I was thinking of heating it alright would it loose any strength?
i would only heat up a new one..
may i ask how u fitted it up..........as what i do in this situation is first completely tighten up the oil feed line to the turbo and to the oil unit housing.....THEN i finish tighten up the turbo to the manifold....and i never had any leaks/breaks......even when i stretched it to fit on the 5E
this way the oil feed line fits flush at both bases and only the "line itself" will hold the adjustment instead of where it joins the oil unit and the turbo
and i would not advise cutting the oil feed line.....if u do, then get it joined back properly with the same material the line is made from
and i too have ran aftermarket manifolds.....
the sps mani we used never caused any issues....the slight out of place thing is HARD to cure,,,,as its truly up to the jig used, but each weld will tension things out of place....so very few things made on jigs will fit exactly....they will be close however.........even simple things need to be taken into account when welding.....someting like the flange being a little distorted can put things out of place very slightly
its usually nothing to worry about........but every case is different
im not into botch jobs though and wouldnt have such an important pipe under strain on any turbo car or touching the block which it was especially when just 3-4 mm of flex in it can crack it. You may be lucky if you or someone you know managed 50mm long term with no cracking.
if it cracks, the block and turbo could pop if im cruisin 300 miles to london which i regularly do. well worth redoing it. the fact that so many people have had this problem is tribute to how easily they can crumble under strain.
mine didnt break luckily but it was enough strain to not allow the flange to seal properly and leak. the bolts were very tight too and it didnt help.
the gasket is the same one and is in perfect condition before and now so it was the strain on the pipe that created the leak. i tested this before and after a few times
I wouldn't advise anybody to bend these through 50mm, but the metal is not 2 disimilar to rigid fuel hose, which is fairly maluable, the old feed could be bent through 4mm with no problems IMO, there wouldn't be an ongoing stress on it, as it would be bent once then left.
If you was going to do the job properly you should have removed the banjo bolt and got a screw in fitting so there isn't a compression fitting onto the old pipe. IMO what you have done is no better than the original pipe bent through 4mm.