smamas

All,

Just completed timing belt, water pump, and all ignition replaced on my LS 400 with 152K miles on original timing belt, water pump, etc.. Amazingly the old belt had only minor cracking! Yes, I had been inspecting it for the last few years, and finally did the job. Honestly I thought it was a very easy job, once you found all of the "hidden" bolt heads!!!

What a great way to save huge service bucks!

NisMax

Awesome DIY job.

Kansas

I'm not amazed. Timing belts on Lexus cars rarely break but are instead trashed (like mine was) when another part in the system fails. I hope you changed all the auxiliary parts (idlers, water pump, etc.) because the failure of one of those are what causes timing belt failure.

smamas

yes, all replaced with OEM, included new tensioner, water pump, every o-ring along the way, radiator hoses, all the ignition except for the coils.

I also had a power steering pump leak, so replaced the o-ring on the reservoir and put a bolt in that IAC Valve port. I think the O-ring was my leak as it was very"D shaped".

It started right up and ran much quieter. The only thing I have NOT replaced is the fan belt idler pulley, and I am thinking I should do that too.

Trevorsls4

im doing all this now its not so bad just gotta find time along with 12 hour days at work major props for the diy'age

jerryparks

iTrader: (1)

Jim: Are you saying that if one changes the other parts related to the timing belt and skip the timing belt if it looks good is OK; you should get a lot more miles from it? I can see
changing the aux items becuae they appear easier, and passing on the belt. All that lining up the marks and other steps on the belt may be more than I would want to attempt. MOre of your comments on this would be appreciated. Thanks!

deanshark

No that's not what he's saying. He's saying they don't usually break on their own. If the tensioner goes or the water pump seizes up, or something like that then the belt will go. If you have it off put a new one in. You will have it off b/c to get all the other stuff out, the belt comes off first. Lining up the marks isn't hard, you just have to follow all the directions you are reading about. If you can read, you can do it.

dashan

Could you post the part No of all the OEM parts that you put in?
That would be very helpful.
Thanks

smamas

Sure can! I also did valve cover gaskets which I have included and put at bottom of the parts list.

1997 LS 400 Parts List

Description Part Number Quantity Needed

Timing Belt 13568-59045 1
Water Pump 16100-50023-83 1
Water Pump O-Ring 96761-24019 1
Idler Pulley No.1 13503-0F010 1
Idler Pulley No.2 13505-50022 1
Timing Belt Tensioner 13540-50030 1
Thermostat 90916-03129 1
Thermostat Holder O-Ring 96761-35035 1
Water Pump Gasket 16325-62010 1
Spark Plugs 90919-01178-83 8
Spark Plug Wires 90919-22379 1
Distributor Caps (L&R) 19101-50020 2
Rotors(L&R) 19102-50020 2
Upper Radiator Hose 16571-50070 1
Lower Radiator Hose 16572-50090 1
Power Steering Pump Reservoir O-Ring 90301-11016 1

TO REPLACE VALVE COVERS
Valve Cover Gasket Set 11213-50021 1
Spark Plug Gaskets 11193-15010 8
Washer, seal 90210-07001 16
Form in place Gasket 00295-00103 1
Throttle Body Gasket 22271-50010 1
PCV Valve 12204-50011 1
PCV Valve Grommet 90480-18001 1

steveski

Awesome right up - thanks for the part numbers. I never did the job myself. I am coming up on my 3rd belt change soon. Even though they last well beyond 100k miles I feel better sticking by the published interval

smamas

Thanks! I have a spare truck, so my wife could drive the truck and therefore I wasn't pressured to do the job over a weekend.

I really enjoyed doing it....my wife thinks I am sick!