Turbo Identification

[Captcol]

As we can not rotate the 4jg2 turbo on the mu's for the intercoolers would this turbo IHI RHF5 08734A part number 8971480762 as per http://www.trademe.co.nz/Trade-Me-Motors/Car-parts-accessories/Isuzu/auction-321125692.htm do the trick?

[benny]

Not trying to look stupid but does this fit 3.1 bighorn 1994 and would you fit it to your own vehicle?

[Captcol]

I am hoping to use this turbo on my wizard so I can fit a bighorn intercooler but I am unfamiliar with the part numbers for the turbos

[username]

dont think the guy is to sure about it but if it is as he says off a horizon itwill bolt onto manifold and it oil + water will bolt up factory,

only problem is,IM bidding on it as both my turbos are rooted.
impelleror exhaust wheel seized in one and other is got death whine plus oil seepage so fairly motivated buyer haha

let the bidding begin tomorrow at 1.40!

[Captcol]

ah death whine, is that on shutdown, if so mine is not in such good condition

[username]

no. both of mine have/had the shut down noise that any mechanic will tell you is heat sheild seperation, turbo about to go bang and you need a turbo for 3 years since i bought both engines

the one on my hilux had bloocked water pipes through excess sludge build up - no water movement in it at all- seized solid in the space of 5 minutes. the turbo on my project wagon which ran fine for days has a death whine below 2000rpm and a shit load of shaft movemnt, probably due to being "dyno" on a beach with no filter whist testing optimum injector pump tweaks., on shut down it whirs away like normal

both whir, it is true it is a sign of worn bits but i had 3 years of whine down whirring noise and no catastrophic failure or paying mechanics $1000+ to source and fit new turbos

[username]

I am hoping to use this turbo on my wizard so I can fit a bighorn intercooler but I am unfamiliar with the part numbers for the turbos

i did manage to twist the housing on the turbo off a mu to fit an intercooler though, it needed holes drilled and tapped and waste gate actuator welded shut but it was in a project wagon that wasn't a daily driver....

[geeves]

When they go Phewwww on shutdown quite loud this is the first sign of usual impending failure on the turbo on the 3.1 and some 2.8 Mus. It can last up to 3 years but failure when it occurs is quick. If it siezes you just loose power If the seals go you loose oil out the exhaust. For a bush hack this might be no problem but if your in the middle of nowhere it could add to the excitement of the day. middle of the Ausi outback could be dangerous

[Captcol]

sigh, guess i had better keep looking for one then ... A guy the other day thought the truck was supercharged

[username]

When they go Phewwww on shutdown quite loud this is the first sign of usual impending failure on the turbo on the 3.1 and some 2.8 Mus. It can last up to 3 years but failure when it occurs is quick. If it siezes you just loose power If the seals go you loose oil out the exhaust. For a bush hack this might be no problem but if your in the middle of nowhere it could add to the excitement of the day. middle of the Ausi outback could be dangerous

geeves you are one of the tumor spreaders! it is not impeding disaster it is merely a sign of wear, there is no time limit. year 2 years 3 years 5 ???, if the rest of the engine is healthy there is no reason to go out and buy a new turbo!
do you replace your rings and hone the bores when you see a bit of oil pluggin out the back?
do you replace your gearbox at the first crunch between gears?
do you respray your wagon at the first scrath in the paint work?
i say drive it til it needs repaired not pay mechanics who seldom know much about isuzu 4wds to replace (not repair) parts

[username]

and for the record when my one seized solid i drove it 300km home. top gear was 4th 90kmhr max, used near on double the amount of gas it shouldof but it was 3 extra years on a turbo that everyone said needed replacing.
for sure, it was annoying having to drive home from tora to wgtn over the rimutaks with a seized turbo, but with a flat head screw driver you can easily sort out an air filter less intake and only battle the seized exhaust wheel, rather than the seized intake as well as the seized exhaust

[geeves]

True As I said for round town or anything local its not a major and will get you home if it siezes. Do remember though a few 3.1s have overheated when run with broken turbos. If the seals go though I think its a tow job as it will dump liters of oil into the exhaust.
Here in NZ it wouldnt be the end of the world but our Aussi cousins go driveabout in one of the hottest places on earth and you dont walk very far in those conditions before you are in the same state as the turbo.
My recommendation has always been its going to blew on day Its up to you if you wait for it to go or do it soon.Only one turbo to my knowledge has done other damage to the engine so the cost of repair wont change if you leave it but the convenience factor might

[Captcol]

and I take it re building turbos is a professional job?

[walruz]

Yeah, what Geeves says. I've been thousands of k's from home in + 40c and very aware of the fact that
I've replaced a whining turbo. Call it peace of mind or preventative maintenance !!!

[BrokenMu]

If you don't have an intercooler, turbos are a nightmare. My old turbo destroyed my motor when the compressor wheel hit the housing and shattered. A complete rebuild is what I was up for. It's a tad more expensive than a new turbo

[jezza]

As we can not rotate the 4jg2 turbo on the mu's for the intercoolers would this turbo IHI RHF5 08734A part number 8971480762 as per http://www.trademe.co.nz/Trade-Me-Motors/Car-parts-accessories/Isuzu/auction-321125692.htm do the trick?

You can rotate the housing on 3.1 mus, I did it on mine

[Captcol]

I am wary of giving it a go, can't really afford to have the truck of the road while i save for a replacement turbo

[geeves]

If you are not happy touching it dont and pay someone who knows what they are doing. Getting it wrong is a $1000 mistake. I wouldnt be happy playing with my turbo. I wouldnt rebuild a gearbox but theres very little else I havent played with.

[Captcol]

The problem of living in a small centre is there is often not alot of people that know what they are doing when it comes to more specialist tasks

[geeves]

Tauranga is just a few clicks away