sunsetR33

It's alright, working with all these scraps of information from the web is making me question myself as well. It is really easy to find part numbers but never what the specs of these stupid, mostly discontinued parts, is. Thanks for your effort at least I learned something about threads today

No no, sorry I think I made you misunderstand. I have this Tee as well as the lines that go from there. What I am missing is the banjo bolt that connects this line (OEM turbo oil supply line) To this hole, this line is mounted on the turbo and reaches around it so you have easy access the oil and water supply being rerouted to this dual banjo port in the front. like this

Nothing at the moment as previously there was a crappy braided line going from engine block directly to the turbo. I have bought a used OEM hardline for the turbo oil supply, which goes from the engine block to the marked hole. I don't have any of the OEM banjo bolts for oil except the one at the block.

Thanks for the link, but unfortunately they are only talking about the connections on the block. I need specifically the circled hole on the image. As the turbo is 7/16-24 imperial and the block is M12 I wouldn't be surprised if it was another size entirely. The bolt I have that was directly screwed into the oil feed hole fit into that very hole but it sat very loosely. Does an M11x1 bolt fit the 7/16-24 thread perfectly or is it kinda loose? Maybe then I can identify if it is either of these at least.

The hole circled in red. That is where the oil line connects into that is coming from the engine block. I can't find anywhere what thread this is. I'd prefer if I can buy whatever banjo bolt I can get hands on instead of waiting weeks for a Nissan bolt.

If I had "perfect R33 GTR" kinda money I would have bought one of the crazy expensive low mileage HJA cars, but I am sadly not that wealthy. I already picked this car out of various Skylines for sale locally, most of which were worse in some way. Only a few cars were actually better but also more expensive. In terms of buying a motor locally, I at least have the option to inspect it myself and juding the seller as a person, and used or freshly rebuilt engines that some people sell are actually ok price-wise. I knew the car was going to require work, but shit piled up real fast and I haven't even driven 1000km yet as the turbo started oiling like a bitch within a few weeks after I got the car. I assume it wasn't actually me who cracked it, though there is no way to know when that crack formed and if the previous owner even knew it was there. Buying another 05U Block can be a gamble, yeah, but the cheapest PRP cast block is like twice or more money-wise, and billet is 3 or 3 times as much. For now I am most likely just keeping the current engine, as a rebuild or engine swap isn't happening right now. But I am seriously considering buying a second engine and selling mine in return. Might be a sweet deal at the end.

Hi all. I need some help buying the correct size banjo bolts for my 2860 turbos. Because whoever installed them tore up the original part, I ordered new ones of this kind, because I just figured these were the most leak-resistant option as I already had trouble with a shitty braided line. I need to know the thread size of the smaller left hole, that is the turbo oil feed connection. I found out so far that the turbo oil inlet apparently has a 7/16"-24 thread, but I cannot find any listing or description of the thread size on this line. I do not have the original bolts. I tried using the bolts that were in the turbos (the ones that were mounted with the shitty braided line) but they sit very loosely so they can't be the right thread. Means either these bolts are the wrong ones (how do they fit the turbo then? no clue) or the wraparound-lines have a different thread than the turbo oil feed itself. Help is appreciated, asking Nissan directly is obviously not going to work.

EDIT: PSA to whoever stumbles upon this thread. It is in fact a crack in the block that caused this concern. Just letting you know. In my case, a few cm long hairline crack going horizontally above the turbo oil feed. Classic RB shit I guess

Yeah but even then I'd have to wait until my "chance" comes around as they go through their signup list. And even the street "normal" version of their block will cost twice the amount for a new heritage 05U block. Once I get these blocks a PRP one would net me 7500€ probably and a 05U likely around 3500€. Both of these are questionable as to when I'd get one as well. Currently I think buying an engine locally, of which there are some available with various mods and prices, would be cheaper. Can also sell my engine as a partout then afterwards.

Sad part is many issues only became apparent once I had the car and started looking real close. And if the turbo hadn't oiled on my exhaust I might not even have noticed the crack. If I were to (honestly) sell this car, with the current issues it has I'd lose a ton of money. Might as well invest into the car instead.

Yeah but even that repair will take time and I wouldn't trust that block enough to put a full rebuild into it just for it to fail sometime again. So I think I will just mend it from the outside and drive it until I can get a new engine in the car. We'll see

Update 2: Today I'm f**king pissed. Some of you probably saw my thread that I opened shortly after joining this forum, "urgently need expert/experienced opinion", in which I discussed the possibility of a porous RB26 engine block which I also found hard to believe. Currently both turbos are out since the shitty braided line that was installed by whoever fitted the GT28 turbos leaked oil onto the exhaust. Today while working on the cam covers to put new gaskets and half moons in, I cleaned the side of the engine block with brake cleaner. Some time later I saw that it was still glistening with oil or coolant so I dried that off. But it was wet again shortly after. Verdict: I'm royally screwed. What you can see here (hopefully, despite shit resolution), circled in red, is a crack above the turbo oil feed. Extent is a few cm long and basically goes from #3 cylinder wall to #4 cylinder wall. It slowly lets coolant through, even without any pressure behind it. I am absolutely dumbfounded as to how this crack even formed, especially since it isn't along the cylinder as it usually is but rather a horizontal crack. Probably a few cm in length. Not sure on how to deal with this issue right now. Most likely, the only true fix is a new engine block, and even a relatively well done temporary fix requires at least a full engine teardown. Neither of those really fit my timetable right now, the car has been in my buddy's garage long enough as it is. I'm open to suggestions, but I'll be looking into ordering a new 05U block soon so I have one ready for the coming year, or whenever the current block inevitably fails fully. (Most likely once the crack reaches one of the frost plugs) I think it'd be a waste of money and time to rebuild the engine with this block. Oh and I found a rust hole on the side pocket of the trunk, which someone covered up with sealant goop, a piece of number plate and bodywork filler. Fun times. So far for every issue we fix we just find a new one that is arguably worse.

I don't have the OEM oil feed lines though and the turbo-wraparound line is torn, only has water. My plan is to get replacements for these and just connect a braided line to there. And make sure it's leak free. Hoses like these are also sometimes used to connect external wastegates, so for an EGR I think you're good using them.

Alright I understand. The most likely case is probably gonna be that I just keep the OEM unit in the car as long as it works.

Unfortunately I am quite literally halfway across the globe. So all sources for parts like that are far away for me. What do you mean by that exactly?

Thanks for the reply @GTSBoy Haven't really thought of that yet, but you are right. If the hose was damaged it should be absolutely pissing by now. I'll put some heat sleeve around it for good measure since I'm already removing the line anyway. Maybe I'll put on some of the stock hardlines if I ever fully remove the turbos again. Maybe when T51R modding the compressor housings? Might be a fun mod on GT28s for that "fake single turbo" effect.

Update 1: I did some work on the car already before finalizing this post and my "issues" list. I dropped the Tomei exhaust in favor of the HKS Hi Power Silent. Sounds nice and I can actually hear myself think now. Also gives me a realistic chance to legally drive without silencer inserts. A bit of cheating was necessary to still be able to mount the Top Secret style diffuser. Some malusage of washers and a bit of "convincing" toward the brackets and exhaust hanger seemed to do the trick. The shaky steering wheel has been resolved as various suspension components were worn, like sway bar bushings and link bars. Most notably the two steering tie rod ends. Had some trouble finding bushings because my sway bars are not OEM thickness, 23.x up front and 27 rear. But non adjustable, so no aftermarket I suppose. Maybe they are nismo units? Turbo oil drain hoses were definitely still the originals and are new now. Wasn't the cause of the turbo oil leak sadly. Currently removing the rear turbo because of it, I suspect the braided oil feed line is the culprit. This issue needs to be dealt with so I can work towards actually getting the turbo setup legal and inspected. Two new issues to add to the list as well. Rear Main seal is probably leaking. Time will show how bad it is, I don't really want to drop the gearbox right now just for the stupid seal. Could fix a few other things in one go once I do that. Front right driveshaft grease is going past the cv boot, so at some point I'll fix that too.

You're probably right about that one. Thanks for your suggestions, I hope I don't need a new 3rd brake light. Although wiring issues might arguably be worse. Right now I'm in the midst of a turbo removal because of my oil leak, other problems are going to have to wait for now.

Hell, I know that much. So far I just put it off as "part of the deal".

Hi all. I already posted some newbie-ish questions here and there but this will be my first "big" post. Last summer I went and fulfilled a kind of childhood wish, because I just thought I needed this experience in my life no matter what. The car I bought is a mildly modded 1995 BCNR33 Vspec. It was repainted to a metallic orange color all around and it had all windows reseated. Not so well done black respray in the trunk and a metallic black in the engine bay. From outside it looks very nice except for a minor paint error on the roof and the rear spats needing new adhesive tape. The inside is pretty clean and no broken plastics, missing or faded buttons. Even the adjustable mirrors and trunk antenna work like a charm. Despite a moderately long list of issues I don't (yet) regret buying this car. Most mechanical problems are just due to age, like worn rubbers here and there. The underside sadly has lots of corrosion, especially to the back. It looks like it either has been driven in the winter for a while or it lived near the saltwater in Japan, the rust is nothing terrible but it'll require to be looked after. Mostly panel gaps and all the mounted components underneath are a bit crusty, but I don't think anywhere has progressed so badly that there's going to be holes. Front right jacking rail is crushed and needs some care so it doesn't develop into a rust crater at some point. Worst part is definitely the strut towers. I thought they looked fine but after taking off the strut bar I noticed that it actually started bulging up on the passenger side. Probably would have passed on the car or negotiated down by some thousand Euros more if I had noticed this before buying, but here we are. Trunk area also has signs that there was a water leak to the interior once but nothing too crazy, I guess lots of Skylines had this at some point. As for the list of (known) issues, I'll try to make this compact. I hope the coloring is self explanatory. Mechanical: -Various busted or soon-to-be busted rubber bushings and ball joints. Will replace ball joints with OEM or better and bushings with polyurethane where possible. -Shaking steering wheel at above 80kph -downshift from 5th to 4th is a bit crunchy unless I rev-match, might just try to renew the shifter assembly, but it's not a priority issue -tailshaft centre bearing could use a replacement, is it worth going 1-piece tailshaft as it doesn't look too fresh all around? Chassis: -underbody corrosion on many spots and in hollow spaces, needs to be treated -corrosion on many bolts, hoses, lines, suspension components, subframes, will be treated when replacing of the bushings is needed as time goes on -strut tower top panels and some of the surrounding panels are rusty, so needs fixing. Will look into doing this with a buddy in the winter, otherwise bite the bullet and pay a professional -driver side door is misaligned to the body and needs to go a slight bit more inwards -both door windows are misaligned and have an airgap where the window meets the door at the B pillar -The Aerocatch latches for the bonnet have locks but no keys, need new keys. -driver side door window is kind of gritty and could use a polish -damaged jacking rails and front frame rails, from people lifting the car the wrong way, might have this fixed by a bodyshop Electrical: -Nismo tachometer is just bouncing and displaying nonsense, supposedly worked fine when the stock ECU was still in the car -An old Greddy boost controller sits on the dash which will be removed as it servers no purpose anymore. -a led segment rpm gauge is on the steering column, will probably also be (re-)moved once the Nismo tacho is working correctly -there was an attempt to make the sound system better by the previous owner but it was just inducing noise all the time, ripped out the amp and filters in the back, no music for now -trunk antenna goes up as long as the radio is on regardless of the mode, I want it to only rise if I choose Radio specifically or per switch -3rd brake light is a bit dimmer than the taillights but everything was converted to LEDs so mabye now it just seems dimmer? -reverse light flickers, have to test if that behavior changes when I fiddle with the gear stick. Hope I can get around changing the switch. -Left side taillight, blinker section has minor water intake and is humid after washing. Other side has a hole in it, probably for that exact reason. I'll probably reseal them entirely and plug the holes. Engine: -minor coolant drips on one or the other hose -rear turbo leaks oil onto the exhaust making the car essentially undriveable due to fire hazard -Oil filter relocation kit has an oil drip at the Dash lines, will probably make a new connection there and tighten real good and pray -throttle body assembly is slightly stuck for the first throttle pedal input after sitting for a while I'm always open to suggestions and advice from more experienced people, I'm sure half of this list is easily dealt with and just requires some time and effort to sort out properly. Once I have some proper pictures of the car I will post some in this thread, I just have to remember to take some more once I get the chance to. Will post updates when I have news on anything, I want to try to keep this thread as kind of a logbook as well. Ultimately my goal for this car is to just enjoy it. An engine rebuild is probably going to happen sometime as well, because it is old after all. It will never be fully new again, I am just not that rich. But I want it to look good, work well and not rot away while I drive it. I'm probably gonna spend a lot of money on this journey, hopefully not an unreasonable amount.

Hi all. So one of my major issues at the moment is my rear turbo leaking oil on the exhaust (and the general area). I presumed it was the rock hard super old drain hose, which it was not. So now I am in the midst of removing the rear turbo to get access to the banjo bolt that goes into the turbo oil feed. As one of the previous owners accidentally? tore off the OEM oil feed hardline that reaches behind the turbo, they ran braided lines directly to the turbo, presumably PTFE. Now, regardless if the line has rubber or teflon inside, is it just generally a bad idea to do this? I imagine these lines get quite hot being between the engine, turbo core and exhaust manifold. I suppose it's not too far fetched to think the line may even have melted. I'd love to hear your opinions on this as as the replacement OEM hardline piece is 130 per unit. And cutting open the currently mounted line to see inside will mean I just have to get a replacement either way. So far I am hoping maybe the bolt just loosened or (god forbid) they forgot one of the crush washers.

Hey, yeah I really like the color. Only paint I'd rather have is KN6, but those are expensive. Right now I'm trying to get the car to the point where I can get it tuned to 370hp so the whole setup can be driven legally, and pass the next inspection that is already due anyway. Beyond that lots of rust fixing I'm afraid, winter project is most likely going to be a front end teardown and fixing the strut tower rust. I know these can be driven daily but I don't think I will do so anytime soon. Will post a build thread soon with a list of issues and futute plans. Cheers

Just a follow-up on this topic. From what I can tell so far the rusty residue on the engine block might be unrelated to a coolant leak or maybe just older than anticipated. After driving it from the winter garage to my friend's garage I could not see any new traces of coolant leaking there, but I will test this properly once I was able to fully warm up the car and drive it for a bit. I think I can agree that the whole porous engine block stuff is kind of nonsense, but there is just a silly amount of true, false and half-true information on anything Skyline-related on the internet.

Yes, but you need to do these type certifications for tuning parts. That is the absurd part here. Meaning tuning parts are very costly (generally speaking) as well as the technical test documentation for say a turbo swap with more power. It just makes modifying everything crazy expensive and complicated. That bracket has been lost in translation many years ago I assume, it was not there.

Read the ECU for fault codes or have someone else do it. A faulty coolant temperature sender is usually listed in ECUs. If the sensor itself is not busted it can also be a bad ground connection. Or in a really unlucky case, damaged wiring.