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Gtir Motorsport club » General Discusion » Gtir related Discussion » new type of crank pulley..

new type of crank pulley..

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1 new type of crank pulley.. on 23rd January 2016, 4:18 pm

Stu

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Someone just posted this link on facebook.
Looks like a decent item has been developed Smile
If I have any more issues I think I 'll go with one of these. http://www.garage7.com.au/home/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=2873&category_id=596&option=com_virtuemart&Itemid=53
Whats everyone's thoughts?


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2 Re: new type of crank pulley.. on 23rd January 2016, 4:34 pm

Cosmic73

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We use these on all our diesel engines but call them damper pulleys,
2 huge discs seperated by silicon,
Same thing, they reduce and smooth out torque spikes from engine firing and/or engine order resonances making everything on the otherside of the crank last longer by not shaking itself to death.
If its been developed and 'tuned' properly then it certainly wont do any harm, biggest benefit would be the gearbox lasting a lot longer,
Happy days Very Happy

3 Re: new type of crank pulley.. on 23rd January 2016, 4:43 pm

Stu

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Great insight there.
I had heard the alloy ones were no good because of the vibrations through the crank.
Hadn't realised it affected the gearbox also.
Shame the price of these ones are so high lol


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4 Re: new type of crank pulley.. on 23rd January 2016, 5:20 pm

Mr B

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torsional load on crank causes harmonic frequencies (bit like a tuning fork) at certain rpm points this can resonate which can become very destructive so the rubber in the damper pulley helps absorb this vibration & disperses it as heat.
Lot of people went crazy on the cheap & pretty but junk solid alloy pulleys, many had issues with oil leaks either due to poor tolerance or rapid wear on contact point of seal lip as no hard sleeve was fitted & the alloy was low grade .
This maybe good quality product but new oem harmonic damper is 140USD (100gbp) you can check & improve timing marks on oem pulley while doing a rebuild . most people doing a rebuild would be wise fitting new damper pulley if one they got looks to be 20+ years old .

5 Re: new type of crank pulley.. on 23rd January 2016, 5:29 pm

Stu

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And oe ones are proven to last between 20 and 25 years Smile


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6 Re: new type of crank pulley.. on 23rd January 2016, 5:47 pm

mc_hawkings24


Didn't know you could buy new crank pulleys i will have to enquire.
would this be the part number 1230354C00

7 Re: new type of crank pulley.. on 23rd January 2016, 6:07 pm

Cosmic73

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Mr B, Are you saying current crank pulleys are a damper type too?
I  assumed they were solid,

8 Re: new type of crank pulley.. on 23rd January 2016, 6:10 pm

nomad

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No they are damper as far as im aware
...


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9 Re: new type of crank pulley.. on 23rd January 2016, 6:20 pm

Stu

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Yes that are damper ed. Vulcanised rubber center with an outer metal ring..


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10 Re: new type of crank pulley.. on 23rd January 2016, 6:20 pm

Cosmic73

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Bugger me, glad i found out now before i fitted the old one which must be well past its sell by,
shit hit the fan

11 Re: new type of crank pulley.. on 23rd January 2016, 6:21 pm

Stu

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@mc_hawkings24 wrote:Didn't know you could buy new crank pulleys i will have to enquire.
would this be the part number 1230354C00
Yes.

http://www.frsport.com/Nissan-12303-54C00-OEM-Crank-Pulley-Damper-SR20DET-RNN14-Pulsar-Sunny-GTiR_p_59960.html


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12 Re: new type of crank pulley.. on 23rd January 2016, 7:42 pm

nomad

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I didnt see the price properly of the new one .... thought it said 130 not 630 Shocked Shocked Shocked Shocked


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13 Re: new type of crank pulley.. on 23rd January 2016, 7:55 pm

mc_hawkings24


will have to ring up nissan and i forgot again to ring up about my rear subframe bush cups as they only sent 3.

14 Re: new type of crank pulley.. on 23rd January 2016, 7:56 pm

Stu

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@nomad wrote:I didnt see the price properly of the new one .... thought it said 130 not 630 Shocked Shocked Shocked Shocked
Shocking price isnt it mate lol


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15 Re: new type of crank pulley.. on 23rd January 2016, 8:04 pm

nomad

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Thats an appallling price ... even at half the price of that i wouldnt consider it .....


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16 Re: new type of crank pulley.. on 23rd January 2016, 8:20 pm

mc_hawkings24


£441.58 is that not a bargain? i may have to buy 2

17 Re: new type of crank pulley.. on 23rd January 2016, 9:56 pm

gtir_woody

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I never understand how these things are always so expensive lol

18 Re: new type of crank pulley.. on 24th January 2016, 3:23 pm

Moss Ali


Aren't they available from Nissan?

19 Re: new type of crank pulley.. on 24th January 2016, 3:58 pm

Stu

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Yes that are available from Nissan. Think Sye priced them up at £147 + vat.


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20 Re: new type of crank pulley.. on 24th January 2016, 4:04 pm

nomad

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Maybe see if we can get a group buy together and get bebb or cant remember who is who works for nissan to get some discount


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21 Re: new type of crank pulley.. on 24th January 2016, 4:08 pm

Digitalfaze

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@mc_hawkings24 wrote:will have to ring up nissan and i forgot again to ring up about my rear subframe bush cups as they only sent 3.

they are £147 from nissan and available, bolt and washer come from japan and £15 each Very Happy

http://www.avaloncreative.co.uk

22 Re: new type of crank pulley.. on 24th January 2016, 4:46 pm

Mr B

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Yeh could be worth asking bebb if could get  2 or 3 if people interested.
Also ask Erics in US as was doing them well under 100gbp (think was around 85gbp)



Last edited by Mr B on 24th January 2016, 4:47 pm; edited 1 time in total

23 Re: new type of crank pulley.. on 24th January 2016, 4:47 pm

mc_hawkings24


Only have the washers not that there needed anyway hehe

24 Re: new type of crank pulley.. on 24th January 2016, 4:47 pm

johnny gtir

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@nomad wrote:Maybe see if we can get a group buy together  and get bebb or cant remember who is who works for nissan  to get some discount
This is exactully what we need even if it's 5 people. I trying to get my mates to click onto this sort of thing we all buy sets of tyres one or two sets a year I buy a set week later someone else dose am like if we were buying 8 tyres instead of 4 plus my mams car was due two suddenly were buying 10 tyres so some discount must be availible

25 Re: new type of crank pulley.. on 24th January 2016, 10:58 pm

Moss Ali


I'd be up for a group buy.

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