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timing belt issues - 6G Celicas Forums

Topic #91014 16 posts Started by garin
garin
#1
ok so i have my car almost back together. i have cylinder 1 at tdc and my cam gears on the mark. i get the tensioner in and then turn it over with a wrench to double check my work. it all check out, but when i crank the car with the key my belt is off by a few teeth. the belt seems snug, no slack in it. but the tensioner has been off a few times. should i buy a new tensioner, or do i have other issues? thanks.
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presure2
#2
Sounds like a tensioner issue to me.
Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
garin
#3
i think so too. im gonna order one to be safe. it is running now with about a tooth off.
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Smaay
#4
it might be the timing belt. have you checked it for missing groovs.
2001 Celica GT-S Turbo1997 Supra TT 6speed1997 Celica 3MZ/1MZ swap1990 Celica All-Trac
lagos
#5
I had the same problem when I did mine. The issue was that I was using those little notches on the cams as a guide, like everyone says to do. This is a mistake, because its hard to judge when they are perfectly straight.

You should really go by the teeth on the cam gears.
Use a paint pen to mark where those teeth marks are directly on the gear. Then use the pen to mark where the belt thinks tdc is. After you do this, it will be very clear how far off you are.

I'm pretty sure joe bought a new tensioner when I did his belt. All of the pulleys are new too. You should be able to just reuse everything.

This post has been edited by lagos: Nov 11, 2013 - 10:16 AM
15PSI - 30MPG - Megasquirt Tuned
garin
#6
art my problem is i do the timing everything is snug. turn it over by hand and it is good. then i turn the car on the the belt jumps a few teeth. all my components are new.
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lagos
#7
>
QUOTE (garin @ Nov 11, 2013 - 6:14 PM) *
>art my problem is i do the timing everything is snug. turn it over by hand and it is good. then i turn the car on the the belt jumps a few teeth. all my components are new.


Do you see a lot of slack in the belt as the engine is running?
15PSI - 30MPG - Megasquirt Tuned
Tigawoods
#8
advance the timing by a few teeth and when you crank it, itll jump back to where you want it to be
1995 GT::::Diffusing the Situationエキサイティングカーレーシングチーム!march2010 COTM:6GCfeature2014:january2015-2016-2018 COTM
lagos
#9
>
QUOTE (Tigawoods @ Nov 11, 2013 - 6:53 PM) *
>advance the timing by a few teeth and when you crank it, itll jump back to where you want it to be



laugh.gif
15PSI - 30MPG - Megasquirt Tuned
garin
#10
>
QUOTE (lagos @ Nov 11, 2013 - 6:48 PM) *
>>
QUOTE (garin @ Nov 11, 2013 - 6:14 PM) *
>art my problem is i do the timing everything is snug. turn it over by hand and it is good. then i turn the car on the the belt jumps a few teeth. all my components are new.


Do you see a lot of slack in the belt as the engine is running?


no i do not. im not sure what is going on. i ordered a new tensioner to be on the safe side. i have my teeth marked with a paint pen too. gonna give it another go this weekend. i think it is what you said art, or the intake side has a lot of slack... thanks for the input. btw mike i drove through columbia a few weeks ago... lol
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Tigawoods
#11
>
QUOTE (garin @ Nov 11, 2013 - 7:01 PM) *
>thanks for the input. btw mike i drove through columbia a few weeks ago... lol

1995 GT::::Diffusing the Situationエキサイティングカーレーシングチーム!march2010 COTM:6GCfeature2014:january2015-2016-2018 COTM
garin
#12
>
QUOTE (Tigawoods @ Nov 11, 2013 - 8:04 PM) *
>>
QUOTE (garin @ Nov 11, 2013 - 7:01 PM) *
>thanks for the input. btw mike i drove through columbia a few weeks ago... lol



Lol it was like at 1 in the afternoon on a Monday... Anyways ordered a new tensioner. Gonna give this another go.
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garin
#13
i got it timed correctly. not sure what the deal was.. lol the paint pen trick is a good one!

1. make sure all your gears are lined up to the correct timing mark (use the paint pen to help)
2. make sure the belt is snug in the gear teeth
3. when you pull on the pulley to slide the tensioner in make sure nothing moves and the belt is secure in the gears
4. install the tensioner and hand spin the crank to double check your work
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95st-celica
#14
i didnt have any problems when i put mine on!

HA!

just kidding garin...you'll get it figured out
I"M NOT A TOYOTA FAN, IM A FANATIC1984 accord hatch 5 speed (T-Belt)-Junkyard1991 VDUB jetta wolfsburg Ed. 5 speed (clutch)-junkyard1988 Dodge Aries K (sold)1969 Chevy El camino - Traded for celica1991 Dodge Daytona-Traded for Celica1988 Chevy Camaro-Work in Progress1989 Ford Mustang LX 5.0 - For Sale1995 Toyota Celica-Work in Progress
garin
#15
it is on joe! car stalled out and doesnt want to start now. it cranks very strong. i have the battery charging now. it is a fuel or vacuum problem i think.
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lagos
#16
>
QUOTE (95st-celica @ Nov 16, 2013 - 5:17 PM) *
>i didnt have any problems when i put mine on!

HA!

just kidding garin...you'll get it figured out


That's because I did it for you! laugh.gif

>
QUOTE (garin @ Nov 16, 2013 - 4:39 PM) *
>i got it timed correctly. not sure what the deal was.. lol the paint pen trick is a good one!

1. make sure all your gears are lined up to the correct timing mark (use the paint pen to help)
2. make sure the belt is snug in the gear teeth
3. when you pull on the pulley to slide the tensioner in make sure nothing moves and the belt is secure in the gears
4. install the tensioner and hand spin the crank to double check your work



Glad it helped you out. Its really the only way to do a belt on these engines.
15PSI - 30MPG - Megasquirt Tuned
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