Re: At a Loss - Valve Washer Broke
Posted by HH56 On 2020/6/7 16:15:23
Here is the breakdown illustration.https://packardinfo.com/xoops/html/modules/partslist/viewplate.php?cat=20&PlateNumber=28&partslist=1955-1956
You can drop to the bottom of the page and locate the group number to see it is called a valve spring seat. Click on that group number and a page will appear giving the actual part number. You will see there is a different number for intake and exhaust and are only used on 55-6 models.
If Kanter, Max Merritt or maybe Joel at Patrician Industries does not have them new then used are certainly available either from one of them or possibly someone on the forum will have an old head where a couple could be removed.
I can't tell if the whole seat cracked or if only the retainers pulled inside. If it is an intake valve seat and since you have a 55 it may have been an original seat which was found to be weak. Packard issued a bulletin to that effect and announced a harder seat. If the rest are like that you may want to change others and if used are all that is available try to find them from a late or hopefully already changed 56 model.
Packard had a procedure and special tool developed to change the seats without removing the head. The article starts on page 28 of this service counselor.https://www.packardinfo.com/xoops/html/downloads/SC/SC-VOL29NO5.pdf Perhaps you could find or make a similar tool.
Attach file:
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You can drop to the bottom of the page and locate the group number to see it is called a valve spring seat. Click on that group number and a page will appear giving the actual part number. You will see there is a different number for intake and exhaust and are only used on 55-6 models.
If Kanter, Max Merritt or maybe Joel at Patrician Industries does not have them new then used are certainly available either from one of them or possibly someone on the forum will have an old head where a couple could be removed.
I can't tell if the whole seat cracked or if only the retainers pulled inside. If it is an intake valve seat and since you have a 55 it may have been an original seat which was found to be weak. Packard issued a bulletin to that effect and announced a harder seat. If the rest are like that you may want to change others and if used are all that is available try to find them from a late or hopefully already changed 56 model.
Packard had a procedure and special tool developed to change the seats without removing the head. The article starts on page 28 of this service counselor.https://www.packardinfo.com/xoops/html/downloads/SC/SC-VOL29NO5.pdf Perhaps you could find or make a similar tool.
Attach file:
(173.29 KB)
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