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Sherlock Ohms

Always Inspect the Fuses

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bob from maine
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Platinum
Re: Not Always Open
bob from maine   9/30/2014 2:08:02 PM
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Ah, I remember the tapered european fuses well, You held the fuse in the middle while trying to fit the fuse into the holder. If whatever originally blew the fuse was still faulty, the fusible link would melt, charring a small part of the skin of your thumb or finger. They made fuse pullers but they seemed so unecessary - until you had to go through a five-pack looking for a problem.

Larry M
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Platinum
Re: Not Always Open
Larry M   9/30/2014 11:54:25 AM
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Absolutely! Every now and again I acceded to a request to let someone else drive it. I always cautioned them to let up the clutch slowly at idle, then floor it and then SHIFT IMMEDIATELY. No one ever shifted quickly enough, always over-revved the engine.

a2
User Rank
Gold
Re: Not Always Open
a2   9/30/2014 11:46:26 AM
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@Larry: Eventhough the technology was far too old, the responsiveness in those are amazing isn't it ? 

Larry M
User Rank
Platinum
Re: Not Always Open
Larry M   9/30/2014 11:24:27 AM
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True enough, Bob, but I'm sure Opel did not design the fuses or fuse holders. They used those commonly-used European cylindrical fuses with pointed ends, same as VW, probably made by Bosch or some other German equivalent of Lucas, Delco, or Nippon-Denso. I've seen the same failures you cite in VWs.

I bought the Open new in 1970 and sold it in 1977. The only other electrical problem I ever had was an underhood wiring harness that chafed through. If I recall correctly, the symptom was that the engine ran poorly when under hard acceleration. It took a couple of minutes of underhood inspection to find the problem and another few minutes to apply some tape and reposition the harness.

a.saji
User Rank
Silver
Re: Not Always Open
a.saji   9/30/2014 11:09:54 AM
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@tekochip: Exactly, if you do not have common sense you cannot work under pressure. Its better to use a robot instead of a human if so

bob from maine
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Platinum
Re: Not Always Open
bob from maine   9/30/2014 10:57:33 AM
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A joke about Opel is that the name comes from the middle 4 letters of "hopeless" which is what the engineers decided was the capability of meeting the design and reliability spec's. Having owned a couple in Germany, I encountered more apparently random failures than in any car before or since. I've had fuses fail because the solder melted out of the metal end-caps; had the metal end-caps loosen and create resistive contacts; had fuses crack thus putting the fusable element under tension; had spring loaded fuse holders fail to provide sufficient force to maintain good contact and most often had spring loaded in-line fuse holder get jostled in the harness such that going over a bump would pull the wires hard enough to open the circuit. I always suspect the fuse FIRST.

 

tekochip
User Rank
Platinum
Re: Not Always Open
tekochip   9/20/2014 8:20:26 AM
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Common Sense is a skill that should never be overlooked.  Would you really want to hire the guy that destroyed the whole box?

bobwojo48
User Rank
Silver
Re: Not Always Open
bobwojo48   9/18/2014 9:51:31 PM
I had a co-op assignment at the Ford engineering center in the early 70's in the radio lab.

The technicians there built a "fuse tester" that they liked to give to co-op engineers to test fuses.  They would give student engineers the tester and a box of fuses to see how many they would blow before they figured out the "tester" was just blowing all the fuses.

I'm proud to say I figured it out after just a couple failures.  They told me some students would go through the whole box and report that they were all bad...And they were right.

Bill-Devine
User Rank
Iron
Re: Not Always Open
Bill-Devine   9/18/2014 6:10:58 PM
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Not a procedure just what the inspector thought was the right thing to do.

tekochip
User Rank
Platinum
Re: Not Always Open
tekochip   9/18/2014 6:09:25 PM
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That's a great story Bill-Devine.  Was he following a procedure that somebody wrote?

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