Help with timing belt change

[sumac22]

Newbie here. Have not gotten the 91-92 MKIII Turbo Supra yet, but been actively looking and will hopefully soon. I’ve done the air filter, suspension, exhaust, starter, radiator, radio…etc with other cars, but with the Supra as a project car, I’m hoping to learn 3 things: 1) changing timing belt, 2) changing the clutch, and 3) maybe changing the head gasket and some internal work.

I looked at the online TSRM on how to change the Timing Belt. For the most part, it does not look too difficult (just time consuming), but the aligning and removing of crankshaft pulley and camshaft timing pulley seems a bit difficult. My question to the experts here are:

1) Besides buying new timing belt and water pump, do I need to replace anything else?
2) Besides the typical sockets/wrenches, are there any other tools you recommend having handily?
3) Any other recommendation you may have besides following the TSRM step by step?

I search this site and cannot find anything in detail about Timing belt change. Thanks for any inputs.

 

[antman]

1) tensioner
2) torque wrench
3) no

gl man and welcome to the site.

 

[supra90turbo]

It's quite simple and straightforward. While you're in there, the things I would change would be cam seals, crankshaft seal, and idler/tensioner.

Just bring the matchmark on the crank pulley around so it lines up with 0* on the timing cover, and make sure that the matchmarks on the cam gears are both pointing straight up. From there, it's just disassembly and reassembly.
When/if you do the cam seals, and you remove the cam gears, be absolutely sure that you don't lose the dowel pins that hold the cam gear solid to the camshaft. You'll see what i'm talking about when you get the bolt off of the gear. Just don't lose it.

You don't *need* to do a water pump, as it's not driven by the timing belt. You can, by all means, replace it if you feel necessary, but it can be done without touching the timing belt.

other than following the TSRM step by step, that's about it from me. I hope someone else will chime in and add some more tips/tricks.

last thing from me is: torque the crank pulley to spec! do not undertighten it.

 

[sumac22]

Thanks for all the input. I've got an electrical impact wrench so hopefully that will do the trick loosing it. Will do on the re-torque to spec.

 

[jdub]

Thanks for all the input. I've got an electrical impact wrench so hopefully that will do the trick loosing it. Will do on the re-torque to spec.

You probably will have to remove the radiator for clearance to get the impact on the crank bolt...I had to.
Also, might be a good time to change your crank seal while you got all that off...especially if you got a oil seep going on

 

[KINGPIN33]

Thanks for all the input. I've got an electrical impact wrench so hopefully that will do the trick loosing it. Will do on the re-torque to spec.

just use a socket connected to a breaker bar to bust that the crank pulley loose... Make sure you have a good starter and battery to do this.



My question to some of you guys, is there any good way to torque the crank pulley back to 200ft/LBS??? That is A LOT!

 

[sumac22]

Thanks for all the input. I'll be taking the radiator out for easier access. And besides, I might as flush the coolant at the same time.

One last question is where is a good online site that I can get these parts all of you mentioned? I prefer not to go to the over priced local Toyota parts dept. around here.

 

[supra90turbo]

hmm... discounted toyota parts? I have a feeling you'll find something in "Misc Vendors"

 

[Satan]

...that, or if you're just buying time 'til you get to the headgasket, any auto parts store will have a the usual assortment of OEM replacement belts. the seals should definitely come from Toyota....

UNLESS!

Just get a complete headgasket/rebuild set AND the timing belt.

A Fel-pro (or other head set) set will have all the seals you need and then some... you will also need the injector grommets and other stuff when replacing the headgasket... so just get it all and not have to nickel & dime it later...

My recommendation would be to have an experienced Supra owner around...

Then, replace the headgasket, taking care of all these things along the way. The starter is easiest to get to when the head is off, and the timing belt, cam seals, front seals will also be addressed in that process.

When you change the clutch, it may be a good time to replace the rear seal...

If you were local, I'd try to help ya out... maybe take a week to do it all yourself (taking your time), but I've known ppl to do it over a weekend.

Good luck!

 

[shaeff]

here's a link to a great writeup located in our reference section:

http://www.supramania.com/forums/showthread.php?t=254

-shaeff

 

[lowbudgettarga]

If you were local, I'd try to help ya out... maybe take a week to do it all yourself (taking your time), but I've known ppl to do it over a weekend.

Good luck!

that's definately a weekend job, a weekend of solid hard work, but easily 1 weekend's worth. Before I could drive my supra I had to do the timing belt and head gasket. I'd helped a friend with an engine swap on a supra before, but that was it, had it smokin' tires before sundown and the neighbors yelling at me shortly after. I did have help from afore mentioned friend though.

 

[sumac22]

Is it really necessary to have the crankshaft pulley puller for this job or will carefully hammering it with a rubber mallet suffice?

Thanks fellas with all the inputs.

 

[noredline]

Is it really necessary to have the crankshaft pulley puller for this job or will carefully hammering it with a rubber mallet suffice?

Thanks fellas with all the inputs.

once you have that 19mm bolt off of the crank pulley then 99% of the time the pulley can be pulled off by hand, you could use a mallet just be sure that you hit it very lightly as you turn it as you don't want to be hitting up the parts section with a thread title of "I busted my crank pulley and need a new one", worse case I would say you have to use a 2 jaw puller to get it off.