"Insure your bearings for 50,000 miles"

[Tmoose]

Ever tite self adjusting rod (spring loaded) bolts to compensate for out-of-round rod journals. I wonder how many miles were put on the prototype.

 

[evelrod]

It's difficult to read the date. Looks to me like 1924...

I've often said that just about all automotive innovations used in modern cars can be found in one form or another, pre WW II. However...I'm not at all sure this would work on any engine, especially one that had a CR of over 4:1 operated at anything over 1500 rpm !

So many of these 'snake oil' products were about making money or proving some crackpot inventors pet project 'back in the day'. I'm betting my money on this one as being right in there with the rest.

Thanks for posting this...keeps me grounded.

Rod

 

[ivymike]

so their box is probably fodder for the engineering language and grammar forum. Are the bolts insurance, or do they ensure a long life?

 

[franzh]

I enlarged the photo and read some of the text, a bit, it was difficult. These bolts use springs to keep the cap "tight" and a cotter pin holding the spring in. I agree with Rod, but I doubt they would go 1500 rpm. I suspect the cotter pin would shear rather quickly.

This is what I would expect to see in the back of Popular Mechanics.

Franz

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[berkshire]

Wasn’t that in the days when most connecting rod bearings were poured Babbitt bearings?
B.E.

 

[evelrod]

"Poured" bearings were still used in some engines (Chebby) as late as the production year 1953. Bearing "shells" were used as early as 1920 in aircraft engines to my knowledge. Possibly much earlier.

Not much new in the automotive engineering world. Pretty much all of it has been tried once or twice.

Rod

 

[patprimmer]

It was also a day when many engines had splash or drip feed oil systems, so 1500 rpm seems likely.

Regards
Pat
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