Jump to content
SAU Community

Recommended Posts

no warranty on import spare parts as per Nissans national headquarters fax to me after I asked about the pump, as the car wasnt service or the part wasnt installed buy qualified nissan mechs there is no warranty on nearly all spare parts regardless of whether its a mechanical part or not!!

  • Replies 105
  • Created
  • Last Reply

Top Posters In This Topic

no warranty on import spare parts as per Nissans national headquarters fax to me after I asked about the pump, as the car wasnt service or the part wasnt installed buy qualified nissan mechs there is no warranty on nearly all spare parts regardless of whether its a mechanical part or not!!

That's actually not correct. Nissan can't bypass it's 'fit for purpose' obligations by such statements, imported parts or not. Statutory warranty obligations still apply. However, you would have to prove that the part was faulty from manufacture.....and that's the difficult part.

Can anyone here do metalurgy tests to test if the gear drive material is the same as standard pumps as I believe they are a harder steel but a more brittle one thus prone to cracking....

I could, but I can't become 'involved' in any official way because of who I work for (my time is currently charged at around $1500/day and this is about a weeks work to a proper job, report, etc). I don't mind having an informal look and give you a guide as to what's going on + put you on to some people in Sydney that will be able to pursue it further if you want....at cost, of course).

Unless a proper, scientific investigation is done, everything else is just pure speculation AFAIC. It's highly unlikely the materials are at fault, if properly designed and selected in the first place. Faulty materials probably account for <5% of all mechanical failures.

Wheres your R&D injected?

we are all still waiting for it :whistling:

many many examples versus just one... i know which one i'd trust

no need to maybe u should read everyone else's post .... how about u prove me wrong..ohh hand on a sec u cant as usual... u just go on what other people have said or what u have been told....

.....im listening

and about the cranks many engine builders actually shave the end of the crank where the oil pump fits to turn it over beta/ beta hold on the oil pump hope i explained that.

and your a tosser if u think the n1 oil pump is better than the jun/tomei one's.

but i know u would go for the n1 because your a tight ass.

cheers.

Edited by infected flow
I could, but I can't become 'involved' in any official way because of who I work for (my time is currently charged at around $1500/day and this is about a weeks work to a proper job, report, etc). I don't mind having an informal look and give you a guide as to what's going on + put you on to some people in Sydney that will be able to pursue it further if you want....at cost, of course).

Unless a proper, scientific investigation is done, everything else is just pure speculation AFAIC. It's highly unlikely the materials are at fault, if properly designed and selected in the first place. Faulty materials probably account for <5% of all mechanical failures.

hey steve actually the gears failed on both occasions not the bearings or anything else but when u look at both pumps they are very similiar =standard = n1 oil pump im not actually sure if its the design or the metal that the pumps are made of.

cheers hope this helps

all the N1 pump failures I know of were gear failures too. like I said before, a lot of it comes down to the use of the car, but regardless of that they definately seem more prone to fail that tomei/jun/trust pumps. It's enough of a concern for me to not use one on a decent $$ build which is pretty much any RB26 build these days!

Why not use an external oil pump? Not a dry sump setup, just a pump thats sucks the oil up then feeds it into the engine. Maybe make use of the standard pressure relief valve and plumb the external pump into the standard positions. I would be surpised if there wasn't something available that could be used.

Or is there more to it than that?

External Oil Pump

Moroso's External Oil Pump System has shown significant horsepower increases when used in conjunction with our External Wet Sump Oil Pans. Mounting an oil pump outside the engine (similar to a dry sump setup), allows the use of a full-length windage tray for less windage and more power! An External Oil Pump also eliminates torsional stress on the camshaft, as well as spark scatter and resultant horsepower loss caused by an internal pump.

Interesting

a couple of people do use external pumps on RB26 with a wet sump. but it's not cheap. not as expensive as dry sump (not far off) but more expensive than a JUN/Trust/Tomei pump so they are kind of middle ground. most people either save their dough and use the JUN/Tomei/Trust option (along with baffles, enlarged sump, external oil return, head restrictor) or go the whole hog to Dry sump. Like I said though there are a couple RB26s in Aus with external oil pump, wet sump set-ups.

Time some of you guys that have lunched engines and pumps to post in my thread in my sig, but I'm going to be linking directly to this thread out of there anyway and adding to the review.

My first thought on seeing the first post was hard cut rev limiter launches and then possibly the pump drive configuration, but on a $10K engine that would be hard to believe. Can the oil drive config be confirmed as short or long?

As with anything the failure can be diagnosed fairly easily if you know what to look for, so time for pictures as well so some of us can comment on design flaw/manufature flaw/destruction due to usage.

There has also been a thread where a Kiwi did straight up testing of the N1 vs stock and the N1 has larger flow capacity due to larger gear spaces so could laed to fatigue failure (from thinner material in some areas), harder material in the pump gears as well as the higher pressure relief valve.

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

    • Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • https://www.facebook.com/share/p/18rmVb1SKB/ 
    • The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...