Jump to content
SAU Community

Recommended Posts

nismoid pls dont close this thread. i had my oil pump fail today on the dyno at just under 400awhp and i am hearing conflicting stories that the ross balancers can do this. i was told that an ati or a new stock nissan balancer would be much better. has anyone had any oil pump problems with a ross balancer fitted ? what power were u running ? i know of the early 32 oil pump drive probs but i did not think that they were this weak, and have not heard of them failing this early in the game. especially with a good brand new balancer. opinions pls.

Link to comment
https://www.sau.com.au/forums/topic/363400-r32-gtr-oil-pump-failure/
Share on other sites

really, this seems like the norm,

I hate to say it, but an old oil pump and narrow oil pump drive with over 7500 rpm and this is where the problem usually occurs.

bit of a hit and miss really, some seem to survive, some don't.

sorry to hear though mate

I have never heard of a Ross Balancer destroying an oil pump but then I don't know much - would be interested to hear of anyone who knows/thinks different. Sounds like you need a crank collar and a brand new pump.

people kept telling me after the failure that this is a problem with ross balancers. but now im not so sure because so many people use them. surely a brand new balancer of this brand cannot be attributed with the pump failing ?? ill make some calls tomorrow to get as much reliable info as possible. just snapped a half inch drive trying to remove the balancer aswell, happy days :)

My old GTR motor had a stock balancer (balanced with the new bottom end) and it was running fine, it was then switched to a ATI balancer (the guy who purchased my car got the wrong one for a R33 GTR and it kept flicking off power steering belts) so he changed to a Ross balancer.

The motor then proceeded to lunch itself, shitting a oil pump, cracking the block as well as damaging the bearings.

The motor was fine for 2 years running between 500-575rwhp and then suddenly after changing to a ROSS balancer it broke in very short period of time!

Not blaming the ROSS balancer and it may be a coincidence, but food for thought :)

If the engine is balanced correctly you shouldn't have a problem.

Remember, crank, rods, pistons, harmonic balancer, clutch and flywheel all need to be done

Incorrectly adjusted timing belt, power steering and a/c belts don't help either.

Hitting the rev limited is also a sure fire way to break 32 pumps.

I feel the problem was not the balancer but most likely installation.

Matt

a question for you.....is the balancer gripping on the crank/woodruff key correctly?reason i ask is that is ive seen a balancer that had stripped the woodruff key and was loose on the shaft,the bolt bound up its own thread and refused to come out(it wound out 2 turns then was rock solid)This engine had a crack in the pump gears because of the balancer wobbling back and forward like a dick in a shirt sleeve

Edited by ylwgtr2

^^ nah its tight trust me, tested the thing b4 i put it on. then done the vvft procedure. it fitted very snug, excellent fit. any hoo with all the stories im now scared to use this thing with the nitto pump. the ross is probably an awesome balancer, but i dont know that.

I'm looking for something more factual in this thread. A stock oil pump broke at revs, a common occurence especially with stock oil pump gears and stock narrow pump drive. You blame the balancer. I've gone to the expense of the ATI myself, on the advice of the experience of my engine shop, but unlike the stock oil pump breaking I haven't seen as much specifically caused by the balancer you mention.

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

    • looking for some help and maybe some insight on others experience with a new LSD. R34 GT ran and drove beautifully, but always alot of grip loss due to the open R200 rear end, so I just installed a new 1.5 LSD way into the stock open R200 for a ER34. Simple. Everything seemed right. I test drove for the first time this weekend. as I started to back out the garage the first time slowly with tires straight it sounded and felt like I had a loose or half disconnected drive shaft...that was clucking around loose and shaking entire vehicle, and making it feel like the trans clutch was spontaneously slipping then grabbing very roughly while just letting out pedal slowly. I backed it out went to pull forward with the same noise, shake and slip grab feeling with hesitation, I turned the tires to back out more and then pulled ahead some same thing but worst because of added wheel resistance (which that I expected) puzzled … pulling it back in checking everything over and finding nothing wrong, I tried it the next day. same thing, couldn’t believe how it shook everything again making a terrible noise and making it feel like the trans clutch was slipping and grabbing, but I got it out of garage into the driveway, got it straight, drove forward and then reveres a few times in a straight line everything shaking , causing what felt like clutch slip and grab every time, sounded like right behind front driver tire and I could feel it in the floor board with my feet,... worst right when beginning to let clutch pedal out to engage slightly, shuttering and sounding terrible along the way…I managed to slowly get down the road, babying it the whole way, once I was rolling (out of 1st) seemed to be better and between shifts, then clutch felt closer to normal…not slip/ grab etc., but back down to any stop, straight road or turning, same thing. Made no difference if all tires were straight or if I was turning. All other gauge read out correct. with in 2 miles as planned I reached the empty parking lot and performed the break in procedure that came with lsd, essentially to drive in a figure 8 a bunch.  Did this, binding chattering, and shaking the car the whole way. I drove it back home seemed somewhat normal once I was in straight line and past 10 mph or so, and I know it will “bind” on corners and cause some tires squeal when turning especially from a stop, but when I begin to move it still causes what feels like the trans clutch to slip and jerk badly as well as shaking the entire car, and sounds terrible, that I didn’t expect. I used the fluid they supplied with LSD kit and did the breaking, planning to change fluid as they suggest after breaking, but wondering will it get smoother or less aggressive with use? maybe a 1.5 is just too aggressive for normal road driving?   I have a LSD that I put in my 71 cuda when I restored it, with amazing smooth , quite yet effective results. Different style LSD but that ones a joy to drive. maybe expecting too much from this R200?
    • Join SAU NSW for a flame-grilled feed & flame-spitting cruise! Sunday 17th August 2025 3:30PM Meeting Archies Flame Grille Sylvania Waters 4:45PM Cruise Departure 5:15PM Arrival at Cape Solander Kurnell Meet Location: Archies Flame Grille Final Destination: Cape Solander Kurnell *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
×
×
  • Create New...