Do urethane bushings need grease?
Polyurethane bushing manufacturers advise to never use a petroleum based grease for poly bushing lubrication. Polyurethane should only be lubricated with one specific type of grease to insure long bushing life, and squeak-free performance, Silicone based synthetic water-proof grease.
Are urethane bushings worth it?
As they don’t rot or deteriorate, they often outlast the vehicle they’re put on. For anyone looking to upgrade their suspension, poly bushings are a great choice. Here’s how poly stacks up against rubber: Ride Quality: Due to their hardness, polyurethane bushings often lead to a bumpy ride.
What is best grease for urethane bushings?
Marine Grease All the things that make this grease good for it’s designed purpose of handling applications around water also make it a good candidate for polyurethane bushing grease.
How tight should leaf spring bushings be?
The bolts should be snug, but not so snug that the suspension binds up. If your shackle bolt were tight enough to prevent movement in the setup they eventually would wear themselves down to the point that they would start moving.
Do you grease leaf spring bushings?
Leaf springs don’t have zerk fittings and they’re a pain to service once installed – properly greasing the bushings on initial installation is the best way to ensure silent operation as long as possible.
How long do polyurethane bushings last?
With proper care, polyurethane bushings can last the lifetime of the vehicle. The bushings will need to be re-greased every few years. Without proper lubrication, the bushings can wear, squeak, and bind. Some polyurethane bushings have a grease fitting.
Do polyurethane bushings break in?
I was told by our resident engineer that there is no “break-in” period on a polyurethane bushing. However, from a practical standpoint, I know that I personally noticed a big difference in the poly motor mounts after about a week or two on the car.
Which is better rubber or polyurethane bushings?
Rubber bushings have more “give” and eliminate most noise and vibration making the suspension cushier. Poly bushings hold the suspension components tighter which is better for handling and alignment but the downside is more vibration making its way from the road to the driver.
How often should you grease polyurethane bushings?
Maintenance: Most poly bushings need to be greased about every three to five years.