Stubborn Wheel Bolts Log Out | Topics | Search
Moderators | Edit Profile

FerrariChat.com » Technical Q&A Archives » Archive - May thru December 2001 » Stubborn Wheel Bolts « Previous Next »

Author Message
Warren E. Smith (Magoo)
Posted on Saturday, August 04, 2001 - 2:49 pm:   

Lens, I hope you used anti-sieze lube on them. Just trying to prevent problems in the future.
Leonardo Soccolich (Lens)
Posted on Saturday, August 04, 2001 - 2:27 pm:   

Well, the Marvel Mystery Oil finally did the trick! Thanks Heath. I applied it over several days, and all twenty bolts came off without a problem. I even was able to use the factory wrench. I torqued them to the proper spec; so I don�t anticipate any more problems. Went for a great ride today. Thanks everyone.
Sam NYCFERRARIS (Sam)
Posted on Wednesday, August 01, 2001 - 9:59 am:   

Lens,

Something may be up there, why would they be so tight? Was the car sitting in water, is there any rust visible.... Just go down the road to Vinny (better call him first) and drop it off with him - he won't charge you much and you can give him a list of other nagging things while the car is there. ( he does a "fix" for slow windows that worked for me)
BretM (Bretm)
Posted on Friday, July 27, 2001 - 7:22 pm:   

I use Never-Seez on all my lug nuts and I don't go nuts on them (I use an impact gun after I start them) because gosh forbid I actually have to change them on the side of the road. Remember to always recheck your tightening after about 50 miles of driving when you tighten thelugs on any alloy rim.
HEATH VAUGHN (Heath)
Posted on Wednesday, July 25, 2001 - 10:33 pm:   

TRY THE MARVEL MYSTERY OIL GIVE IT A DAY OR TWO AND YOU WON'T BELIEVE IT. I'VE USED IT ON ONE MGB AND TWO MGA'S. ENGLISH CARS RUST UP AND SIEZE WITH THE BEST OF THEM.
I HAND TORQUE THE LUGS ON MY MONDIAL AND AFTER YOU CHECK THE PRICE OF NEW ONES I BET YOU WILL TO.
BEST REGARDS,
HEATH
Craig Dewey (Craigfl)
Posted on Wednesday, July 25, 2001 - 12:08 pm:   

who it was that did a study on lug bolts (Road & Track, Consumer Reports or 60 Minutes), but they found that most are overtightened way too much. The mechanics with impact/air wrenches are the ones to watch out for. Some think that if they control the air pressure, the torqe is controlled which is not necessarily true. I always use a torque wrench to tighten mine. There are some cases where overtightening can cause future failure but I wouldn't want to guess at what point the 308/328 bolts would be in trouble.

You may change your mind about new bolts once you check out the cost!
Steve Magnusson (91tr)
Posted on Wednesday, July 25, 2001 - 9:08 am:   

Leonardo -- Are you able to put the penetrant/lubricant on the thread areas or just under the lugbolt heads? Probably quasi-impossible to get to the threads from the backside, but might be worth a look...
Leonardo Soccolich (Lens)
Posted on Wednesday, July 25, 2001 - 7:58 am:   

Peter,

The spec, according to my owner�s manual, is
72 ft./lbs. Every time I have my daily drivers serviced, I plead with the service reps to make sure the technicians use a torque wrench. Its like talking to a wall. What the **** is the problem? I got a flat one night in my Passat and couldn�t change the tire because the bolts were on so damn tight. I was on the Harlem River Drive, which doesn�t allow commercial vehicles, so forget about getting a tow truck. I had to drive home (about ten miles) on the flat. You shpuld have seen the tire!

Back to the bolts. Once I do get them off, I think I may just get new ones. I�m concerned about the old ones being compromised due to overtorqueing.
'75 308 GT4 (Peter)
Posted on Wednesday, July 25, 2001 - 3:12 am:   

I know this subject is about taking bolts off, but I would like to know how much these things have to be torqued on (obviously, whoever owned the car before Leo, got carried away with cinching these things on). I don't remember seeing in any of the manuals what the torque spec is supposed to be.
Warren E. Smith (Magoo)
Posted on Tuesday, July 24, 2001 - 10:44 pm:   

Lens, It's like Craig says. Have someone put their foot on the brake pedal while you try to remove the lug bolts. You are not getting the full amount of torque when you move the car with the breaker bar. You can use a pipe as a persuader but pull cautiously because I don't know what the strength of those bolts are.
Craig Dewey (Craigfl)
Posted on Tuesday, July 24, 2001 - 10:36 am:   

As long as you're trying to loosen it, I wouldn't worry about applying too much torque -- it has to be done or you won't get it off. The car will rock until you take the freeplay out of the brake system. You may want to have someone step on the brake pedal to keep the tire from spinning if you have that problem. I usually put a four foot pipe extension on the breaker bar straight out the rear and step down on it, which seems to work out the best for me.
Leonardo Soccolich (Lens)
Posted on Tuesday, July 24, 2001 - 7:15 am:   

Haven�t had a chance to get some mystery oil yet, but my neighbor and I did try a 1/2" breaker bar last night with a six-point 22mm socket. No luck. Even with the emergency brake on, the car actually rocks back and forth, but the bolts remain stuck. I�m really nervous about applying to much pressure. Is it possible to shear a steel bolt? I may rent an electric impact wrench, or swing by Vinny at Auto Elite and have him try.
Craig Dewey (Craigfl)
Posted on Tuesday, July 24, 2001 - 6:35 am:   

You can find Marvel Mystery oil at most auto supply stores.
Leonardo Soccolich (Lens)
Posted on Monday, July 23, 2001 - 7:54 pm:   

Heath,

Dare I ask? Where can I find Marvel Mistry Oil?
HEATH VAUGHN (Heath)
Posted on Monday, July 23, 2001 - 7:37 pm:   

MARVEL MISTRY OIL. I'VE TRIED THEM ALL APPLY SOME TODAY GO BACK TOMORROW IT WILL COME LOSE.IF NOT APPLY SOME MORE AND WAIT ANOTHER DAY. THIS HAS WORKED ON FIVE E TYPES 2 MGA, 3 MGB TRY IT YOU MIGHT LIKE IT.
HEATH
Warren E. Smith (Magoo)
Posted on Monday, July 23, 2001 - 5:19 pm:   

Lens, On my 308 the bolts are as I stated. I think also on the 328 but I won't swear to it.
Warren E. Smith (Magoo)
Posted on Monday, July 23, 2001 - 5:15 pm:   

Lens' Soak the bolts with Liquid wrench or Kroil and let them set over night. Then as Craig says use a persuader like a 1/2 inch breaker bar. Use a socket that fits the head of the lug bolt exactly, no play. With the wheels on the ground slowly apply pressure. When you install them clean the threads on the bolt with a wire brush on a bench motor. Then use anti-seize lube on all the bolt threads before installing. Anti-seize can be found at all auto stores. And yes the front lug bolts are longer than the rear ones.
Craig Dewey (Craigfl)
Posted on Monday, July 23, 2001 - 11:48 am:   

The best thing I know to do is to put a long extension on (pipe)to get it loose. I would try some "Kroil" to help lubricate it -- it seeps into very tight places (careful you don't put too much or you'll get it on the brake pads).

--OR--

If you could rent an electric impact it might do it but it would need to be pretty heavy duty in order to loosen something that may need several hundred ft-lb of torque.

-OR--

If you could find a Torque multiplier attachment, you may not need so much force on the pipe...

Good Luck!!
Leonardo Soccolich (Lens)
Posted on Monday, July 23, 2001 - 7:14 am:   

Any suggestions for removing overtightened bolts? I�ve used WD-40 and Liquid Wrench with no luck. I�m to the point where I�m ready to drive it over to my mechanic. Also, can someone confirm that 328s use two different size bolts�long in front, short in the rear? I�ve heard different things from different sources. Thanks.

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration