buddabeast Posted December 1, 2013 Share Posted December 1, 2013 Hi guys, I bought a Rb25det turbo last year finally got it all plugged in and fitted. But when I put water in the radiator water started pissing out the side of the turbo housing as you can see in the photo. I thought it was a casting defect initially but obiously it's a crack. Do you think I'll need another turbo or is there a decent weld (cast iron) that will fix it up and remain good with the high temps the turbo will have? Maybe the other guy who owned it never used water... he didn't mention the crack in the auction, said it was good condition and went well on his cefiro.. Quote Link to comment Share on other sites More sharing options...
mjrstar Posted December 1, 2013 Share Posted December 1, 2013 I think that's likely to be rubbish bin spec, you wouldn't look to try and repair that...high temps and possibility of the crack extending into the oil passage means ary repair is likely to come back to bite you later.. Quote Link to comment Share on other sites More sharing options...
cute wee gem Posted December 2, 2013 Share Posted December 2, 2013 yeah just bin it, not worth the hassle imo for a cheap turbo? Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted December 2, 2013 Share Posted December 2, 2013 agree with everyone above but if it were me id just remove the water feed and fire it up. If it leaks no oil then it's all good. It prob was fine on the cef because he used no water cooling with it. Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted December 2, 2013 Share Posted December 2, 2013 its a crack in a turbo, I don't know how anyone could feel good about driving with that, if its cracked there, who knows where else its cracked. could eventually lead to total engine failure and it that really worth the risk? Quote Link to comment Share on other sites More sharing options...
cute wee gem Posted December 2, 2013 Share Posted December 2, 2013 ^ yep. I had a turbo with a cracked exh housing (from water going through it while hot during a blow up) - put it on the new engine and it shagged its bearing within minutes Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted December 2, 2013 Share Posted December 2, 2013 My Nissan turbo has a crack in the exhaust housing and can see one in the water jacket aswell but I don't run water so not sure if it leaks. It's been like this for over 5 years and I run 18 psi aswell. Depends on weather your keen on the risk I never even considered it and I've been lucky I wouldn't repair it tho don't think welding the turbo core is a good idea maybe the housing. Quote Link to comment Share on other sites More sharing options...
buddabeast Posted December 2, 2013 Author Share Posted December 2, 2013 Thanks for all your opinions. I've put this turbo on an old LD28 engine - in the past I have run it without water however I did have a problem with oil coming out bascially all ends of the turbo but I put this down to a kink in the oil return line to sump. I thought if oil couldn't get out that way then it must be finding another way out.. But that would mean it's making its way past oil seals so only other problem might be that the seals are screwed? So I may just try running it again without water and see if the oil stays inside the turbo as I have a non-kink return house now. Cheers Quote Link to comment Share on other sites More sharing options...
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