BDTB

So I've got my timing belt, drive belts, and water pump on order. I'll be getting a new thermostat from the dealer. Also, I'm going to convert to an external tranny cooler and a spin on filter, which I would love a couple of good links to some "how to" blogs or vids for these. It seems pretty straight forward, but it never hurts to get outside help. Also, I've spoken to some people who have performed several timing belt changes on these who seem to think that replacing the crank bolt is not necessary. They just put some blue Loctite on and reinstalled it with no issues. So I'm just curious why everyone on here seems to go with replacing it. I suppose when it comes down to it, it's not an expensive part, so it's cheap insurance if nothing else. Also, would you recommend replacing my radiator as well? It's got 12x,xxx miles on it, and by bypassing the built in trans cooler, I'll be avoiding the strawberry milkshake issue.

Mark

survivorman97

iTrader: (1)

what type of vehicle is this on?

BDTB

'02 4runner 4X4

rworegon

No need to replace the radiator since you are putting in a external tranny cooler. Just run a hose from the old tranny inlet and outlet ports on the radiator and clamp it in place to keep the coolant from draining out should the internal rad/tranny cooler barrier break down.

As for the crank bolt, I use a new one...it's less than $10 at the dealer and comes pre-coated with sealer....some re-use it and just apply new sealant as you plan.

Nuthuts96

iTrader: (1)

Probably because:

A) The FSM says it's a non-reusable part
B) The Bolt gets 217 ft/lbs- can you say high stress situation?


I'll second your own assessment of:

ps- i replaced per FSM when i did the job.

kball

I've been gathering my parts for the timing belt etc... change. I got the bolt from 1sttoyotaparts.com for less than $6 Cheap peace of mind...

BDTB

It was funny when I asked my brother's advice. It was like I was asking him to sacrifice his first born. He had a felt pretty strongly that it didn't need to be replaced since it isn't a stretch bolt. I told him the same thing, that it's better to just replace the thing for ~$10 and be done with it, which is what I'll do. I'd replace the idlers too if they weren't so damned expensive. They'll last, so I'll get them the next time around.

kball

200 + lbs of torque it will stretch! That's what torque is for. To stretch the bolt to the exact amount.

BDTB

Not to mention the heat that transfers onto that bolt. I think that kind of torque mixed with extreme hot and pretty damn cold conditions are going to make that thing pretty rigid and cause macroscopic breaks in the bonds of the material. So, rather than going head to head against thermodynamics, which I got a C in, I'll just buy the f$#$%g bolt. Shhh, just don't tell my brother.

Mauzer

I'll be doing my timing belt, etc soon as well. I hadn't planned on replacing the bolt either but I guess your right on the cheap insurance...got a part#?

BDTB

I don't, but I'm sure it's a dealer part. Just snag one when you get your thermostat and coolant, if you can... Otherwise, I'm sure you can search for one, or you can just wait until someone chimes in with a part #.

kball

I searched all over 1sttoyotaparts for that dang bolt and could never find it so when I was ordering parts from them I sent a note along that I wanted the crank pulley bolt and they included it in the order. This is what they sent me.

BOLT, WASHER BASED H [Part# 9010516031] ToyotaPrice:$7.95List Price:$7.95 Your Price:$5.74

BDTB

See?

Mauzer

Nice! thank you sir




<----my 500th post!

stir_fry_boy

The stealer never replaces them. Special Order part.

J2F42C

90105-16031 -for those assembled BEFORE 10/98

90119-16006- for those assembled 10/98 up through 2002 models

FYI.....

Mauzer

Thanks, mines an 02...and that bolt is cheaper ($4.54)

kball

And good to know I got the right one for my truck!

rworegon

You might try www.partgeek.com for the idler pulleys....they carry the NSK and KOYO which are exactly the same brands you will find in the Toyota box. They are about 1/2 of the cost of even what 1stttoyotaparts sells them for.

Mauzer

I got everything I needed (except the crank bolt) from Volkstoy Motorsports for $240 shipped. All I may need to get are the bolt and a better t-stat cause I've heard the Motorad aren't reliable.