My A2 doesn't like the cold

Simon - I have bought one of these famous diesel filter drain screws. I considered the corrosion part of it before I made up my decision. The arguments used in the discussion between me, my selves and I was:
- most aluminium alloys are fairly corrosion resistant against water. With hydrocarbon's present one will see less risk of corrosion. Water will be mixed with diesel every time one will use the car due to movement and flow so the screw will be regularly flushed with diesel...
- no presence of chlorides under normal conditions
- no complex interference from other materials

Some people are very reluctant wrt changing a manufactures original solution - I am not one of them :) I am more one of them that applaud modifications and get amazed by improvements :)
In this case I am confident that the modification is safe and one will with regular drain of the filter lead to increased durability of the car since less dirt will reach the PD injectors (and probably be good for non return valves and the tandempump too)
dieselfan
 
I'm sure you are right dieselfan that the diesel being oily should prevent any serious corrosion :)

Simon.
 
sco said:
Changed the fuel filter today - it was black and the filter base was full of tar like crud so I'm hopeful that might be some or all of the issue. Quick test drive showed maybe slightly better but it is warmer today so not completely convinced - will do a more thorough test next week. (No drain plugs were harmed in this operation :) )

Paul - understood on the drain plug is there to drain water but hands up who has regularly done that? Do you think any water in the fuel might corrode your aluminium screw long term?

Simon.
Click to expand...
unlikely, but anything is possible
with the diesel present I think corrosion is very unlikely

Cheers,
 
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