Harmonic balancer weight and size November 30, 2020 11:43AM
For starters, how does the weight and size of a harmonic balancer impact the vibration
and torque output of a diesel? Is bigger always better (weight and diameter), if the crank
nose can handle it? I’ve been thinking about running a big semi truck balancer, something
with the diameter bigger than 12.5”...
Reply Quote

Re: Harmonic balancer weight and size December 01, 2020 09:50AM
The crankshaft harmonic balancer is sized to a specific set of pistons, rods, and crankshaft.
It is dialed in to that setup, similar to how the throws are balanced with the rods and pistons.

Harmonic balancers reduce the vibration and stresses in the crankshaft to reduce the chance of it breaking at high torque output. The torque output will be the same regardless of a harmonic balancer being installed.

Stronger crankshafts generally take bigger harmonic balancers. Viscous (fluid) harmonic balancers are more forgiving when it comes to tuning it to a crankshaft setup compared to a rubber harmonic balancer.

If you are using a production crankshaft I would recommend talking to fluid damper to see if they can recommend a product for you to use.

What engine did the damper come off of?
What engine is the damper being attached to?
Why not use what everyone else is using?
Reply Quote

Re: Harmonic balancer weight and size December 01, 2020 10:12AM
If we all use the sameo - SAMEO, how can new products be developed and put in service, the guys out front mostly do not use what the back of the pack,(everyone else uses), parts. LOL
Reply Quote

Newer Topic Older Topic

Author:

Your Email:


Subject:
Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically. If the code is hard to read, then just try to guess it right. If you enter the wrong code, a new image is created and you get another chance to enter it right.
Message:
Website Statistics
Global: Topics: 38,642, Posts: 229,708, Members: 3,325.
This forum: Topics: 37,067, Posts: 225,903.

Our newest member JD_8520