thicker oil for dampers

Post by **mogatron** » Wed Oct 21, 2009 4:59 pm

hello team, think i'm going to put thicker oil in s dampers as remember reading it on here. whats the best oil to go for?

Post by **jonathon** » Wed Oct 21, 2009 5:17 pm

Roy will be along soon to help you decide

Post by **PSL184** » Wed Oct 21, 2009 5:38 pm

jonathon wrote:Roy will be along soon to help you decide

In the meantime I'll suggest straight 30 weight

Post by **bmcecosse** » Wed Oct 21, 2009 7:10 pm

Yes - SAE 30 or 40. That's NOT 10W40 - which is effectively 10 grade. You should get it in a small can at a motorcycle place - certainly Tesco have 30 grade for motor mowers ion small cans. Maybe a good starting grade.

Post by **mike.perry** » Wed Oct 21, 2009 9:10 pm

The stiffer the front suspension, the harder the road humps

Post by **bmcecosse** » Wed Oct 21, 2009 9:18 pm

No, quite the opposite - because it effectively damps out the movement and stops the suspension banging the bump stops - THAT'S when the suspension goes solid !

Post by **mogatron** » Sun Oct 25, 2009 10:07 am

how much oil does it take to do all 4 dampers?

Post by **Peetee** » Sun Oct 25, 2009 10:29 am

A 250ml bottle should do it.
Find a plastic syringe. It makes filling a doddle. If you try filling from a bottle its hard to pour accurately and you tend to get an airlock and it all spills out.

Post by **mike.perry** » Sun Oct 25, 2009 6:05 pm

No, quite the opposite

Well why does a modern car with soft coil spring suspension float fairly comfortably over road humps at 30mph and a Minor with hard torsion bar suspension feel as though it is hitting a wall at 15mph?

Post by **bmcecosse** » Sun Oct 25, 2009 7:08 pm

Because it has decent damping! It also has longer suspension travel - before it hits the stops - but nbot easy to do much about that on a minor.