RB-GTE Posted June 25, 2012 Share Posted June 25, 2012 Ok so I just found this Supra for sale that I am very interested in buying right away. Everything is great with the car. The car is pretty much stock, including the engine, and it has 125,000 KMs (77,000 miles)... Facelift 1997 TT6 J-spec. For example, my other Supra which is stock, has almost the same amount of mileage at 115,000 KMs... but the intake manifold is like butter. It's a nice smooth color. On this car I am interested in it looks like this in the pictures below. I am wondering is this a problem at all? is it caused by heat? anything negative from this? http://img542.imageshack.us/img542/457/73307471.jpg http://img822.imageshack.us/img822/4318/73307431.jpg Quote Link to comment Share on other sites More sharing options...
FOSTA Posted June 25, 2012 Share Posted June 25, 2012 (edited) I'm sure that's normal mate as my NA intake looks exactly the same , light surface corrosion on the alloy intake. Edited June 25, 2012 by FOSTA (see edit history) Quote Link to comment Share on other sites More sharing options...
Geo Posted June 25, 2012 Share Posted June 25, 2012 nothing to worry about, its 15 years of motoring. could get it all polished up, but imo there a nightmare to keep clean, Quote Link to comment Share on other sites More sharing options...
safcdixon Posted June 25, 2012 Share Posted June 25, 2012 Yeah its just the alloy oxcidising, mines the same Quote Link to comment Share on other sites More sharing options...
RB-GTE Posted June 25, 2012 Author Share Posted June 25, 2012 Good to know. I have seen even some Supra's with 160,000 KMs and the intake mani looks almost like new. I just dont like how it looks the way it does on the car I'm interested :/ Quote Link to comment Share on other sites More sharing options...
safcdixon Posted June 25, 2012 Share Posted June 25, 2012 The rest of the engine looks really clean tbh, should be easy enough too get polished up abit Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted June 25, 2012 Share Posted June 25, 2012 Just dont worry about it, doesnt negatively impact the car at all. Quote Link to comment Share on other sites More sharing options...
David P Posted June 25, 2012 Share Posted June 25, 2012 (edited) Looks like it has been standing for a while. A squib of WD40 every now and then will stop that. Edited June 25, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 25, 2012 Share Posted June 25, 2012 See if we lived on the moon this would have never happened! Quote Link to comment Share on other sites More sharing options...
nige-rz Posted June 25, 2012 Share Posted June 25, 2012 My car never had this, until it was parked up for 2 years, now the engines covered in it. I assumed it was from the damp etc. Spent a lot of time trying to clean it off but to be honest I think I made it look worse. Would love to hear what Stonkin would recommend. Quote Link to comment Share on other sites More sharing options...
RB-GTE Posted June 25, 2012 Author Share Posted June 25, 2012 Yeah I'm assuming if the car was parked for sometime this can occure, but if its driven on a regular basis it can be avoided? Doesn't look like that can be cleaned off too be honest, I think the whole mani would need to be removed, sand blasted, and painted. Quote Link to comment Share on other sites More sharing options...
David P Posted June 25, 2012 Share Posted June 25, 2012 Soda blasting makes the castings look new. Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted June 25, 2012 Share Posted June 25, 2012 mines been stood 5 years and is bad. wire brushing will get it off just takes work. Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 25, 2012 Share Posted June 25, 2012 Mine had done 50k and the manifold was like that, nothing to worry about at all. As said its just genral corrosion mate, it looks like a tidy engine bay to be honest If your that fussed, a bit of FROST silver paint does the trick See my engine makeover thread http://www.mkivsupra.net/vbb/showthread.php?233857-Engine-bay-makeover Quote Link to comment Share on other sites More sharing options...
Abz Posted June 25, 2012 Share Posted June 25, 2012 Mines a bit like that & the engine has only done 25k!! I wouldn't worry about it. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted June 26, 2012 Share Posted June 26, 2012 Mine had done 50k and the manifold was like that, nothing to worry about at all. As said its just genral corrosion mate, it looks like a tidy engine bay to be honest If your that fussed, a bit of FROST silver paint does the trick See my engine makeover thread http://www.mkivsupra.net/vbb/showthread.php?233857-Engine-bay-makeover That looks awesome! How is it holding up; and how do you find the maintainence? Quote Link to comment Share on other sites More sharing options...
Jellybean Posted June 26, 2012 Share Posted June 26, 2012 Mine did not have any corrosion but I was cleaning the engine bay and just sprayed some Autoglym Engine cleaner on it ; it came out like above Quote Link to comment Share on other sites More sharing options...
Wez Posted June 26, 2012 Share Posted June 26, 2012 Perfectly normal, happens when a car is left outside and not used very often. Quote Link to comment Share on other sites More sharing options...
ubersonic Posted June 26, 2012 Share Posted June 26, 2012 Its called patina, its what non-ferrous metals do instead of rusting, its why copper goes green, brass goes dark, etc. by removing it your essentially removing that layer of metal so the layer below can patina, but I doubt you will live long enough to wear it down noticeably personally I leave it as patina usually has a higher melting point than the metal it forms on and poorer heat transfer so it basically acts as heat proofing on the intake (yes I know its unlikely to make a single degree temp difference, it's just how I justify my laziness to myself ) Quote Link to comment Share on other sites More sharing options...
gavin.starr Posted June 26, 2012 Share Posted June 26, 2012 You could always get them powder coated and it woul never hapen again. Would need to get high temp stuff though for the pipes above the turbos etc... Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 26, 2012 Share Posted June 26, 2012 That looks awesome! How is it holding up; and how do you find the maintainence? It looks just as good as when i first done it mate, very impressed with the FROST paint....Just have to make sure you clean the parts as best as you can before hand Quote Link to comment Share on other sites More sharing options...
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