While I had the Bomber on the stand I took the opportunity to do some checks and repaint some ergal pieces that I had built in recent years and had not anodized. Having removed the rear shock absorber, I went to a shock absorber service center where they have a shock absorber check bench and I discovered that my DNM was KO.
The two circled areas identify an absence of damping force at each reversal of the rod's stroke.
Some time ago I noticed a play when I pressed the shock absorber but I thought it was the frame attachment bushes that were finished and I replaced them.
View attachment 347646
I also confirmed that I have a 700lb/in spring.
These are 365Kg at 30mm that equal to 12Kg/mm = 700lb/in
LB/IN TO KG/MM:
700 lb/in = 12.5 kg/mm
650 lb/in = 11.6 kg/mm
600 lb/in = 10.7 kg/mm
550 lb/in = 9.8 kg/mm
View attachment 347647
Now I have to decide what to do.
Should I overhaul this DNM maybe replacing the spring with a 550lb/in one or consider purchasing a new one?