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R33 Water Pump Destroyed Twice Need Help

lukes bizzy

By lukes bizzy,
in General Maintenance

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lukes bizzy Contributor

lukes bizzy

Posted
Posted

last week i changed the water pump in my r33gts-t s2 as it had a small leek at the top ,i used a second hand pump that was almost new- after putting it all back together and using a new genuine timming belt there was a dull whinning sound coming from it as it was warming up i was giving it slight revs to try and pin point the sound then the hole front off the pump ripped itself to peices and dropped the fan into the radiator wich caused enough damage to have to buy a new radiator. i thought it might have been the second hand pump so i got a brand new one and radiator and spent most of the week re installing it & finished it today and it was all sweet so drove it 50km to work with no probs but at midnight when i went to leave i gave it a rev in nutral to aroumd 3500rpm then it all shat itself like the week before --now my cars left at work 50+km from home with the water pump shatered again -so i need help what could i be doing so wrong --could i be overtightening the alternator/waterpump belt that might cause it to rotate of ballance then brake with a sudden rev or something else ?

this is the first pump it still spins so it hasnt seezed up the second new pump has brocken in the same way

post-32884-1224257671_thumb.jpg

GTRsean Grand Master

GTRsean

Posted
Posted

Damn, never seen that happen before! That's not cool. When I've played with em I've never had that happen.

Now question time:

Genuine or non genuine nissan pump.

Did you torque bolts in accordance with the manual.

Did you check tension of belt in accordance with manual.

Are the mating surfaces true (flat).

PLYNX Mentor

PLYNX

Posted
Posted

This happened to me as well ! For me it was the water pump pulley was bent and was not running true ! It looked liked it was and took quite a while for me to find ! The previous onwer must of had an accident and bent the pulley but in stead of gettinig a new pulley they machined the inside of the pulley. What this does is makes the belt run true but transfers the wobble to the water pump shaft. The vibration then shatters the water pump. I replaced the pulley (VL holden 6 is the same pulley ) and that fixed it !

So I'd say something aint running true on yours as well.

lukes bizzy Contributor

lukes bizzy

Posted
  • Author
Posted

Damn, never seen that happen before! That's not cool. When I've played with em I've never had that happen.

Now question time:

Genuine or non genuine nissan pump. BOTH GENUINE

Did you torque bolts in accordance with the manual. NO

Did you check tension of belt in accordance with manual. NO

Are the mating surfaces true (flat). NOT SURE

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