I have started to work on my 1992 E350 bus with almost 200,000 miles.
I bought this bus at action over a year ago and havenít really driven it much. It came directly from one of our schools in CA and it seems like it has been given really good care. No sign of any cheating or short changing our students on maintenance. The maintenance was done directly by our school and not some external corporation. Iíve found a lot of new looking parts, brake lines, AC unit, hoses etc. All with factory ford numbers,so Iím feeling good about the work.
Iím going over the thing just the same, changing all the fluids etc.
During my inspection I notices something on one of the front coil springs that gives me concern. See image attached.
There looks to be some kind of ding on the spring. I first thought it was fretting corrosion but after I got a good look at it, it looks like some kind of grind or gouge. The only thing close to it is the shock. I wonder if at sometime the shock failed and dinged the spring. Or is this some kind of ďtuningĒ of the spring, Iíve never heard of; Just hoping it will be OK
I can not see an sign of a crack or pitting. After cleaning the spring it looks good otherwise. There is some yellow paint on the spring. It looks like it might be over-spray from when the bus was painted yellow; its only on the outside edge towards the wheel; so Iím thinking these might be original springs. This doesnít really give any clues about when the ding happened or how.
Has anyone seen anything like this?
Does it seem serious?
How hard is it to change the springs?