Water Pump for SC400

[stevechumo]

I bought the SC400 used and the car has 136,000 miles on it. I'll be changing the timing belt but also don't know if I should replace the water pump.

As far as I see, there's no coolant leaks or anything. However, I'm not sure if I should replace the water pump at the same time to save work for the future or save the money for now. Also, I can't contact the previous owner for any info. Could anyone please help me out to decide this situation? What does the factory maintenance say?

Any idea is greatly appreciated!

 

[Lextreme II]

You should change it since things are out. Its only 80 dollars or so. Here are some articles on it. www.lextreme.com/tech.html and looking for timing belt part 1 and part 2.
You should change the water pump along with tensioner pulley, crank and cam seals.

 

[Tonyd]

Hi,

As regards the tensioner pulley, I'm replacing mine at the same time as replacing the water pump and the cam belt. However, Lexus in the UK want about £80 ( $150 US approx) for each of the idler pulleys, theres two per engine and I have two engines......ouch.....

Is there a cheaper alternative than the Koyo bearing Lexus provide..........Koyo do not sell this particular bearing outside Japan. ( I wonder why?)

Anyone got an alternative supplier?

Cheers,

Tony

 

[Lextreme II]

Only the left side cost more, the right side is very cheap. There are aftermarket pulleys on ebay, but i would stick with oem.

 

[stevechumo]

Only the left side cost more, the right side is very cheap. There are aftermarket pulleys on ebay, but i would stick with oem.

So how many belt tensioners or pulleys are on each side? I thought there's only 1 on each side? Could you please help me out by stating what's exactly called for each item and how many are needed? I'm kinda lost when looking at the picture only.

 

[Lextreme II]

here are some pictures http://parts.lextreme.com or pm for details. We are only 20 miles away from you.