grade 8 bolt....failures...all read
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
grade 8 bolt....failures...all read
http://www.hotrodders.com/t64273.html
i seen this on the hotrod site...... it has a listing of bolts that seem to fail.....mostly overseas bolts......
b
i seen this on the hotrod site...... it has a listing of bolts that seem to fail.....mostly overseas bolts......
b
Pro
Joined: Nov 1999
Posts: 520
Likes: 5
From: Front Range
yup, gotta love the hotrodders forum.
always a source of pertinent and highly useful information. highly knowledgeable forum members, the majority of which either run their own shops, are deeply entrenched in a technical field, or at the very least aren't afraid to lay their hands on a wrench and get a little greasy.
the blonde weasel
always a source of pertinent and highly useful information. highly knowledgeable forum members, the majority of which either run their own shops, are deeply entrenched in a technical field, or at the very least aren't afraid to lay their hands on a wrench and get a little greasy.
the blonde weasel
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
I am not aware of any foreign bolts in my car except maybe the ARP put in the engine, rods, caps, heads...back in '97....
other than that, they came out of my olde tyme dusty bin I bin savn' for about 40 years.....thems bolts got 'charactor'....
GENE
other than that, they came out of my olde tyme dusty bin I bin savn' for about 40 years.....thems bolts got 'charactor'....
GENE
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Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
Interesting...I would expect Chinese bolts to be crap, but I'm a bit surprised that the Japanese make so many suspect fasteners. They're usually nuts on the quality control. 
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Japanese on Quality Controll?? where in hell you ever get that idea?? some advertisement???.....in history their steel has allways been reprocessed and therefore something differant about it, I THINK it's higher carbon or other impuritity content on account of the resmelting.....these daze we are in sort of the same boat as the Messabi iron range in Minn, west of Duluth is played out, so I hear....and that is the reason American steel is hurting so badly...no ore....
Manchuria has iron ore and coal in China, that is why the Japanese in WW2 went into those areas....no other....
GENE
Manchuria has iron ore and coal in China, that is why the Japanese in WW2 went into those areas....no other....
GENE
Burning Brakes
Joined: Feb 2005
Posts: 894
Likes: 91
Valve Spring Wire
A while back much of the wire used to make valve springs for many of the cam manufacturers came out of Kobe, Japan. We ran into many broken valve springs at that time. We tried to use only the springs that were manufactured with the wire from Rockwell International. This may be all changed now, but this is how it was then.Thanks, Gary in N.Y.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Originally Posted by BerniesVette
I buy Caterpillar grade eight bolts and have never had a failure.
Bernie
Bernie
Bet a airframe/engine mechanic knows lots more than I do about this topic, and will chime in soon enough...
GENE
Pro
Joined: Dec 2003
Posts: 642
Likes: 0
From: Dallas Texas
Just bought some grade 8 yesterday..... they had "JH" on the top... not on the list so I guess I'm in the clear.
Course, they're just going in to hold the steering column in place so I'm not too concerned about them failing....
Course, they're just going in to hold the steering column in place so I'm not too concerned about them failing....