Oil Pump Crank Collar R32 Rb26

[exXU1]

Dear people,

I have conducted a search and found no info, so i need your oppinion.

I am currently building a meduim to high hp rb 30 /26.

I have assembled the bottom end and all good gear has been used .

BUT dam it i did not get the crank oil pump collar widend.

No one over here in WA does it any way.

I have just been informed that this was a crucial mistake and my N1 on the standard crank will not last 5 minutes , i tend to disagree.

Is it mainly in tired r32 rb26 engines that they let go ?

If this is the case what if i replace every , say x amount of km's.

Will this help or is it simply an hp issue.

Sometimes i wonder if some things i get told from tune shops are simply a "turnover factor " . Please enlighten me on this if you would not mind , are there any alternative measures i can take . some one mention a collar that can be bought or made .

Thanx

[N I B]

It is a real problem.Sweeting@Denny can mod your crank or Noztec can fit the JUN collar in WA.

[archie01]

I am led to believe that it's easier and simpler to buy a new r33 crank from nissan for around $1000-1100 (cheaper if u can get trade prices) rather than stuffing around and modding the smaller r32 crank collar.

[N I B]

Dave has an RB30 bottom end but yes a new crank is the best.

[exXU1]

Dave has an RB30 bottom end but yes a new crank is the best.

<{POST_SNAPBACK}>

far comment guys , only trouble is , the crank has been metalaxed ( spellings wrong ), balanced , journals opened etc etc.

[exXU1]

Dave has an RB30 bottom end but yes a new crank is the best.

<{POST_SNAPBACK}>

fare comment guys , only trouble is , the crank has been metalaxed ( spellings wrong ), balanced , journals opened etc etc.

The external pump that you suggested Steve sounds viabel , need more info if you don't mind Steve.

Edited November 14, 2005 by exXU1

[pnblight]

guy its a rb30 crank so he cant use a rb26 crank as the stoke would be wrong and the whole point of using the rb30 block is for the longer stroke.

Dave i think your only really opinion is to buy a jun collar and fit it to your crank Proengines stated it takes a couple of hours to fit. As you have treated the crank it would seem a wait to weld it up and regrind so best bet buy the jun collar.

pete

ps i would definitly address this weakness for what you are trying to do

[N I B]

Next time your at Grants ill come see you about the Exturnal job.

[Fitzpatrick Speed Works]

Dave it should not be a problem and its easy to do for any machining shop, it shouldnt hurt your bottom end to drop the cradle and big ends take the crank out and get the collar fitted @ around $500 its a cheaper alternative to new rebuild!!!

[R32 TT]

Dave it should not be a problem and its easy to do for any machining shop, it shouldnt hurt your bottom end to drop the cradle and big ends take the crank out and get the collar fitted @ around $500 its a cheaper alternative to new rebuild!!!

<{POST_SNAPBACK}>

If I need this done to my R32, and the engine is in the car. How much do you think it would cost to get done? Is it a complete engine removal to do? (I assume it is..)

This is all a bit of a worry. I have heard of stock oil pumps failing, needing this collar fitted, having to fit a Tomei oil restrictor and a baffled sump. Sounds like any R32 making 350-450 hp at the fly more or less needs to be pulled apart and these things done before you can be 'safe' yeah? Assuming you want to drive it at the 'occasional' track day?

I guess the question is - "how often do these things fail?"

Am I better off just driving it and only pulling it out after a failure?

[exXU1]

If I need this done to my R32, and the engine is in the car. How much do you think it would cost to get done?  Is it a complete engine removal to do? (I assume it is..) 

This is all a bit of a worry. I have heard of stock oil pumps failing, needing this collar fitted, having to fit a Tomei oil restrictor and a baffled sump. Sounds like any R32 making 350-450 hp at the fly more or less needs to be pulled apart and these things done before you can be 'safe' yeah?  Assuming you want to drive it at the 'occasional' track day?

I guess the question is - "how often do these things fail?"

Am I better off just driving it and only pulling it out after a failure?

<{POST_SNAPBACK}>

Peter, Steve , Daniel,

thanks for your input. Welding the crank ( even with top crank specialist is not an option to me )

purchased a jun collar today and crank is out.

[Duncan]

For those that have seen a problem with the smaller drive, has that been on a new oil pump, or on an old worn one?

I have looked at a couple of old pumps and they definately show wear from the smaller collar.....but how long until it would actually fail?

Does anyone have a first hand experience?

[proengines]

I have one here at the moment that is looking pretty close to letting go. I have some photos if you're interested. I also have some photos of the process of fitting a crank collar, I did one on an RB30 crank not long ago. It's a good couple of hours work to do but comes up really well. It does add up a bit though, the cost of the collar plus around $200 labour to fit it.

I would definately run the bigger drive, the early R32 one doesn't engage a lot of the pump gear.