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Old 10-14-2010, 07:28 PM
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Default Pin drive bolts coming loose

So last weekend I decided it was the perfect day to cruise through Napa. Somewhere along the way the pin bolts on my vintage wheels on the rear decided to come loose. I almost lost a rear wheel if it wasn't for an observant follower. I pulled over and jacked the car up and was able to tighten them up and get it home. I know for a fact I had torqued the pins down to 70 ft-lbs. What other options do I have to prevent the pins from coming loose on my adapter bolts and this happening again??

TIA

Mike
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Old 10-14-2010, 07:48 PM
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Originally Posted by onefastmustang View Post
What other options do I have to prevent the pins from coming loose on my adapter bolts and this happening again??

TIA

Mike
Loctite?

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Old 10-15-2010, 06:11 AM
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Quote:
Originally Posted by onefastmustang View Post
So last weekend I decided it was the perfect day to cruise through Napa. Somewhere along the way the pin bolts on my vintage wheels on the rear decided to come loose. I almost lost a rear wheel if it wasn't for an observant follower. I pulled over and jacked the car up and was able to tighten them up and get it home. I know for a fact I had torqued the pins down to 70 ft-lbs. What other options do I have to prevent the pins from coming loose on my adapter bolts and this happening again??

TIA

Mike

I've never heard of that happening before. There might be something else going on there. You sure the mating surfaces are clean and no obstructions that would prevent the adapter to seat fully on the rotor face? Check that the center of the adapter is clearing the center of the axle or spindle hub as well.

Last edited by TButtrick; 10-15-2010 at 06:14 AM..
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Old 10-15-2010, 06:26 AM
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Per Vintage, 85 lbft with red lock-tite. That's what I did to mine... 70 lbft is inadequate, IMO.
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Old 10-15-2010, 06:54 AM
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http://www.vintagewheelsus.com/tech.php

"Wheel studs used must be of the correct grade as supplied by the hub/axle/spindle manufacturer or from a reputable aftermarket wheel stud supplier.
Drive pin lugs must be installed using high strength thread locker and torqued to the manufacturers specification. The typical torque setting for a ½ inch x 20-wheel stud is 85 ft lb."
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Old 10-15-2010, 02:32 PM
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Alrighty then.. I will take them off this weekend and do them per the spec of 85 and some loctite. Don't want to be losing my wife when she drives it because I have loose nuts..
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Old 10-15-2010, 04:40 PM
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I've not heard that Vintage had a problem, but consider this thread.

Pin drive bolts splitting Help Please
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