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Old 10-18-2011, 11:47 AM   #1
slow-cus
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Tricks to hold the crank pulley?

I have searched for this, and most info is for taking the bolt out. I did a timing belt replacement on my 2003 ZX3 a week ago, and I have continued to be nervous whether or not the crank bolt is at a sufficient torque.

When I reassembled everything, I tighten the bolt w/ just a ratchet until the assembly started spinning, then zipped it for a quick second with an electric impact, to hope for a bit more snuggness. And I do mean a quick second - I was paranoid about damaging any seals/bearings around the crank.

I couldn't hold the bolt/pully still to check it w/ my torque wrench ( I think the haynes manual calls for 85 ft-lbs).

Any ideas - now that everything is assembled? I don't want to kick myself in the a$$ if this thing rattles apart during the cold of winter. Thanks in advance for your advice!


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Old 10-18-2011, 12:24 PM   #2
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impact is good, just don't hold it for to long. i don't think its easily possible to damage the seals by over tightening. if you are really concerned you could have an assistant hold the ring gear while you torque the bolt.
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Old 10-18-2011, 01:45 PM   #3
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I secured the pulley with a strap wrench and had a friend hold it in place (big friend) while I torqued it. Never had a problem after that.
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Old 10-18-2011, 02:03 PM   #4
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If its a stick have someone put the car in 3rdthe gear and have them hold the brakes then u can loosen or tighten the crank pulley. If its an auto i have no clue
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Old 10-18-2011, 02:22 PM   #5
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I dont think an electric impact can damage the bolt or the crank. Whats the max torque it puts out? I would just gun it for a few seconds. If it doesnt spin then you're good. A strap wrench is a good idea also.

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Old 10-18-2011, 04:56 PM   #6
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thanks for the responses everyone! ...as for the power impact I used...I believe it was a Milwakee, good for neighborhood of 250 - 350 ft/lbs. I'll give the "put it in gear and hold the brakes" a shot...hopefully my clutch isn't too worn at 110K for that to work.
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Old 10-18-2011, 05:03 PM   #7
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FYI the torque spec is only 85 ft. lbs., so don't go crazy on it. The in gear and standing on brakes method works well.
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Old 11-18-2012, 12:14 AM   #8
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Quote:
Originally Posted by 6SPD_soul View Post
FYI the torque spec is only 85 ft. lbs., so don't go crazy on it. The in gear and standing on brakes method works well.
Can definitely second that, I just finished replacing my timing belt (without timing tools :p hehe) and once everything was put back together, couldn't find a way to tighten the crank bolt to the 85ft-lb spec. I came across this post, went out to the garage and tried it and it worked like a charm! 3rd Gear + Break for the win! .

Thumbs up for start on first crank
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Old 11-18-2012, 04:26 AM   #9
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There's 2 holes in the crank pulley for a pin wrench:




I just made one with 1/4" bolts and iron stock from home depot.
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