Jump to content
SAU Community

Recommended Posts

Hey soon i am going to be doing my injectors and turbo and what not, and i was just curious, i have done my research and the manual sais to drain the coolant to take the top half of the manifold off? Has anyone done this job? How hard is it? What tools are needed? Is it time consuming?

Thanks. Phill.

Link to comment
https://www.sau.com.au/forums/topic/140919-taking-off-top-half-of-inlet/
Share on other sites

draining the coolant is for when u take the cooling lines off the throttlebody/top half of manifold, u will need to remoove your crossoverpipe,throttle cable,all hoses/electrical earths, basicaly anything connected to the top half of the manifold, then theres a series of long bolts laying under the bottom section of the manifold, which transfer to the top. take em out then give the top half of the manifold a tap with a soft faced hammer to release its grip on the gasket, then its off! :sick: it took me no more then 30min, but im a mechanic :sick:

Edited by dead32

The first time i done injectors i didnt even take off the throttle body, the second time i did and it was much easier. If you are only taking off the top half of the manifold to do the injectors i wouldnt bother and just take off the throttle body as it gives you plenty of room.

i am a mechanic too, but only an apprentice :D so would just taking the throttle body off be enough to take all six injectors out? i was thinking the whole top half. With the coolant lines, wont you just be able to block them off rather than draining all the coolant?

Im trying to grasp how long this will take me and rob from creatd.. I was kinda thinking a whole week to do injectors ecu tune and turbo. Ecu and AFM i already know what to do, turbo im not too sure about, rocker cover gaskets i know 100% and plenum i kind of know whats happening.

Edited by LTHLRB

you can actually replace the injectors without removing the TB or the top half of the plenum. once the fuel rail bolts are out you lift and slide the whole assembly forward.

the hardest thing to do is get to the clips on injector #4 & #5.

I am about to replace the injectors and this time will remove the TB as i think it will be easier.

wouldnt worry bout taking apart plenum.

have changed injectors in a few rb20s and only took off throttle body.

dont really need to drain coolant. just unbolt the tb and unclip lume parts. pull off the coolant lines and just let them drain till it stops (alot less than draining whole lot) just make sure no coolant goes in the holes while the injestors are out

pretty easy job mate, just fiddly (esp. clips) should take bout an hour to change injectors.

maybe a little longer for your first time

i wont be doing it myself. I will have someone who knows rb25s like the back of his hand helping me, so shouldnt be a problem, i just wanted to know the best way to take the injectors out. :laugh: thanks heaps.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Yeah, the latter. No diff should have a centre replaced without checking clearances because its unlikely to be the same as whatever came out. Not that that stops most people just checking a new centre in
    • Major thread necro but how bad of a job is it to DIY? Looking at it online it looks like if you reuse your ring and pinion as long as those are in good condition it should be fine to just pull the axles/front cover and replace the diff that way? Or should I be replacing everything and doing preload measurements/gear mesh testing like the factory service manual mentions for the rear diff?
    • in my list I had the R33 GTR as the best Skyline. Infact I had all GTR's (33>34=32), the NSX, the GTO, the 300ZX, the 180SX, the S15 better than the FD RX7. I had the MR2 and the A80 as 'just' better. I also think the DC5R Integra looks better but this is an 01 onwards car. I also think the FC>FD. It's almost like aesthetics are individual! The elements @GTSBoy likes about the FD and dislikes about the 180 are inverse in my eyes. I hate the rear end of the FD and it's weird tail lights that are bulbous and remind me of early hyundai excels. They are not striking, nor iconic, nor retro cool. The GTO has supercar proportions. I maintain these look much better in person (like the NSX) especially with nice wheels and suspension which is mandatory for all cars pretty much. Some (or all) of these you have to see in person to appreciate. You can't write a car off until you see one in the flesh IMO. Like most people we probably just like/dislike cars which represent certain eras of design or design styles in general. I also think the 60's Jag E type looks HORRIBLE, literally disgusting, and the 2000GT is nothing to write home about. FWIW I don't think the Dodge Viper Gen1's have aged very well either. You can probably see where I rate bubbly coupes like the FD. I know we're straying now but the C4 and C5 absolutely murder the Viper in the looks department as time goes on, for my eyes. Wouldn't surprise me if people who love the FD, also love the MX5, Dodge Viper, Jag E Type, etc etc.
    • I used to hate R31s, and any of the other Nissans that led up to it, and any of the Toyotas with similar styling, because of the boxiness. They were, and remain, childish, simplistic, and generally awful. I appreciate R31s a lot more now, but only the JDM 2 door. The ADM 4 door (and any other 4 door, even if they are unique compared to our local one) can eat a bowl of dicks. The Aussie R31 is also forever tarnished by their association with stereotypical bong clutching Aussie R31 owners of the 90s and early 2000s. I think the Nissans of the 70s (other than 120Y/180B/200B) are far superior looking to the 80s cars. The 240K era Skylines are boss. The same is broadly true of Toyotas. Hondas don't ever register in my thinking, from any era. Mitsus are all horrid shitboxen in any era, and so also don't register. Subarus are always awful, ditto. Daihatsus and Suzukis also don't generally register. They are all invisible. I think the SW20 MR2 looks fiddly. The 3000GT/GTO is like that but way worse. Too many silly plastic barnacles and fiddly gimmicks ruined what could have been a really nice base shape. Kinda-sorta looks like a big heavy ST165 Celica coupe (and I'm not sure if that's a good thing or a bad thing). I think the 180SX is dreadfully bland. It's not bad looking. But it has no excitement to it at all. It's just a liftback coupe thing with no interest in its lines, and bad graphical elements (ie wide expanses of taillight plastic on the rear garnish). The S13 Silvia is a little better - getting closer to R32 shapes. But still....bland. S14? Nope. Don't love it. S15...a little better. Probably a lot better, actually. Benefits from not being like a shrunk in the wash R34 (where the S13 was a shrunk in the wash R32 and the S14 looked like a Pulsar or something else from the stable on Nissan mid 90s horrors). The Z32 was hot as f**k when it came out but hasn't aged as well as the A80. Keep in mind that I think the R33 is the most disgusting looking thing - and out of all the previous cars mentioned is objectively closest to my precious R32. It's just....real bad, almost everywhere you look. And that is down to the majority of what was designed in the 90s being shit. All Nissans from that era look like shit. Most other brands ditto. In that context, the FD absolutely stands out as being by far the best looking car, for reasons already discussed. Going behind the aesthetics, the suspension alone makes it better than almost any other car.  
    • If they just called it the "Mazda Tiffany", it would have been spot on.
×
×
  • Create New...