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Old 09-22-10, 09:56 PM   #1
Vadim540i
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Default Timing belt parts.

I will be doing timing belt replacement probably next weekend. It's for 97 sc400. I want to replace drive belt and tensioners, as well as water pump and thermostat. What else should I replace while in there? Crank seal? Can you guys point me in right direction, what parts should I get? Also, I went to sewell parts website and they don't have all the parts that I need. What's the best place to get oem parts from?
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Old 09-23-10, 10:31 AM   #2
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Water pump= Aisin

Timing belt = Mitsuboshi / Unitta / Gates

Tensioner = OE or NTN

Idler = Koyo

Thermostat = Kuzeh

Cam and crank seals = Koyo

I bought my Aisin pump from ebay and the rest on azautohaus.com
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Old 09-23-10, 10:42 AM   #3
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Autohaus is great. Free shipping on orders over $50.
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Old 09-23-10, 11:13 AM   #4
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Try this... https://secure.sewellparts.com/retri....php?quote=711. All specific to the 99MY SC300.

Darrel
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Old 09-23-10, 11:27 AM   #5
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Quote:
Originally Posted by JesLet View Post
Water pump= Aisin

Timing belt = Mitsuboshi / Unitta / Gates

Tensioner = OE or NTN

Idler = Koyo

Thermostat = Kuzeh

Cam and crank seals = Koyo

I bought my Aisin pump from ebay and the rest on azautohaus.com
this is perfect, i gotta do mine as well
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Old 09-23-10, 11:30 AM   #6
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Anybody know the change interval on it after the 1st replacement? Mine was done already at 105k. I'm currently at 152k.
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Old 09-23-10, 11:34 AM   #7
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Edit: Cam / crank seals = NOK

Sepentine belt tensioner (if needed, they tend to make rattle noise with over 100K miles ) = OE or Goodyear brand from Rockauto.com

Last edited by JesLet; 09-23-10 at 11:38 AM.
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Old 09-23-10, 11:41 AM   #8
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Damn JetLet, I saved a few bucks from your list! Wondering if I do a 2jz-gte swap, can i just buy waterpump front assembly and reuse the rear assembly?
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Old 09-23-10, 11:46 AM   #9
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Quote:
Originally Posted by ClearP View Post
Damn JetLet, I saved a few bucks from your list! Wondering if I do a 2jz-gte swap, can i just buy waterpump front assembly and reuse the rear assembly?
Don't know the difference about the water pump between 2JZGE and 2JZGTE, I would buy the whole assembly though since there are issues that if you just buy the half it could be 10 or 11 bolt.

Also buy new t-stat and o-ring for it as well as the 3 o-rings found on the U-shape pipe under the distributor.
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Old 09-23-10, 11:49 AM   #10
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Do not over-torque the tiiming belt idler bolt or it will strip. That one bolt is attached into the aluminum oil pump asembly. If you stripped it just Helicoil that hole. That's what happened to mine, previous owner/mechanic over-tigthened that sumbi@tch.
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Old 09-23-10, 05:45 PM   #11
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Quote:
Originally Posted by Sewell View Post
Try this... https://secure.sewellparts.com/retri....php?quote=711. All specific to the 99MY SC300.

Darrel
Thanks a lot but can you do the same for 97 sc400? Because I sold my SC3 and now I have SC4.
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Old 09-23-10, 05:53 PM   #12
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Quote:
Originally Posted by JesLet View Post

Sepentine belt tensioner (if needed, they tend to make rattle noise with over 100K miles ) = OE or Goodyear brand from Rockauto.com
Mine does have this noise, do I have to replace the whole assy or just the bearing inside?

Thanks a lot for the help
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Old 09-23-10, 08:32 PM   #13
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Use a long screwdriver like a stethoscope, if you can hear noise from it I would change the whole assembly.
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Old 09-24-10, 01:27 PM   #14
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Bump .
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Old 09-24-10, 02:27 PM   #15
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Quote:
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... whole assy..?
It's a 166200W026 part number for the belt tension assembly.
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1995, 400, belt, lexus, ls400, mitsuboshi, parts, picture, ring, sc, sepentine, sewell, timing, unitta, w01331619331, w01331644162

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