CorvAircraft> Hydraulic lifters....

[jbfjr]

Would it have been possible to check the valve train lubrication 
by removing the valve covers and then running the oil pump 
manually with the drill motor?  I sure hope there was no damage to 
your engine.

John Franklin
Richmond, TX
GN-1 Aircamper


---------- Original Message ----------------------------------
From: "Clare Snyder" <claresnyder at rogers.com>
Reply-To: Corvair engines for homebuilt aircraft 
<corvaircraft at mylist.net>
Date: Thu, 22 Jun 2006 21:24:05 -0400

>And I would not do it any other way, myself, either. A dry lifter 
is NOT my 
>idea of a good start for a fresh engine.
>----- Original Message ----- 
>From: "John Brannen" <j.brannen at yahoo.com>
>To: "Corvair engines for homebuilt aircraft" 
<corvaircraft at mylist.net>
>Sent: Thursday, June 22, 2006 5:49 PM
>Subject: Re: CorvAircraft> Hydraulic lifters....
>
>
>>> VideoFlyer at aol.com wrote:
>>
>>> ...I could tell that the lifters were chattering
>>> badly.  I ran the engine for about a minute, waiting
>> for them to pump up with
>>> oil..and they never did.  So I shut it off.  I had a
>> friend (mechanic) come over
>>> and had him listen to it.  He agreed...the lifters
>> were making a LOT of noise.
>>>  He suggested pulling the valve covers off to have a
>> look.  As I was taking
>>> the covers off, I asked him if there would be oil
>> dripping out when they came
>>> off.  He said, "probably a little."  When the covers
>> came off, everything
>>> inside was bone dry.  No oil had made it to the top
>> of the heads.  The engine had
>>> run about 4-5 minutes by now.
>>
>> The oil to the heads comes through the lifters, so if
>> they aren't pumped up, you won't get oil to the heads.
>>
>> I know there will be disagreement, but I always prime
>> hydraulic lifters by submerging them in a can of clean
>> oil and then pressing the plunger with a pushrod
>> several times.  I've never had a problem doing it this
>> way.
>>
>> John Brannen
>>
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>
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