What are these items on 1uz?
- Thread starter 200sx-v8
- Start date
The 1UZFE EGR Delete Kit is available for sale here.
The long dowl thingee is your cam belt tensioner, when you replace the cam belt you will see how this works. The belt driven pump thingee is a hydraulic fan pump which is used as opposed to electric thermo fans, you can remove this totally and run a shorter belt or rip the guts out of the pump and retain it as an idler.
The belt is run around the idler for three reasons.
First is to increase the wrap on the crank pulley to give it sufficient friction area to transmit the power to drive the air conditioner, power steering and alternator. The belt could be driving up to 10kw of accessories at it's peak. The small contact area you would create would increase the wear rate on the belt.
The second reason is to give sufficient wrap to run the pump. Airconditioning can take up to 7kw to drive. You will create the same problem as point 1 but from a different force.
The third was to run either the hydraulic pump or the viscous fan, depending on what version of the engine you are using.
The obvious side effect will be belt squeal when you wind on lock at parking speeds. We've all heard it and know how annoying it would be to live with.
First is to increase the wrap on the crank pulley to give it sufficient friction area to transmit the power to drive the air conditioner, power steering and alternator. The belt could be driving up to 10kw of accessories at it's peak. The small contact area you would create would increase the wear rate on the belt.
The second reason is to give sufficient wrap to run the pump. Airconditioning can take up to 7kw to drive. You will create the same problem as point 1 but from a different force.
The third was to run either the hydraulic pump or the viscous fan, depending on what version of the engine you are using.
The obvious side effect will be belt squeal when you wind on lock at parking speeds. We've all heard it and know how annoying it would be to live with.
Peewee
New Member
I was running with an incorrect belt layout for about a year.
I only had about 20degrees less wrap on the crank (I went crank-alt-tens, instaed of crank-tens-alt).
As soon as the alternator got any load the belt would squeal constantly.
That idler pulley adds about 60degrees wrap on the crank (if you run the aircon)
Without it you'll have a constantly squealing belt.
I only had about 20degrees less wrap on the crank (I went crank-alt-tens, instaed of crank-tens-alt).
As soon as the alternator got any load the belt would squeal constantly.
That idler pulley adds about 60degrees wrap on the crank (if you run the aircon)
Without it you'll have a constantly squealing belt.
