Re: 1940 Custom Low Compression
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Home away from home
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If needed are there any accessories, or jigs for grinding the valve stems on a bench, or surface grinder? I have both.
Posted on: 2014/5/28 10:06
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Re: 1940 Custom Low Compression
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Home away from home
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There are a couple used valve grinders for sale here in Vegas, but neither have the stem grinding attachment, and I hate to spend several hundred for a machine that will get used once or twice.
You are right about making sure you are on the heel of the cam. Might the position of the piston be of any help? Any info about the imported lifters? If I am going this far, might just replace all of them. Even though the ones in there now have just 13000 miles on them. I am not sure there are experienced mechanics anywhere around here. Just swap out old, put in already rebuilt new.
Posted on: 2014/5/28 11:05
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Re: 1940 Custom Low Compression
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Forum Ambassador
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Might the position of the piston be of any help?
Each cylinder needs to be TDC on the compression stroke so lifter assy is fully down. Just cranking the engine around to that spot with the socket wrench was the effort part. I can't offer any info on the lifters. Haven't been looking for any and didn't even realize repros for the 356 were available now. For a long time there was nothing available for that engine except finding NOS or good used. With only 13K on yours, would hate to think they need replacing-- although having a nice --even a used set-- might come in handy some day.
Posted on: 2014/5/28 11:36
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Howard
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Re: 1940 Custom Low Compression
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Home away from home
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Probably keep the battery charger on, and starter click it into position. Would imagine there is plenty of space on heel of cam so TDC does not need a gauge on piston top, eyeing ok?
Looks like the head is coming off again.
Posted on: 2014/5/28 12:38
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Re: 1940 Custom Low Compression
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Forum Ambassador
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PNR sells them. Also Ron Carpenter sells them. I used to sell them and had quite a few extras which I gladly loaned out for free. Unfortunately most of the folks I loaned them to never returned them so I no longer loan them out.
Posted on: 2014/5/28 14:41
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Re: 1940 Custom Low Compression
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Just can't stay away
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I believe that your oil filter is plumbed wrong. The inlet to the filter is the outside top fitting and the outlet is the center bottom fitting. Filter elements are made to flow from the outside to the inside.
Packard made a change to the plumbing to address noisy lifters, my 47 and 48 356's have this change and I think I have seen it in a service bulliten. There is a tee fitting on the block that comes from the pump, one leg goes to the filter the other goes to the block input to the lifter galley. Oil to the lifters does not go thru the filter so as to provide adaquit flow and pressure to the lifters. John
Posted on: 2014/5/28 15:24
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Re: 1940 Custom Low Compression
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Home away from home
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Quote:
I have two of the imported lifters in my '50. They have a couple thousand miles on them. So far... so good. Quote:
Packard did use some canisters pre-war that were plumbed with the inlet on the bottom. I agree that it would seem more efficient the other way.
Posted on: 2014/5/28 17:33
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