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1991 R32 Gtr - Turbo's Stopped Working

Methor

By Methor,
in Engines & Forced Induction

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MrStabby Grand Master

MrStabby

Posted
Posted

@MrStabby: Can you define 'Rough running' for me?

Missfire/hesitation. You'll notice it when vacuum hits zero (unless you're just at 0. Since one turbo is not turning, it becomes a hole to atmosphere so the gauge wont go past zero). The car should run normally if you have some vacuum (that is, at low throttle - you're boost gauge also shows vacuum). Normal when your turbo is gone will top out at ~90kw...

Methor Apprentice

Methor

Posted
  • Author
Posted

Okay, so $250 and a day later... I have found out the following:

Rear Turbo blew out a bearing... I have the remnants in a plastic ziplock bag ;)

Fuel injectors are leaking

And there's an oil leak into the rear turbo...

When it rains, it pours :(

Methor Apprentice

Methor

Posted
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Posted

Tell me about it... Worst part is... I got quoted about $6,500 all up to fix it.

$4K+ for the injectors & Oil leak, $2200 to rebuild both turbo's with steel ball bearings. ($2800 to go hi-flow)

Seems a little expensive to me, even if it is an import car... Any suggestions would be greatly appreciated!

MrStabby Grand Master

MrStabby

Posted
Posted

New -7s should be $2200 for the pair, so $2800 for high flows is pointless. Leaking is common with GTR injectors, as is rear turbo failure...

Fatz - is $40 to stop the leaking through the body of the injector? (that is not dribbling into the cylinder). Who does that sort of repair?

Methor Apprentice

Methor

Posted
  • Author
Posted (edited)

Yeah, basically... They quoted $2200 to rebuild the Turbo's as Steel Ball Bearing Turbo's using the original housing. $2800 to do the same as Hi-Flow.

I'm not looking to spend heaps and heaps on the engine, it's why I'd go for the $2200 Turbo's. It's the Injector rebuild I'm not looking forward to, but it will need to be done, it's causing issues with my fuel consumption... Getting about 350km a tank from moderate driving

Also, I think that $40 is just for a new injector head.

Edited by Methor
smithy85 Community Regular

smithy85

Posted
Posted

Welcome to gtr ownership. From here on your wallet does all the talking

^HAHA! Yeah isn't that the truth lol.

DO NOT spend $2200 on rebuilt steel wheel standard turbos.

Get some Garrett -7's or -9's for that price and reap the benefits instead of burning money on turbos that are barely even suited to the RB26.

And where did 4k! come from for fixing some injectors and an oil leak?! Unless it was a new piston job or something deep. You should be able to find some aftermarket, second hand, bigger injectors for about $500 in decent condition or simply get a used set of std injectors - always available, and cheap as chips. Oil leak into rear turbo?, doesn't the factory rocker breather plumb into the rear turbo inlet? my rear turbo was oily beacuse of this too - didn't mean it was a leak though. Who did the diagnosis on the engine faults?

Depending on tunes, 350km out of a tank isn't all that bad. Dont get me wrong, its not great by any means, but I was running close to that (380-400) with std turbos on a "super duper" safe tune by Croydon! Then changed tuners to JEM and am getting closer to 420/430 with more power. Food for thought.

SiR_RB Grand Master

SiR_RB

Posted
Posted

those prices you got quoted are crazy high !!

pick up a good set of 2860-7 turbos for about $1500 (theres afew for sale at the moment)

+ labour to remove and install turbos

then fix leaking injectors for cheap

Methor Apprentice

Methor

Posted
  • Author
Posted

Thanks everybody for confirming that the place was ripping me off... Or just doing a shitload of work to the injectors that I didn't fully understand, which if I could explain properly you'd probably go "Ohhh... Maybe..."

All I have to do now is find a place that isn't going to rip me off that's somewhat close to me. (Vic, S.E Burbs)

MrStabby Grand Master

MrStabby

Posted
Posted

If its just the injector seals leaking then check out the DIY in my sig and do it yourself. However, its common for old GTR injectors to leak through the body, which you'll see as wetness on the injector body. I had 3 doing this, so I got a set of new 550 seimens for ~600 (ebay, from US), but of course you need to have an aftermarket ECU to run different injectors. If you're strapped for cash, just do the turbos and live with the leaky injectors a bit longer (keep an eye on them tho).

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