Fan Clutch Removal - How to get this thing off?

[Bloodyaussie]

Wow! It is something new, visco and pulley is not coincidence of centers.
I'm not sure is it original part from Nissan?
May be easiest way is to change the visco + pulley to original Nissan?
Also I think that after vibration the water pumps bearing will die soon.

Yeah never seen that set up and not sure... might ask Krbrooking to take a pic of his as he has a 2.8.

Thats got me stumped?

[oncedisturbed]

that can't be healthy being off centre like that

[modustollens]

I agree that the vibrations that happen could have bad consequences. Plus, when the hose clamp is not on the amount of movement is great enough that the fan blades smash into the plastic radiator shroud.

It is a small space too so it is hard to peek in and see what is still holding the fan on. Perhaps I shall have to cut it off and find a replacement part or take it back to the shop and get the guy who put it on to take it off.

MT

[rkinsey]

Here's a couple of snaps form the phone:





I put a hose clamp on the shaft to stop the massive amount of vibrations - it works to reduce it by about 30 percent but it won't last and it loosens after a while. There is, as you can see, nothing on the fan for bolting or securing it to either the shaft or the pully/water pump assembly in front. I don't even see how the mounting bracket for the fan would attach to the fan.

You can see how the hole for the fan is way bigger than the shaft - it wobbles up and down and from left to right.

Any ideas?

MT

That looks like the Viscus Clutch has sheered off to me. Not sure how stretched for time you are but I would try and take the whole lot off to inspect for damage to all parts including the water pump. You definitely do not want to overheat and cook the motor.

Just my two cents worth...

Cheers,

Rob

[BigRAWesty]

That looks like the Viscus Clutch has sheered off to me. Not sure how stretched for time you are but I would try and take the whole lot off to inspect for damage to all parts including the water pump. You definitely do not want to overheat and cook the motor.

Just my two cents worth...

Cheers,

Rob

I think your onto something there. That's not right.. You might as well pull the radiator out as you'll be replacing the pump..

[modustollens]

Thanks guys. The engine was only installed a few months ago and I have not driven it a lot; and it has been only a week with this vibration/noise problem - though there is more noise than vibration. The temperature is always around 1/4 of the way up the temp scale. No signs of overheating yet but I like to stay ahead of problems. I don't think there is any damage, yet.

What I am interested in learning is how the fan assembly comes off once the four bolts of the viscous clutch are removed. Assume I have that clutch. Assume I have the four bolts removed. Now what?

Should the whole assembly slide forward on that shaft? The fan will not go back toward the pulley nor will it slide off the end of the shaft. Perhaps there is a cap or pin on the front side of the fan?

Perhaps its time for a hack-saw or a torch?

MT

[Wine_maker]

This is photo of mine.
Sorry for quality of photo it is made using a radiator cup lol

Agree that it is better to change the whole part.

Also, I think your visco isn't work properly. They just drilled the whole and tighten it to the shaft with bolt.

[modustollens]

Thanks. I don't think there was a visco there at all! Do you think it will be easy to get this part here in Semey? The plastic fan is cracked too. So, maybe I can just cut it off or go back to the shop and see how those guys secured it when they installed the engine. I offered those guys the Russian engine service manual but the were offended by that saying 'they knew what they were doing.' Seems doubtful now that given the devil that hides in the details.

Thanks,

MT

[rkinsey]

Thanks guys. The engine was only installed a few months ago and I have not driven it a lot; and it has been only a week with this vibration/noise problem - though there is more noise than vibration. The temperature is always around 1/4 of the way up the temp scale. No signs of overheating yet but I like to stay ahead of problems. I don't think there is any damage, yet.

What I am interested in learning is how the fan assembly comes off once the four bolts of the viscous clutch are removed. Assume I have that clutch. Assume I have the four bolts removed. Now what?

Should the whole assembly slide forward on that shaft? The fan will not go back toward the pulley nor will it slide off the end of the shaft. Perhaps there is a cap or pin on the front side of the fan?

Perhaps its time for a hack-saw or a torch?

MT

Drop the radiator, shroud and then take some photos of it for us. Should put some more light on the subject.

I have the RD28T as well so I will take some pics of the fan assembly from the front if I can in teh morning and post them up if you like.

Might be able to see it better from a different angle.

Cheers,

Rob

[Wine_maker]

I called to Nissan Part shop here in Almaty.

Prise list for original parts on stock:
Visco clutch - 33 500 tg (218 USD)
Fan - 13 500 tg (88 USD)
Puley - 25 500 tg (166 USD)
Water pump - 9 800 tg (64 USD)

But I don't know how easy to find it in Semey. In bad case I can buy it for you and send by train or bus.

But before buy something, you should go to those mechanics and ask them how it can happened? I thing it is they fault and they should remain you money for parts and works.