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Re: engine shaking at low rpm

You have not clearly explained the symptoms. Is the engine speed unstable at low rpm (hunting, surging,rolling) or is the rpm stable but the engine is running rough due to missfire or is the engine running smooth but has excessive vibration ?

The 3126 8NM has an adjustable bumper spring in the governor to specifically smooth out unstable engine rpm problems at idle.

New member ERI
New member

Re: engine shaking at low rpm

You should need to check the alignment of engine

Contributor

Re: engine shaking at low rpm

Hi Tuti,

 

When the engine shaking, is at neutral?

 

The engine is electronic can do cylinder cutout by ET or if mechanical remove the valve cover and do cylinder cutout manually at engine RPM that its shaking to try if the problem is a bad injector.

New member

engine shaking at low rpm

I have a cat 3126ta 420hp serial 8mn is shaking at low rpm