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3VZE Crank Bolt Replacement - Or Not? #803380 04/07/07 04:52 AM
Joined: Aug 2006
Posts: 95
O
OutlawMike Offline OP
Getting the Wheeling Fever
Ok,

I was cruising all the web and ran into some posts in regards to the crank bolt falling out of various Toyota engines and causing no end of damage to the snout of crankshaft and causing mega bucks worth of repair costs.

I just put my 3VZE back in my '89 Runner and did not buy a new crank bolt. My FSM from '89 does not say that the crank bolt is a non-re-usable item. It specifies 181 ft-lbs for the torque.

On the web I find postings (yotatech.com) that indicate the bolt should be replaced and that the torque on later 3.4's was specified at 217 ft-lbs and that the bolt is non re-usable.

Any opinons on the relevence to the 3VZE? I have not problem tearing back into it and tightening/replacing that bolt.

Re: 3VZE Crank Bolt Replacement - Or Not? [Re: OutlawMike] #803381 04/07/07 05:05 AM
Joined: Dec 2006
Posts: 386
C
cktoy Offline
Mudrunner
I have a 5mge in my supra that the crank pulley fell off after having timing belt done.I am sure it was from lack of tork and reusing old bolt


oh what a feeling:
#1 86 xtra cab 22R,EB 261 cam ,Hooker header,2" ex with cherry bomb, Aussie powered
#2 86 sr5 4x4 efi parts truck
#3 87 2wd parts truck
84 supra yard art
Re: 3VZE Crank Bolt Replacement - Or Not? [Re: OutlawMike] #803382 04/07/07 02:49 PM
Joined: Jan 2001
Posts: 11,595
Adam F Offline
Forum Moderator
I re-used mine on my 3vze and no problems.

But I did see one come loose on a 5vzfe when I worked at Toyota.


88 4R, 350 V8, R150 5 speed Sold <...uot; />
97 4R, stock, daily driver
98 Sienna, kid and dog hauler, wife's ride
Re: 3VZE Crank Bolt Replacement - Or Not? [Re: OutlawMike] #803383 04/07/07 09:52 PM
Joined: Oct 2005
Posts: 392
1
1986xtracab Offline
Mudrunner
for piece of mind you could always use some loc-tite and re torque it.


1986 xtra-cab 22re
stock everything
1991 bed
Re: 3VZE Crank Bolt Replacement - Or Not? [Re: 1986xtracab] #803384 04/08/07 02:03 AM
Joined: Nov 2004
Posts: 92
Smoke Offline
Getting the Wheeling Fever
Locktite and torque, no need to replace!!


94 P/U Ex-Cab 3.0 Automatic 4X4
Re: 3VZE Crank Bolt Replacement - Or Not? [Re: Smoke] #803385 04/08/07 04:12 AM
Joined: Aug 2006
Posts: 95
O
OutlawMike Offline OP
Getting the Wheeling Fever
Thanks gents,

I think I will pull the crank bolt tomorrow, put some thread locker on it, and re-torque just to be sure. After all the cleaning, painting, bead blasting, oh, and the monetary expense of rebuilding this thing, I would hate to trash the crank and then have to tear it all out again.

Most disappointing thing about this dropped valve seat is the fact that I was weeks away from dropping on a GearSlug adapter for my A340H and doing a dual case setup. Now, money was spent on getting the motor back together and running. Probably put me 6 months behind plan, which means, no low gears for this summer. Ah well, maybe by deer season in the fall.


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