GU 4500 plastic fan hub splitting.

Submitted: Sunday, Feb 19, 2006 at 09:18
ThreadID: 30920 Views:1670 Replies:4 FollowUps:1
This Thread has been Archived
Has any one with experienced their fan splitting on the hub that surrounds the viscous hub where the blades are mounted. Mine has now started to split this hub from front to back in between every blade around this hub. If this has happened to you were you given a reason why this happened as the spare parts in the local Nissan dealership in Mackay is blaming heat. All I know is that I have a similar type of fan on tractors and this does not seem to be a problem with them and I would expect that they would get a lot hotter than the one Nissan one. Another reason that he tried to use was that it had been used in fording deep water but this doesn't apply as the vehicle has never been in water that would have been over the side steps. The vehicle has done 164,000 km.

Chris L
Back Expand Un-Read 0 Moderator

Reply By: bombsquad - Sunday, Feb 19, 2006 at 10:01

Sunday, Feb 19, 2006 at 10:01
yep, mine (2.8) did the same at 120,000km. Spat a couple of blades off but only small ammount of damage to shroud, not to radiator. Unfortunately the 2.8 has a different offset to the 4.2 and 4.5, so instead of an $85.00 non genuine, had to go with the $335.00 genuine. It does seem strange to use the excuse of heat, its purpose is to blow hot many service centres!

Cheers Andrew
AnswerID: 155813

Reply By: Footloose - Sunday, Feb 19, 2006 at 10:05

Sunday, Feb 19, 2006 at 10:05
Your dealer's excuse sounds like a lot of hot air to me.
AnswerID: 155814

Reply By: Kiwi Kia - Sunday, Feb 19, 2006 at 10:37

Sunday, Feb 19, 2006 at 10:37
One possible reason is that it has been removed at some time (timing belt change?) and when it was put back the attachment bolts to the hub were over tightened. However, all plastics degrade with time and heat.
AnswerID: 155818

Reply By: V8Diesel - Sunday, Feb 19, 2006 at 10:45

Sunday, Feb 19, 2006 at 10:45
Same happened to my 98 GU 4500. Very boring indeed.

Nothing to do with heat or water BTW, in the trade it's called shoddy manufacturing.

While the fan is out, take off the plastic radiator shroud. You will most likely find the 5/8" diameter 'feet' that hold it away from the core have almost worn a hole through the tubes too. That's a nice little time bomb Nissan build in too. Apart from that, the TB45E is as close to a bullet proof 4x4 as you will ever get.
AnswerID: 155821

Follow Up By: Billowaggi - Monday, Feb 20, 2006 at 00:32

Monday, Feb 20, 2006 at 00:32
Hi V8 , so you have found them too! two of my mates have GU 4.2 td's and had damaged radiators through these plastic feet, unfortunately with an aluminium core a new radiator is the only fix, ouch!
Regards Ken.
FollowupID: 409886

Sponsored Links