Well, it's a beautiful day in New England....time to play with POR-15! My main goals are to deal with a one inch rust area on my W124 wheel well and, on my W210, the lower cross member that sits in water in the encapsulation panel (what a stupid design!) and a few spring perch spots.

I had hoped to address the surface rust at the shock towers....but it's just a bit too much of a reach (I only have ramps)....can't imagine that I would do anything other than a half a$$ed job.

The towers still look very solid. And I'm sure that, eventually, I will have to get my auto body guy to fix them properly. In the meantime, am I fine simply checking them once in a while to ensure there's no movement? Again, I've already resigned myself to paying for the repair down the road.

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Might be better to use Fluid Film to keep the rust at bay...
not take a chance it is hidden under a covering like Por15...
and where you have trouble getting to it..
I think it also comes in spray cans...

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

For such tasks I like to use Rustoleum outdoor protectant spray. Forgot the exact name, but has a shovel on the can. Seems to leaves a waxy petroleum coating, perhaps like cosmoline. You can remove it easily later to do a proper painting. I spray fasteners and such with it, when I don't want to take the time to paint.