1999 LX470 Fan wobble/chirp (1 Viewer)

ClassyJalopy

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Yep, like a few already said, get an AISIN fan bracket and replace it. If you are anywhere near timing belt being due, do that at the same time since you are most fo the way there already when replacing the bracket.
 
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Sheffield, AL
I am replacing my TB soon and am thinking the following list should be replaced in process, correct?

1. Timing Belt
2. Water Pump
3. Thermostat
4. Serp Belt
5. Fan Bracket
6. Fan Clutch
7. Idler Pulley
8. Tensioner Pulley

anything else that “you might as well do while you’re in there”?
 

flintknapper

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I am replacing my TB soon and am thinking the following list should be replaced in process, correct?

1. Timing Belt
2. Water Pump
3. Thermostat
4. Serp Belt
5. Fan Bracket
6. Fan Clutch
7. Idler Pulley
8. Tensioner Pulley

anything else that “you might as well do while you’re in there”?

Crank seal (front main)
Cam seals IF they are leaking (most will not be).
 

flintknapper

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How did this thread turn from a tech forum diagnosing a specific problem to general advice for TB services.

The same way arguments with a wife start out with something fairly innocuous and branch out to include everything you EVER did (that they remember). No reasonable explanation for it. It just happens. ;)


Seriously, most threads end up going off on tangents (usually related and usually beneficial).
 
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Apr 16, 2005
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TEXAS !!!
I am replacing my TB soon and am thinking the following list should be replaced in process, correct?

1. Timing Belt
2. Water Pump
3. Thermostat
4. Serp Belt
5. Fan Bracket
6. Fan Clutch
7. Idler Pulley
8. Tensioner Pulley

anything else that “you might as well do while you’re in there”?

If you are on the second TB/WP service, 180k mi, also do the radiator. It will fail soon thereafter.

Here is a list I had from the last time. I did all these items last go round. Check the part numbers yourself. I haven't looked at this in a few years.

TIMING BELT COMPONENTS
Timing Belt 13568-09070
Idler Sub-Assy, Timing Belt, NO.1 13505-0F010
Idler Sub-Assy, Timing Belt, NO.2 13503-0F010
Tensioner Assy, Chain, No.1; Tensioner Assy, Timing Belt 13540-50030
L & R Camshaft seal (2) (SEAL, OIL FOR CAMSHAFT SETTING) 90311-38065
Front Crank seal ( SEAL, FOR OIL PUMP) 90311-A0001
ACCESSORY DRIVE COMPONENTS
Idler Pulley 16604-0F010
Serpentine belt 90916-02586
Serpentine Belt Tensioner Assy 16620-0W100
Fan Bracket replaces (16307-50012) 16307-0F010
Fan Clutch (Fluid Coupler-Fan) 16210-50102-optional
Fan Clutch lock nuts (x4) 90029-07010- if worn
WATERPUMP/RADIATOR/COOLING
Water-pump & Gasket 16100-09201
Coolant FIPG Seal Packing 1282B 08826-00100
O Ring (For Water Inlet Housing); Ring, O(For Water Inlet). *119; Engine No.=3xxxxxx; Engine No.=5xxxxxx; Towing Package-With(North America,W(Engine Oil Cooler)),*145 96761-35035
Upper Radiator hose (HOSE, RADIATOR, NO.1) 16571-50150
Lower Radiator hose (HOSE, RADIATOR, NO.2) (From thermostat) 16572-50150
Hose, Water Bypass- Front 16261-50090
Thermostat 90916-03100
Thermostat gasket 16346-50010
Radiator Cap 16401-67150
Radiator- DENSO 221-3152
Gallons Toyota SLL 50/50 Coolant (3gal)
HEATER T HOSES
Hose, Heater Water, Outlet A 87245-6A180
Hose, Heater Water, Outlet B 87245-6A190
Hose, Rear Heater Water Outlet, C 99556-20155
Hose, Rear Heater Water Inlet, A(From Engine) 87245-6A800
Hose, Heater Water, Inlet B 87245-6A210
Hose, Heater Water, Inlet A 87245-6A220
T-Connector Connector, Heater Water Hose; Connector, Heater Water Hose, No.2; Pipe, Heater Water; Pipe, Heater Water Inlet, A; Pipe, Heater Water Inlet, C; Pipe, Heater Water Outlet, A; Pipe, Heater Water Outlet, C 87248-60460
ENGINE OIL COOLER LINES
Oil cooler Return Hose (Hose Oil Cooler) 15777-50030
Inlet Hose Engine Oil Cooler (HOSE C, WATER BY-PASS, NO.5) 16282-50040
Water Bypass Hose Engine Oil Cooler (HOSE B, WATER BY-PASS, NO.4. (J) ) 16281-50030
 
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nope
any comments on the ASIN vs OEM Toyota water pumps? The ASIN pumps seems to have review that indicate they fail at a high rate and the OEM look like they are Made in China. What do folks use and is there a source I should consider?
 
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nope
as a follow up i purchased all oem parts to do the timing belt, water pump, fan bracket, fan clutch, new hoses, heater t's, new radiator.

the noise and wobble have seemed to go away.
 

flintknapper

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can anyone here chime in if this sounds like its related to those 4 bolts that the blue part attaches to the fan clutch bracket?


'Noise' is quite often a poor diagnostic tool for narrowing down issues at the front of an engine....simply because it could be SO many things.

Removing the serpentine belt, hand turning each pulley/component to look for issues is the first step. If nothing notable found then start the engine (serp belt still removed) and see if the noise is still present. IF it is....then we know it isn't related to any of the external pulleys/components. Don't run the engine for more than a few minutes.

So....you'd be looking at items behind the timing belt covers. (Timing belt, Water Pump, Tensioner, Idler pulleys).
 

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