05-23-2010, 12:08 PM
Join Date: Apr 2010
Location: hull, United Kingdom
What I Drive: focus lx blue
FF Reputation: 1
Buy-Sell-Trade Rating: (0
Originally Posted by sailor
No washing needed! In prev. discussions, use of "soapy" products that are made to work with water was avoided, as drying off an assembly that has a lot of small gaps to "wick" and hold water is virtually impossible.
On a side note, I've often used soap & water, followed by clear water, after washing parts in solvents. The caveat is that this type of washing is ONLY possible on fully disassembled individual parts since immediate drying using compressed air blast and sometimes even a "shop" oven set warm when humid conditions prevail is essential.
If we were doing a complete rebuild on your engine, that would be the first step after complete disassembly, and would be repeated after any machine work on individual parts.
Water per se is not a complete no-no, if complete drying after use is possible to prevent corrosion of sensitive parts. After thorough cleaning & degreasing ALL internal metal parts are at risk for corrosion, so anything not immediately assembled and oiled for use needs corrosion protection while awaiting later use.
Dried residue from Varsol (white spirit) will be "washed" by the engine oil after assembly and first use (any puddles visible would have been wiped up) - remaining swarf is caught by the filter, remaining solvents suspended (dissolved) by the oil, so an earlier oil & filter change than normal would be advised. Barring a large amount of crud left behind this just means not stretching the first interval beyond normal limits. If concerned/unsure go ahead & change after a bit of use (you need to give the oil & filter time to do their job of cleaning).
very well said sir!
As you know I've cleaned the swarf with the WD40 as best I can. I just wanted to rinse the inside of the sump with white spirit and a brush as there are lots of little bits in there.