Does the time belt in a 3.0 give warning

yotaknows · 02-20-2007, 08:32 PM

My 88 4Runner has 255000 on it and runs strong. Does the timing belt give any warning noise if it needs changed? Can I check it somehow without taking everything apart? Any thoughts are appreciated.

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Nic · 02-20-2007, 10:15 PM

From my experience, belts typically do not give any warning they are going to fail, they just break and that's it. I have had one jump time once, but that was just as bad as breaking.

thook · 02-20-2007, 10:58 PM

IMO, pulling the timing cover is not that big a deal....compared to if the timing belt breaks. Wouldn't take you long. Shouldn't be more than an hour job. Pull the plug wires, the belts, the radiator hose, water inlet pipe and studs, cover bolts, and then the cover. Look for cracks, fraying, tension, etc. Inspecting the top idler pulley/inlet would be good too with that many miles on it. The bearings should rotate smoothly with no play.That's what I would do, anyway.

da_bigg_wigg · 02-20-2007, 11:15 PM

Has it ever been changed? If not I'd start considering replacing it and the water pump. Might as well do one if you're doing the other...

Schralper · 02-21-2007, 06:07 AM

The warning is the valves hitting the pistons.

thook · 02-21-2007, 07:56 AM

ouch...hehe

da_bigg_wigg · 02-21-2007, 08:01 AM

Quote:

Originally Posted by Schralper

The warning is the valves hitting the pistons.

Not in a 3vze...

Angus1 · 02-21-2007, 08:05 AM

3vze is a non interference motor so when the belt breaks it just stops running nothing gets hurt, except your wallet from the tow home.

ken.vs.ryu · 02-21-2007, 08:16 AM

Just replaced mine at 215k it was working fine but it didn't look the best.

thook · 02-21-2007, 08:23 AM

Quote:

Originally Posted by Angus1

3vze is a non interference motor so when the belt breaks it just stops running nothing gets hurt, except your wallet from the tow home.

Still...ouch. (It would still be a PITA)

da_bigg_wigg · 02-21-2007, 08:43 AM

Yeah and no. Getting stranded sucks, but doing preventative maintenance ain't so bad. It's really not that hard of a job. You can do it on a weekend with a day to spare, depending on your skill level.

yotaknows · 02-21-2007, 10:55 PM

Thanks...I will take the cover off and check it...appreciate all the response.

Jay351 · 02-22-2007, 12:02 AM

well I know when mine broke I had extremely horribly performance prior, a few teeth had broken off and done somthing to the timing.

Mine finally broke when I tried to start it after I got home.

Bumpin' Yota · 02-22-2007, 05:41 AM

I had never dove into an engine until i did my timing belt, water pump and thermostat. Then the next time in I reshimmed my valve train. The thrid time in I fixed the blown HG....and Im sure I can do a timing belt very quickly now.

Just take it slow, follow your FSM to the letter and if you have any doubts take 80 billion pictures! and label stuff as you pull it off of the engine.

Think of it as a stepping stone...

da_bigg_wigg · 02-22-2007, 07:45 AM

Hah, word of advice: when putting the new belt on, the arrows on the cam gears both point UP... My dad and I screwed that one up. The pass side was up, but the drivers side was down. Luckily we fired it up for a second to see if it was right. There's something about a 4runner running on 3 cylinders.... It did fire though, but god was it ever terribly rough!

So yeah, take it slow, read the instructions... That's probably the dumbest thing I've done when working on a vehicle...

wontonrunner · 02-22-2007, 11:06 AM

Quote:

Originally Posted by yotaknows

My 88 4Runner has 255000 on it and runs strong. Does the timing belt give any warning noise if it needs changed? Can I check it somehow without taking everything apart? Any thoughts are appreciated.

Timing belt life for the 3.0 is around 90,000km so if it has been done regularily then it will be due for a new one pretty soon. At the same time change out the water pump and spend the extra cash to change out the tensioner pully and the water jacket. I chose not to change out the water jacket and was putting a new belt and all new idler and water jacket less then 1 month later.

The sound that the timing belt makes just before it is about to go depends on what is causing it. For me it was a squeeling bearing, followed by silence, followed by all the lights on my dash lighting up followed by the smell of burnt rubber and then a tow job. Then there is the 1-2 hours of extra work spent cleaning the belt remains and melted rubber off of every moving surface of each and every pully under the timing cover...There are 5 or 6 of these pullys to clean.

Have fun!!!

thefreqofnature · 04-23-2007, 08:00 PM

my water pump is leaking so I'm going to replace my timing belt and oil pump while I'm in there. I'm also going to replace the belt tentioner and the idler pully. BUT WHAT THE

IS A WATER JACKET?
thanks, thefreq

thook · 04-23-2007, 08:06 PM

The water jacket is just part of the water pump....the casing. Why do you ask?

Bumpin' Yota · 04-23-2007, 08:27 PM

huh?!

I thought that a water jacket is the sum whole of the cooling areas inside of the block containing coolant...hence "water jacket"

You know that the water pump is just an impeller mounted on a chunk of metal that the timing belt turns right? Or do you mean that felt gasket that comes with the waterpump? Or do you mean that additional port from behind the thermostat housing for the oil cooler that only 3vz-e's with the towing package had? Or do you mean the thermostat?

tc · 04-23-2007, 08:35 PM

90k MILES, not kilos.

Regardless, you're WAY overdue!

thefreqofnature · 04-23-2007, 08:40 PM

Read post #17...the guy says he's going to replace his water jacket. I'm relpacing my waterpump and timing belt and stuff and was looking for more info and other things to replace once I'm in there so I did a search and was reading that post where he says he's going to relpace the water jacket. I've always thought the cooling passages inside the block were called the water jacket. It didn't make sense to me so I thought I'd ask. thanks again

Ringmaster · 04-23-2007, 08:43 PM

Quote:

Originally Posted by thefreqofnature

Read post #17...the guy says he's going to replace his water jacket. I'm relpacing my waterpump and timing belt and stuff and was looking for more info and other things to replace once I'm in there so I did a search and was reading that post where he says he's going to relpace the water jacket. I've always thought the cooling passages inside the block were called the water jacket. It didn't make sense to me so I thought I'd ask. thanks again

Pick any coat/jacket, sew up the sleeve's, and the neck, add water VIOLA a Water Jacket.

Water jacket is internal, the engine block and head castings. It is cored when the block and heads are cast. Not much to change.

Bumpin' Yota · 04-23-2007, 08:46 PM

Quote:

Originally Posted by Ringmaster

Pick any coat/jacket, sew up the sleeve's, and the neck, add water VIOLA a Water Jacket.

Water jacket is internal, the engine block and head castings. It is cored when the block and heads are cast. Not much to change.

ok good im not loosing my mind....despite what my coworkers may say!

thook · 04-23-2007, 09:44 PM

No, I'm the one losing my mind, I guess. Just ignore me. I had too much coffee today. I need to drink more water.

95ToyotaPU007 · 04-24-2007, 01:45 PM

Quote:

Originally Posted by Angus1

3vze is a non interference motor so when the belt breaks it just stops running nothing gets hurt...

Number 3 on the list of "Good things about the 3.slo"

I'll tell ya the list is very very short

02-20-2007, 10:15 PM	#2 (permalink)
Nic Registered User Join Date: Jan 2004 Location: Decatur, Alabama Posts: 1,038	From my experience, belts typically do not give any warning they are going to fail, they just break and that's it. I have had one jump time once, but that was just as bad as breaking. __________________ Nic 1997 Tacoma 4X4 Xtra Cab 2.7L 5 speed

02-20-2007, 11:15 PM	#4 (permalink)
da_bigg_wigg Registered User Join Date: Jul 2005 Location: Halifax, NS Posts: 1,250	Has it ever been changed? If not I'd start considering replacing it and the water pump. Might as well do one if you're doing the other... __________________ -1992 4Runner (Medallist Edition) Still given 'er 16 years later -Santa Cruz Bullit -Giant STP1 -Empty Wallet Adam

02-21-2007, 08:16 AM	#9 (permalink)
ken.vs.ryu Registered User Join Date: Aug 2004 Posts: 639	Just replaced mine at 215k it was working fine but it didn't look the best. __________________ http://ps3mods.blogspot.com - http://kenvsryu.blogspot.com 1992 X-Cab V6 5sp Manual 215k SR5 :D runnin 31x10.5 17.8mpg :)

02-21-2007, 08:43 AM	#11 (permalink)
da_bigg_wigg Registered User Join Date: Jul 2005 Location: Halifax, NS Posts: 1,250	Yeah and no. Getting stranded sucks, but doing preventative maintenance ain't so bad. It's really not that hard of a job. You can do it on a weekend with a day to spare, depending on your skill level. __________________ -1992 4Runner (Medallist Edition) Still given 'er 16 years later -Santa Cruz Bullit -Giant STP1 -Empty Wallet Adam

02-22-2007, 12:02 AM	#13 (permalink)
Jay351 Contributing Member Join Date: Feb 2007 Location: maple ridge, British Columbia, Canada Posts: 8,630	well I know when mine broke I had extremely horribly performance prior, a few teeth had broken off and done somthing to the timing. Mine finally broke when I tried to start it after I got home. __________________ 91 Pickup - xcab - 5sp - 3.0 - SR5 - 4x4 - 250k \|2.25" catback w/ magnaflow cat + glasspack \| Weasy2k cams \| Aisin manual hubs \| Diff breather mod\| Marlin HD clutch \|3" BL \| es3000's \|2" AAL \|1.5" bj spacers \| ISR \| Alpine headunit \| 4" Infinity fronts/5" rears \| 4.88's \|Rear lockright \| 33x12.50" BFG M/T on 15x8" steelies \|Hella 500's \|4" reverse lights\| Grant GT \|idler arm brace\|hella E-codes\| Marlin armor \|SS IFS brace \| %100 Amsoil synthetic http://www.cardomain.com/ride/2572486

02-21-2007, 06:07 AM	#5 (permalink)
Schralper Registered User Join Date: Feb 2007 Location: Orygun Posts: 59	The warning is the valves hitting the pistons.

02-21-2007, 08:05 AM	#8 (permalink)
Angus1 Registered User Join Date: Nov 2005 Location: N.E. Pa. Posts: 207	3vze is a non interference motor so when the belt breaks it just stops running nothing gets hurt, except your wallet from the tow home.

02-21-2007, 10:55 PM	#12 (permalink)
yotaknows Registered User Join Date: Mar 2006 Posts: 61	Thanks...I will take the cover off and check it...appreciate all the response.

02-22-2007, 05:41 AM	#14 (permalink)
Bumpin' Yota Registered User Join Date: Feb 2003 Location: Sarasota, FL Posts: 3,639	I had never dove into an engine until i did my timing belt, water pump and thermostat. Then the next time in I reshimmed my valve train. The thrid time in I fixed the blown HG....and Im sure I can do a timing belt very quickly now. Just take it slow, follow your FSM to the letter and if you have any doubts take 80 billion pictures! and label stuff as you pull it off of the engine. Think of it as a stepping stone... __________________ 3vze, 4x4, sr5, 90, auto, LSD 2x dB Drag World Finalist 2003 Nopi Nat. Street B champ 2004 SBN Street C champ 2004 SBN Advncd NW Champ 2004 Former WR Holder in NW. SPL: 159.8db @ 42hz In loving memory of Jamie Riggs 5/15/85 - 10/8/04

02-22-2007, 07:45 AM	#15 (permalink)
da_bigg_wigg Registered User Join Date: Jul 2005 Location: Halifax, NS Posts: 1,250	Hah, word of advice: when putting the new belt on, the arrows on the cam gears both point UP... My dad and I screwed that one up. The pass side was up, but the drivers side was down. Luckily we fired it up for a second to see if it was right. There's something about a 4runner running on 3 cylinders.... It did fire though, but god was it ever terribly rough! So yeah, take it slow, read the instructions... That's probably the dumbest thing I've done when working on a vehicle... __________________ -1992 4Runner (Medallist Edition) Still given 'er 16 years later -Santa Cruz Bullit -Giant STP1 -Empty Wallet Adam

04-23-2007, 08:27 PM	#19 (permalink)
Bumpin' Yota Registered User Join Date: Feb 2003 Location: Sarasota, FL Posts: 3,639	huh?! I thought that a water jacket is the sum whole of the cooling areas inside of the block containing coolant...hence "water jacket" You know that the water pump is just an impeller mounted on a chunk of metal that the timing belt turns right? Or do you mean that felt gasket that comes with the waterpump? Or do you mean that additional port from behind the thermostat housing for the oil cooler that only 3vz-e's with the towing package had? Or do you mean the thermostat? __________________ 3vze, 4x4, sr5, 90, auto, LSD 2x dB Drag World Finalist 2003 Nopi Nat. Street B champ 2004 SBN Street C champ 2004 SBN Advncd NW Champ 2004 Former WR Holder in NW. SPL: 159.8db @ 42hz In loving memory of Jamie Riggs 5/15/85 - 10/8/04 Last edited by Bumpin' Yota; 04-23-2007 at 08:47 PM.

04-23-2007, 08:35 PM	#20 (permalink)
tc Contributing Member Join Date: Nov 2005 Location: Longmont, CO Posts: 8,372	90k MILES, not kilos. Regardless, you're WAY overdue! __________________ Check out www.coTTORA.org to hook up with great Toyota 'wheelin' folks! Current - 93 4Runner: 3VZ 33"x10.50" no lift ARB F/R 96 Impala SS: My own personal cop car Previous - 89 2WD Pickup 22R, Fabtech "Ivan Dan" lift, 31x10.50, IASCA World Finals 4th Place Stop with the mods and get on the trail! Pix at www.4wheelingoh.shutterfly.com/action

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