Jump to content
SAU Community

Recommended Posts

My mechanic used nail polish.

Have the t/b's in the closed position, apply the polish around the edge of the butterfly, on the side that the butterfly moves away from the seal, leave for a few hours then just open the throttle bodies.

thats interesting.. will definately have to remember that

Hey Guys thanks for the replies, much appreciated. Mechanic told me when I picked it up that the inside of the throttle bodies was terrible, and that he used carby cleaner and a brush to remove the gunk/sludge which was about 0.5m thick, yeah sounds like taken the sealing off. I rang nissan and its $1k for a new set of throttle bodies with the linkages as well (not for me but the mechanic to get). Can I ask GTRGeoff what brand your special brand of blue silicone is??? I also ran compressed air through the intake and no leaks anywhere, it also has a slight backfire with closed throttle while decelerating which meas air is getting in.

Just lob into autobarn or supercheap and look on the shelves for the ultra blue gasket. Nail polish sounds good, but becomes very hard and may not adhere very well if some fuel gets backfired into the throttles or some oiling of the intake occurs through the crankcase return.

got any pics geoff? its about time someone came up with a fix for this problem.....

incidently the workshop manual doesnt say anything about not cleaning the throttles either. but every time i hear about a gtr with a high idle it turns out to be someone has cleaned the throttle bodies

hey mate!

I had this exact problem last time i did a rebuild on my rb26dett. You'd think that cleaning out the throttle bodies would do a world of difference but its totally opposite. Although they look really dirty i just don't touch them now. You can clean the gasket surfaces but not the bore where the butterfly seals on. Yes they do use some sort of sealing compound in the factory to minimize this idle problem.

If your from Sydney i know that SAS out at silverwater fixed mine up, They have that sealant out there. Doesn't take long just take the throttle bodies out there

Next time try not to clean the bores out :thumbsup:

"doesnt take long to pull the throttles out" Are you kidding! Or have you never done it, to R&R its a full day job

I think he means that it doesn't take too long for SAS to reapply the sealant to the t/b's, and was not referring to the task of removing the t/b's from the engine.

wish i seen this info 2 days ago.

just cleaned the throttle body on my R33 gts-t.

my car always idles high and fluctuates. but after cleaning t/b it doesnt fluctuate, justs idles at 1500 and after driving 2500!. i adjusted my tps and managed to drop idle to 1000-1100 which i can handle... for now...

with this blue gasket sealant idea... wouldnt you risk blocking the small hole you can see infront of the butterfly... iv noticed the hole inside the t/b leads air to the top right of the t/b into a piece of vac hose that goes onto piping located on the bottom of the crossover which leads to the charcoal cannister.

The blue sealant lasts for years in other applications. You have to be very sparing for joining the interfaces between components and likewise the throttles. I recall Ben at Racepace Melbourne prefers the blue instead of paper gaskets as well.

Thanks Geoff, I just came back from the mechanic and its going in again on friday, I told him that hes prob going to need to reseal the TB,s with gasket sealer and he said no worries I actually have some teflon stuff, so I hope all goes well. Now it seems the car is going into saftey mode, not all the time just ocasionally when I am driving which prob mens its knocking or something is playing up?? think I will have to put the restrictor back in the actuator and wait til I get a Power fc. There is no way to get the codes from a 33GTR without a consult cable?? ahh why cant the car run without problems. I was hoping to get some 2860r -7 soon too. Anyone know when the GTR will hit saftey boost??????

wish i seen this info 2 days ago.

just cleaned the throttle body on my R33 gts-t.

my car always idles high and fluctuates. but after cleaning t/b it doesnt fluctuate, justs idles at 1500 and after driving 2500!. i adjusted my tps and managed to drop idle to 1000-1100 which i can handle... for now...

with this blue gasket sealant idea... wouldnt you risk blocking the small hole you can see infront of the butterfly... iv noticed the hole inside the t/b leads air to the top right of the t/b into a piece of vac hose that goes onto piping located on the bottom of the crossover which leads to the charcoal cannister.

I am pretty sure this does not apply to GTSTs.

Sounds like you have an air leak elsewhere

Dropped car off this morning and picked it up this arvo, still having issues but they are trying to get me to replace the AAC unit, they believe it to be a loose spring. I was thinking that yeah maybe possible but then I thought if the car was leaking in air around the TB initially (which it certainly was) And it was idleing nice when it went in, then sealing the TB with gaskets should cause it to drop in idle not raise it. I knew it wouldnt be fixed today. So now tomorrow it needs to go back, I wish I thought a little quicker when I was there to think of this.

Now if they refuse to take it apart I am just going to do it myself, now for anyone who has done this. I remove the TB and then paint a circle around the TB on the side closest to the engine, let it dry, cut and open TB and reinstall.

The top half of the t/b's need to be "painted" on one side and the bottom half on the other. The butterly has to move away from the seal, not scrap over it.

Can't understand why you're giving up so easily. Tell then, if they want to replace the AAC valve you're happy to let them do so and pay for it; after you have seen that it fixes the problem. If the problem is not fixed, they could keep the AAC valve and do what they have been told.

Thanks AI, I am just so annoyed and impatient with things, I just want it fixed. I hate driving the car if there is something wrong with it as it just frustrates me. Yeah thats a good point, I have holidays for the next two weeks so it would be nice to get it fixed in the time off. Will let you know. Appreciate the support.

Ben

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

    • I've owned a few scooters over the years, a Vespa PX oil burner was my first scooter, followed by a few others, including a little 50cc BeeWee that I used as a barracks bike, and I've had a blast on all of them, they really are the cheapest for of city/suburb transport around The only issue with scooters in Australia is lots of people look down on them due to their size,  maybe they need a big bike to make up for something else where they are lacking, unlike Europe and Asia where every man an their dog owns one, and now that filtering is legal in NSW, local traffic is never a issue Not to say I haven't owned my share of big cc bikes over the years, but they were for more blasting through the hills or Hwy riding where it needed to sit on Hwy speeds Safety wise, I ride like everyone is always trying to kill me, everyone is running a red, or running stop/give way signs, or generally asleep at the wheel, which most people are duringtheir commute, I also ride really safe, and give myself, and everyone else enough room in case I need to pull some hasty evasive actions, I've done a few rider training days over the years, which has come in handy on more than a few occasions  As for mods, there's nothing really, and yes your right about aftermarket exhaust, all you get is loud and obnoxious noises from them, like every 250-300 cc you hear with a aftermarket muffler, in saying this I did put a rear muffler from a 125 Aprilla on one of my old 125 scooters, it was horrendous and no amount of full face helmet and ear plugs would dampen that noise As for coming from the Harley, and what a overpriced POS that was, I no longer do big rides as my poor old busted joints ache after about 1/2 an hour of riding, long cruises are so much more enjoyable now in a car, so a big bike would be pointless   
    • Oh wow, it's easy to forget how cheap these can be. Probably the cheapest way to travel. Though people in cars here tend to be morons and I would not feel very safe. Were scooters ever big in Australia? It used to be the thing growing up in Europe ~20 years ago. 50/70/125ccm Peugeot or Yamaha and some others. Utterly obnoxious Polini race exhausts. Kick stands that slant as much as possible. So loud. So much noise for really not moving very fast at all. But it felt cool at the time. Not sure where I'm going with this, but there is an aftermarket for mopeds! Though I'd have pictured you more for a Goldwing kind of guy after growing out of the Harley.
    • You need to know I am sorry for this.  
    • As the MX5 isn't apparently "manly" enough, and I need something for runs to the local shops, and also take to my part time job at the salon, basically I can keep the MX5 away from car parks and stuff......like "flying lockers", I was wondering what I could buy to fix this issue LOL, I pick up a new Yamaha 125 Delight this arvo from Trooper Lu, basically a R1 that you can fit a slab of beer on between your feet, also, it was $29400 cheaper than a R1, so actually it's 2 x better than a R1    
    • Nah. H2S. H2S is "rotten egg gas", which is what is associated with no cat. SO2 is equally nasty, and if you've ever smelt it you'll know all about it. More of a choking, acid in the back of the throat sort of thing. But you can only smell it in a narrow range up to about 1ppm. Above that, it irritates your mucous membranes, but you don't smell it.
×
×
  • Create New...