or spun bearing that needs attention. if it were me I'd pull the pan and check rod bearings.

 

[Hhinai4]

This sound only came once head gasket replaced, might be tapet or air inside fuel injection

 

[nisaacs]

I would pull the fan belt and try it. I have had belt tensioners make that sound.

 

[Hhinai4]

I will pull fan belt, i hope that would be the issue

 

[thepumpguysc]

Loosen the injector lines 1x1..
Loosen, tighten up, move to the next..
That will narrow it down to “A” cylinder..
Next, swap the injector to the hole furthest away..
If it stays on the original cylinder at least u know where to go from there.

 

[Hhinai4]

Loosen the injector lines 1x1..
Loosen, tighten up, move to the next..
That will narrow it down to “A” cylinder..
Next, swap the injector to the hole furthest away..
If it stays on the original cylinder at least u know where to go from there.

I have replaced new original injectors, so you think i have to swap the injectors?

 

[loggin]

I have replaced new original injectors, so you think i have to swap the injectors?

Just because it's new does not necessarily mean it's good. Things are certainly not made as well as they used to be

 

[thepumpguysc]

Do u know what cylinder is knocking.??
Loosening and tightening the line will narrow it down..
THEN swap the injector to rule it out..
Btw.. internet injectors r usually junk..