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I am pretty certain that was one of the reasons the new pistons are going in, one of the features of the replacement …

MTQ Turbo I don't know the details but when I get home from my work trip I'll post a photo. The engine is going to have the new pistons replaced( yes new pistons in a brand new block removed) with some German brand that are stronger but don't allow too high compression as the standards. An up...

I have been in touch with the owner of the company (Bullet) doing business with the twisted steel performance mob, he does 95% super chargers on diesels these days, he does do a few engine rebuilds and has an in house engine reconditioner that works on all they’re engines, he’s booked out till...

It’s still too early to call Bullet but judging by the feedback I’m getting you can count on me calling them. I also owe the seller of the proposed new engine a call today again too early to call them yet but you can count on a lot of questions.. So if the 6.5L Optimizer is really a disposable...

Because I’m not in the trade and still learning all of this I don’t remember names as well as I probably should someone has to literally beat me around the head a bit before it sinks in, it is likely I have mixed up names and figures, I am expecting an official quote for all of this later today...

Well what can I say? I have no control over those details, I trust my seller and he has been affiliated with that company for a long time, I guess if they have that many subsidiary companies under them there’s going to be dodgy dealings somewhere along the way… As far as I’m concerned a brand...

So back to the “other towing vehicle”, this vehicle not only needs to tow my camper trailer this time round but will become my full time work vehicle for the foreseeable future, I have made a choice based on a few mechanics I know recommendations. I‘m looking for an Isuzu engine called a 4JJ...

So you see there won’t be any rushing and basically the mechanic won’t be rushed anyway, he plans on keeping the car for a week after it’s completed to drive here and there and test and adjust accordingly. I have no idea when I will get my car back and it’s an hour away from my place so it’s...

Hello Gents I have an update, yesterday the seller of the new engine called as well as the mechanic that will be doing the job. The car wont have work started on it until the 25th of January. This means I will have to purchase another towing vehicle, more on that later. I asked the seller about...

Can someone explain to me exactly what a P400 is? I know the engine recon guy here has the option for P400 but I am confused, is it a whole engine or just the heads? What makes them so much better than Optimizer heads?

I should also mention that the new engine is coming from the other side of the country, it’s a long way away and we here in Sydney are currently not welcome in Western Australia yet due to covid restrictions. The seller also will be sending me a new oil cooler free of charge and I have asked...

Before the replacement engine (which I now worry is a recon job not brand new) I had an offer from a well regarded engine reconditioner that if I had another vehicle repairer remove the engine they will strip it down and clean it to see exactly where the problem lies for $500. I have my own...

Thanks for the info do you know the name of the Australian company in cahoots with Twisted Steel?

Hello again Gents Here is where I will start the new thread regarding the replacement vs repair of the 6.5L Optimizer Engine in my GU Nissan Patrol. I am in everyone here’s debt up to this point, (I would mention names but am still learning how to navigate around the site) As a matter of fact...

Good help is hard to find, I appreciate your advice Thankyou! I just sent an email to AM General for they’re advice on who to deal with in regards to a brand new engine, if anyone here can offer advice on a company in the U.S that is the real deal please let me know. I do not want to blow my...

Btw… I did a search for 6.5 L Optimizer for sale and the first thing that comes up on eBay is a U.S company called Bostic in North Carolina I think.. can anyone verify them as legit? Also the company I have been dealing with is one of 2 x companies here in Australia that promote the Optimizer...

Whoa! This is exactly why I joined this forum! I had absolutely no idea but I must admit somewhere in the back of my mind I smelt a rat after the first repair. Fortunately I have the old harmonic balancer here I can take a photo of and show you. and I still have the time… it is gonna stuff up...

Should this conversation be continued on a different thread btw?

Ok so I will be 100% truthful here, I am keeping the injectors from it, they will be sent away and tested, if found to be ok which they should be at only 50,000kms. I’ll keep them for spares. The company that installed the original engine and are supplying the brand new one have offered me $3000...

Will do! can anyone use the old engine? It still runs but without having looked up top yet best guess is worn needle bearings on lifters…