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1924 Sport-Oilcircuit
Quite a regular
Joined:
2016/10/28 4:26
From Hemmingen, Germany
Posts: 37
There is something what I dont understand. IŽll try to make me understanding with my lousy english. There are some holes into the rocker levershaft on the place where the rockerarm bushings are working. Usualy the levershaft is connectet with the engine oilcircuit. But I cant find any connection to the circuit. There are holes on each place of the rockerarms and one hole opposite to all other ones into the shaft at his end. But there is no hole into the engine block which connect the shafts to the circuit. How the rockerarms be supplied with oil.??
If the rockers are supplied by oilspray from the crank ... why are the holes into the shafts ?

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Posted on: 8/27 14:14:41
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Re: 1924 Sport-Oilcircuit
Home away from home
Joined:
2008/2/24 23:05
From Australia - Sydney
Posts: 406
I have attached a description of the oil circulation circuit for my 126 from the handbook. I would think your 136 will be the same.
There is no pressure fed oil supply to the cam follower rocker shaft however it states " Holes drilled in the crankcase allow oil mist to rise into the valve compartment and lubricate the valve mechanism"

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Posted on: 8/29 0:37:50
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Re: 1924 Sport-Oilcircuit
Forum Ambassador
Joined:
2007/3/14 16:01
From New Jersey
Posts: 15597
Anyone know offhand when Packard upgraded to pressure fed oiling to the shafts and rollers? I believe the rollers and pins only became pressure-oiled when they changed to forged rather than stamped levers but I believe the shafts were already pressure-oiled at that point.

Posted on: 8/29 6:23:15
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Re: 1924 Sport-Oilcircuit
Home away from home
Joined:
2008/2/24 23:05
From Australia - Sydney
Posts: 406
I don't know the answer but my 1922 126 has forged levers and is non pressure lubricated. I also have a 1930 740 and it has stamped levers also non pressure lubricated. I can't recall what is in the 633, too long ago. Different sources for the parts? Who knows?

Posted on: 8/29 15:05:52
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Re: 1924 Sport-Oilcircuit
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Joined:
2007/3/14 16:01
From New Jersey
Posts: 15597
David, as I'm sure you know, Packard actively provided technical information on replacing the early stamped levers with the later forged ones and I suspect the forged levers in your 1st Series are the result of that. Can you see a small plug at the roller end where the oil passage to the roller terminated?

Posted on: 8/29 15:57:56
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Re: 1924 Sport-Oilcircuit
Home away from home
Joined:
2008/2/24 23:05
From Australia - Sydney
Posts: 406
I can't recall that detail from the car but I have a some spare rockers, all forged. There is no small plug at the roller end of the rocker, see photos of spares.
Mine could have had the rockers upgraded but I doubt it. It had been abandoned and crashed in outback Australia with a gas producer filter still fitted. It was found in the early 1970's but its condition when found and the fact that it had been using gas when crashed suggests it had been there a very long time and was only used for maybe 20 years. Its hard to imagine upgraded rockers in such a remote location unless it was a city car on a very long tour when crashed.

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Posted on: 8/29 16:32:18
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Re: 1924 Sport-Oilcircuit
Forum Ambassador
Joined:
2007/3/14 16:01
From New Jersey
Posts: 15597
Interesting, and it's logical to assume under those circumstances that they were not changed. Thanks!

Posted on: 8/29 16:43:15
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Re: 1924 Sport-Oilcircuit
Quite a regular
Joined:
2016/10/28 4:26
From Hemmingen, Germany
Posts: 37
David, .. Dave ... thanks a lot for your informations. Now IŽm calm that there is no mistake in that parts. David your spare rockers looks much better than my one. But meanwhile they are
wire arc spraying with molybdenum and they looks great. Only grinding and polish and the surface is much stronger than the old forged ones.
IŽll post the pics if they are ready to install.

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Posted on: 8/30 3:51:03
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Re: 1924 Sport-Oilcircuit
Home away from home
Joined:
2007/11/18 9:02
From Dalton, NY
Posts: 2150
Hi

Sad how such a rare car could come to rack and ruin. Is that device mounted on the cowl the gas generator? How did those work?

Steve

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Posted on: 8/30 7:01:22
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Re: 1924 Sport-Oilcircuit
Forum Ambassador
Joined:
2007/5/20 1:34
From Bowral, Southern Highlands of NSW, Australia
Posts: 10148
From that to this(see 5th post in the link).

Posted on: 8/30 12:31:02
_________________
Mal
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