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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2010/8/18 5:19
From Viola, ID (but living in Norfolk, VA)
Posts: 870
Well, I cant believe it! Someone found me a set of piston expanders! 320201. I also read my Glenn engine rebuilding manual, and now I understand how knurling, and the piston expanders work. They go in just under the oil ring, to expand the middle part of the piston where the cylinder is more tapered. Knurling works the same way. I have a couple of shops that I can call on Monday to see if they still knurl pistons.

Other than a few more inspections once I find out about the knurling, and some cleaning, I should ready for reassembly. All the parts are shipped!

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Posted on: 8/15 5:34:56
_________________
1937 120 1092 - Original survivor for driving and continued preservation.

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partially restored (Sold Hershey 2015)

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=6550&viewmode=flat&order=ASC&type=&mode=0&start=0


Past Packard storage locations:
Amelia Island, FL
Saratoga Springs, NY
Viola, ID
Groton, CT
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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2010/8/18 5:19
From Viola, ID (but living in Norfolk, VA)
Posts: 870
Looks like I need some tappet screws too. Otherwise cleaning is going well...

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Posted on: 8/15 18:09:30
_________________
1937 120 1092 - Original survivor for driving and continued preservation.

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partially restored (Sold Hershey 2015)

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=6550&viewmode=flat&order=ASC&type=&mode=0&start=0


Past Packard storage locations:
Amelia Island, FL
Saratoga Springs, NY
Viola, ID
Groton, CT
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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2014/7/15 11:30
From Terrebonne, OR
Posts: 2006
Factory valves are flat on top so curious about those you showed. Are there any identification numbers on them?

Posted on: 8/15 20:49:50
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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2010/8/18 5:19
From Viola, ID (but living in Norfolk, VA)
Posts: 870
Holy cow! I thought they were stamped PMC - they are actually stamped DMVC. The exhaust are stamped DMVC EX and the intakes are stamped IN 8 DMVC.

No other numbers.

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Posted on: 8/16 6:03:07
_________________
1937 120 1092 - Original survivor for driving and continued preservation.

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partially restored (Sold Hershey 2015)

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=6550&viewmode=flat&order=ASC&type=&mode=0&start=0


Past Packard storage locations:
Amelia Island, FL
Saratoga Springs, NY
Viola, ID
Groton, CT
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Re: Ken's 1937 120 Touring Sedan
Just can't stay away
Joined:
2008/7/5 0:56
Posts: 76
The one on the left in the foreground appears to
have an "IH" which looks to me like International Harvester.
Of course Ken is correct that is an"N".

Posted on: 8/16 7:07:21
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Re: Ken's 1937 120 Touring Sedan
Just can't stay away
Joined:
2008/7/5 0:56
Posts: 76
Packard Don,
I think the slot is for engaging with a valve lapping tool.

Posted on: 8/16 7:17:58
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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2014/7/15 11:30
From Terrebonne, OR
Posts: 2006
Yes, I know even though Ive never had slotted valves. For my Packard flat valves, I use the lapper with the suction cup.

Ken, are there any markings or numbers under the head?

Posted on: 8/16 8:03:52
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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2010/8/18 5:19
From Viola, ID (but living in Norfolk, VA)
Posts: 870
Don, no markings on the underside of any of the valves.

Posted on: 8/16 18:19:21
_________________
1937 120 1092 - Original survivor for driving and continued preservation.

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partially restored (Sold Hershey 2015)

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=6550&viewmode=flat&order=ASC&type=&mode=0&start=0


Past Packard storage locations:
Amelia Island, FL
Saratoga Springs, NY
Viola, ID
Groton, CT
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Re: Ken's 1937 120 Touring Sedan
Forum Ambassador
Joined:
2007/12/12 21:29
From Dallas, TX
Posts: 1738
question on 324090 tappet adjusting screws...some are machined concave on top some flush, some raised above head. Comments?

Posted on: 8/17 8:07:13
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Re: Ken's 1937 120 Touring Sedan
Home away from home
Joined:
2010/8/18 5:19
From Viola, ID (but living in Norfolk, VA)
Posts: 870
To knurl or not to knurl...

So, I have a set of piston expanders, and they look good. I also found a guy who can knurl the pistons... but ... he doesn't want the block in his shop (because it has a car attached!!! ) and I'm concerned about having him knurl the pistons without the block to compare it to. Thoughts?

I also ordered the piston rings, then noticed in the shop manual where it specifies a different type of piston ring (specifically the top ring) when piston expanders are used. It is an expansion type ring with a groove on the inner diameter of the top of the top ring, to aid in sealing. So, if I can find a set of those rings, I'll probably run the expanders. If I can't, I might risk knurling, knowing some hand work would be required if he takes a piston too far.

Anyone with more experience have any suggestions or good ideas? Not planning on making any decisions until I get back from my valve grinding excursion this weekend.

Posted on: 8/18 5:15:41
_________________
1937 120 1092 - Original survivor for driving and continued preservation.

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partially restored (Sold Hershey 2015)

http://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=6550&viewmode=flat&order=ASC&type=&mode=0&start=0


Past Packard storage locations:
Amelia Island, FL
Saratoga Springs, NY
Viola, ID
Groton, CT
Transfer the post to other applications Transfer



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