Scott Posted September 2, 2011 Share Posted September 2, 2011 As above really, looking to take some parts to a fabricator and just want to be 100% sure what all the parts are made of. I'm thinking cast aluminim for the most part but I just want to be 100% sure. Water Elbow (connects to top rad hose) Main Water Pipe (connects from pump to heater matrix) Cam Covers (Self explanatory) One little side note, I was looking at the water pump and I noticed it had a little pipe coming off the bottom. I don't remember this going anywhere. Is it a drain? Where does it drain from? Thanks Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted September 2, 2011 Share Posted September 2, 2011 Water elbow and cam covers Im 99% sure are cast ally, the water pipe that runs up the side of the block? I think thats also ally but might be steel, cant remember of the top of my head. The pipe on the water pump is indeed a drain, a dry drain. If the bearing seal goes it will leak out of there Quote Link to comment Share on other sites More sharing options...
Scott Posted September 2, 2011 Author Share Posted September 2, 2011 Water elbow and cam covers Im 99% sure are cast ally, the water pipe that runs up the side of the block? I think thats also ally but might be steel, cant remember of the top of my head. The pipe on the water pump is indeed a drain, a dry drain. If the bearing seal goes it will leak out of there Ahh that explains it. I couldn't think of a reason for the drain lol. Quote Link to comment Share on other sites More sharing options...
David P Posted September 2, 2011 Share Posted September 2, 2011 Note that used cam covers will have drawn oil into the casting and can be a PITA to weld. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 2, 2011 Share Posted September 2, 2011 The drain hose is designed to flow any leakage past the alternator, and not into the alternator. As has been said, the bits are cast alloy and all weld OK with a generic aluminium filler rod. Quote Link to comment Share on other sites More sharing options...
Scott Posted September 2, 2011 Author Share Posted September 2, 2011 Do you know what the water bypass pipe is Chris? I wasnt sure if it was allu or copper? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 2, 2011 Share Posted September 2, 2011 You mean the one with two rubber O rings on it? I am 90% sure it's also made of aluminium alloy. I can have a look at an engine in build on Sunday, and confirm for you Scott. Quote Link to comment Share on other sites More sharing options...
Scott Posted September 2, 2011 Author Share Posted September 2, 2011 You mean the one with two rubber O rings on it? I am 90% sure it's also made of aluminium alloy. I can have a look at an engine in build on Sunday, and confirm for you Scott. Not sure if it has O-Rings, it's the one that connects to the water pump and feeds round behind the head. It branches off to feed the turbos, into the matrix and round the other side of the head to feed the TB & ICV (the one that stops it from freezing) before going through the stock oil cooler and back into the block. I've taken away the oil cooler, my turbo is oil cooled and I'm not bothering with anti-freezing the TB & ICV so I'm just going to chop everything off other than the matrix feed and weld it all up Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 2, 2011 Share Posted September 2, 2011 OK, I know what you mean now, it's steel, painted black. Highlit below? Quote Link to comment Share on other sites More sharing options...
Scott Posted September 2, 2011 Author Share Posted September 2, 2011 The very one mate, many thanks. Just regular steel yeah? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 2, 2011 Share Posted September 2, 2011 Take a magnet to it, it may be stainless but I thinks it's mild. If it's stainless it won't be magnetic. I seem to recall them rusting though. Quote Link to comment Share on other sites More sharing options...
Scott Posted September 2, 2011 Author Share Posted September 2, 2011 Take a magnet to it, it may be stainless but I thinks it's mild. If it's stainless it won't be magnetic. I seem to recall them rusting though. Yeah I'll double check it. I didn't notice any corrosion on mine but I didn't really pay much attention to it. Thanks again Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 2, 2011 Share Posted September 2, 2011 I work on so many different engines I forget. The RB26 has something very similar, that's definitely mild steel, and definitely rusts. M5 engines have some stainless, some mild stuff, it's hard to remember sometimes Either way it will weld OK. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted September 2, 2011 Share Posted September 2, 2011 Pretty sure its steel Quote Link to comment Share on other sites More sharing options...
Iky Posted September 2, 2011 Share Posted September 2, 2011 Pretty sure its steel Possibly stainless? Mine is still shiny silver, not painted. Quote Link to comment Share on other sites More sharing options...
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