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02-12-2018, 08:50 PM | #21 |
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Re: Why no lock-washers?
My creed is; never reinstall used lock washers anywhere on the inside of the motor, like the oil pump and if possible use new ones everywhere else.
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02-12-2018, 09:03 PM | #22 |
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Re: Why no lock-washers?
A lot of very good and correct answers above. In Henry's favor LOCK WASHERS COST MORE TO MANUFACTURE...
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02-12-2018, 09:12 PM | #23 |
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Re: Why no lock-washers?
The torque value on a fastener its the rated tension that pulls all the stretch out of the fastener,this tension holds the fastener under load without a locking device.this is why head bolts don't have lock washers
Castellated nuts and cotter pins hold a fastener assembly together,they do not hold a torque value.Backing a torqued faster off to catch a castle for pin insertion is a mistake. Modern chemical locking compounds are superior to any mechanical locking device,like a lock washer or a castellated nut/cotter pin. |
02-13-2018, 03:00 AM | #24 | |
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Re: Why no lock-washers?
Quote:
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What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II Last edited by Mike V. Florida; 02-13-2018 at 03:09 AM. |
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02-13-2018, 05:08 AM | #25 |
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Re: Why no lock-washers?
How about the wheels on your car. Have you ever seen any with lock washers?
I do not think so. There are lots of places with out them. |
02-13-2018, 08:20 AM | #26 |
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Re: Why no lock-washers?
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02-13-2018, 09:30 AM | #27 |
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Re: Why no lock-washers?
If you will notice the fiber int/exh manifold gasket has a metal surface on one side. This side is placed against the manifolds to allow for movement during the heating and cooling cycle. The manifolds move much more than a person might realize and if there were lock washers installed I am sure that they would be displaced quickly and then the nuts would really be loose.
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02-13-2018, 09:40 AM | #28 | |
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Re: Why no lock-washers?
Quote:
FWIW, about 25 years ago I worked w/a fellow that was a heavy equipment mechanic that had worked for a CAT dealer for a number of years. He told me that CAT had stopped using lock washers because they had done tests that showed that fasteners stayed done up just as well w/out them as with them.
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02-13-2018, 10:29 AM | #29 |
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Re: Why no lock-washers?
Those big washers on the exhaust - intake manifold attachments are cupped, so they are actually springs to cope with thermal expansion. If you repeatedly tighten those nuts, you defeat the purpose of the cup washers.
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02-13-2018, 11:14 AM | #30 |
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Re: Why no lock-washers?
Picture this: On a wood base, 2 black stick figures, made from welding rod. One was a Female, with a nut for a body, she was being chased by a Male, with a screw for a body. The caption read, "NO, NOT WITHOUT A WASHER"!!----LOL
Bill Twisted
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02-13-2018, 11:16 AM | #31 |
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Re: Why no lock-washers?
The cylinder head and the int/exh manifolds expand at different rates than the block so a ridged mount is not desirable as this needs to be a somewhat flexible joint.
Henry spared no expense on R&D as is observed in the amount of money spent on the 1932 60 HP V8 engine. Almost half a billion dollars. The amount of Model A research was phenomenal. You can bet that if Henry did/didn't do it that there was a very good reason for it. His idea was to pay the highest wages, use the best material, and hire the best people. |
02-13-2018, 12:05 PM | #32 |
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Re: Why no lock-washers?
I agree with Bill, the guru of stuff, if you want to install them, go ahead and do it! To add to your confused state, I don't put cotter pins on rods or mains. I was a truck mechanic for many years and never found a nut actually being held on by one. In the case of the Model A engine, I believe the racing fraternity back in the day built and used a variety of heavy rods when the problem was the castellated nuts, they only have a few full threads! I raced Model B engines with B rods, turning 6200 RPM and never had a rod fail. I now use ARP nuts.
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02-14-2018, 10:48 AM | #33 |
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Re: Why no lock-washers?
I remember them signs, they were advertising for some hardware company.
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02-14-2018, 10:57 AM | #34 |
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Re: Why no lock-washers?
Chief left me a HUGE Electric Soldering Iron. It will solder a thick 1/2" flat washer to the bottom of a Coffee Can! Instead of using lockwashers, I could just SOLDER the NUTS to the BOLTS/STUDS!
Bill Hotterthanhell
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