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where is the cheapest place in aust to get an ATI? I have family in the US might be able to send a few over if its worth it

I think we were quoted $930ish from hioctane or someone like that. Shipping from the states and the average dollar then import duties/GST.. almost worked out the same :down:

And yeah, was going to suggest Ross.. AFAIK, ATI only do 26 balancers.

I think we were quoted $930ish from hioctane or someone like that. Shipping from the states and the average dollar then import duties/GST.. almost worked out the same :down:

And yeah, was going to suggest Ross.. AFAIK, ATI only do 26 balancers.

yeah but if you only got 3 per time sent from a residential address in USA to a residential address here i dont reckon they could sting you the 27% tax or what ever it is

where is the cheapest place in aust to get an ATI? I have family in the US might be able to send a few over if its worth it

performance wholesale last time i rang was $714

While we are totaly off topic, anyone know of a good ballancer for an RB25 specific belt setup,

give Ross a call as they can make a custom balancer to suit ur application

I won't use an N1 pump again, I just had one fail and it's ugly. Just lots of little bits of smashed gear and the consequential damage no oil pressure causes. The extra dollars for a Nitto pump are well and truly justified compared to the time & cost of fixing the damage a broken pump caused. I've used 50 or 60 in the past without a problem but am now really paranoid about using one again.

We've got a heap of billet oil pump gear blanks machined up ready to cut the gear teeth on, anyone interested in a billet chrome moly set of gears that will fit into a factory pump housing? I'm just weighing up the cost of finishing them off, from memory we have about 50 sets semi machined. Also considering making then spline drive like a Toyota rather than the 2 flats.

I won't use an N1 pump again, I just had one fail and it's ugly. Just lots of little bits of smashed gear and the consequential damage no oil pressure causes. The extra dollars for a Nitto pump are well and truly justified compared to the time & cost of fixing the damage a broken pump caused. I've used 50 or 60 in the past without a problem but am now really paranoid about using one again.

We've got a heap of billet oil pump gear blanks machined up ready to cut the gear teeth on, anyone interested in a billet chrome moly set of gears that will fit into a factory pump housing? I'm just weighing up the cost of finishing them off, from memory we have about 50 sets semi machined. Also considering making then spline drive like a Toyota rather than the 2 flats.

what sort of $$$ are they going to be?

I won't use an N1 pump again, I just had one fail and it's ugly. Just lots of little bits of smashed gear and the consequential damage no oil pressure causes. The extra dollars for a Nitto pump are well and truly justified compared to the time & cost of fixing the damage a broken pump caused. I've used 50 or 60 in the past without a problem but am now really paranoid about using one again.

We've got a heap of billet oil pump gear blanks machined up ready to cut the gear teeth on, anyone interested in a billet chrome moly set of gears that will fit into a factory pump housing? I'm just weighing up the cost of finishing them off, from memory we have about 50 sets semi machined. Also considering making then spline drive like a Toyota rather than the 2 flats.

as previously discussed greg - i think your above idea & in particular the spline drive is right on the money!!!

hypothetically speaking, it is much better having the stress over say 12 edges rather than 2 edges, but then i also wonder why hasn't anyone done this in the past?

yeah but if you only got 3 per time sent from a residential address in USA to a residential address here i dont reckon they could sting you the 27% tax or what ever it is

The problem is, you haven't paid GST on them. The import duties only came to about $60, it was the $300+ in GST that really pissed me off. Residential to residential you might get through. Like I said, I've run the gauntlet before so I guess I should be happy this was the first time to get stung.

I just recently got a collar fitted on my crank and because I'm anal about all things in my motor, I pulled the backplate off the N1 pump and checked the gear clearance. It appears that the guy who did the collar for me machined the collar a fraction so it would fit easier. Now its seems a little looser fit on the gear. I'm not happy at all! Either way I'm getting it redone with a new collar and getting the reimax gears just for added security.

After what just happened to my crank, I wonder how many guys actually take the pump apart and check gear to collar clearances, as the company that did mine reckon they do it to all of their collars.

I won't use an N1 pump again, I just had one fail and it's ugly. Just lots of little bits of smashed gear and the consequential damage no oil pressure causes. The extra dollars for a Nitto pump are well and truly justified compared to the time & cost of fixing the damage a broken pump caused. I've used 50 or 60 in the past without a problem but am now really paranoid about using one again.

We've got a heap of billet oil pump gear blanks machined up ready to cut the gear teeth on, anyone interested in a billet chrome moly set of gears that will fit into a factory pump housing? I'm just weighing up the cost of finishing them off, from memory we have about 50 sets semi machined. Also considering making then spline drive like a Toyota rather than the 2 flats.

Definitely be interested aslong as the cost isn't exorbitant.

As for the splined idea, if you could supply a crank collar to suit then that could also be a goer.

And 20 cases is... 0.001%? :down:

Yes 20 random cases in 5 minutes of searching... and as somone mentioned, most people wont like to admit their motor had issues even if it was due to bad quality parts.

I suppose its my own fault, buy a cheapy N1 pump and hope it will last was a dumb idea on my behalf.

Marko, Toyota do it on most of their engines now, have done on their diesels for years. It's just that they are more labour intensive to make. It takes me 5 minutes to mill the flats on one of my collars, to mill 30 or so splines will take a lot longer.

It's a bit of a catch 22, to make a billet gear to suit the standard drive, the inner portion of the rotor needs to be wire cut as you can't mill that shape and I don't have a wire cutter and people that do charge a pretty good hourly rate for them and it's slow, from memory about 5mm/min, maybe newer machines are quicker. The rest of the gear is a mill-able profile and the internal splines can be broached which isn't a hassle to get done. I've got the rotor profile cadded up so that's not a problem. There's also isotropic finishing and heat treatment to do. I'll do some sums and see if they're still worth making.

How much are the gears you can currently buy? These wouldn't be cheap but they would be very good stuff.

Slow but damn accurate! We had the same issue when I looked at making replacement gears for one of our dry sump pumps that got damaged....however internal radiuses too tight for any cutter in the mill. Needed a wire cutter.

Curse the damn machines!

Kudos to you greg for having a go at sorting out this issue though. If successful will no doubt help alot of people out!

hey gary - you should go straight to the horses mouth & speak to jim from crd about the nitto pump...he has had over 20 years experience with the gtr & has been exposed to countless pumps (n1, tomei, jun, stock). he will give you the low down in about 5min :down:

Thanks Marko, i've bought the Nitto off Paul :/ And thanks for pulling out Rezlo, sounds like you got a good deal on an even better setup for your needs.

Gary

Marko, Toyota do it on most of their engines now, have done on their diesels for years. It's just that they are more labour intensive to make. It takes me 5 minutes to mill the flats on one of my collars, to mill 30 or so splines will take a lot longer.

Even if you have a collar and with a spline that drives the oil pump gear you will still have the flats on the crank driving the collar correct? Seems like it is not solving the direct problem.

Double key would do a nice job too, splines are harder to get right. Easy to machine a keyway in the crank and a mating inner section of an oil pump gear. On an engine refresh just replace the keys. But it means crank out...

Mike

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