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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Lifter bleeding off a little quick

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Old Jan 13, 2021 | 08:22 PM
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Lifter bleeding off a little quick

Well I finally got all my replacement lifters in and installed. I have an issue with one and I don’t know weather to worry or not. Here is the situation: I install the lifters. I prime the oil system up to 50 lbs. All of the lifters a rock hard.


it sits for 15 minutes and I have one that’s a little soft. When I prime the system again it’s does the same trying. Gets rock solid and then bleeds off. The one with the issue is the front most one on the driver side (#1 cyl).

same scenario: I put all lifters in and put pushrods and rockers on. Primed the engine up to 50lbs. With rockers torqued to spec. Turned the engine over by hand, oil pump is not being turned at this time. When the engine makes its revolution all the way around to bring cyl number 1 back to TDC from TDC the lifter looses its pressure. And is squishy. Granted this is without the pump turning. Anything sound fishy?
 
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Old Jan 15, 2021 | 11:43 AM
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Squishy is fishy. I have had my heads off for a week and the lifters are still rock solid. I would say replace the squishy fish now while it's easy to get to.
 
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Old Jan 15, 2021 | 09:27 PM
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Squishy and fishy lifters were fixed. Sounded quiet for the first 10 seconds of running. Then I heard the tap tap tap, then I noticed there was no oil in the pressure line going to guage. It READ ZERO! Killed the engine. Discovered that the dist was not engaging with the oil pump. The drive shaft is worn about 1/4 or so round. And in the picture you can see the distributor.

ordered a new oil pump shaft. And pan gaskets. Time to drop the sucka and fix this. I don’t want to have to order new gaskets once again, but honestly the pan needs it anyway.


 
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Old Jan 15, 2021 | 10:11 PM
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Did you get the ARP shaft?
 
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Old Jan 15, 2021 | 10:46 PM
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Yes it had been recommended by multiple people so I went ahead with it. What makes it better over just a generic like melling or sealed power that all the parts stores sell?

a bit pricey but it’s supposed to be good.
 
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