<VV> Head Troubles...

[Harry Yarnell]

Been awhile since I've done this, but I think that at LEAST the jugs have to 
come off; maybe the pistons. Probably easier to pull the jugs AND the 
pistons as a complete assy since you've got the turkey roaster off, and 
access to the top cover is easy (for piston removal).
Helicoil or Time Sert inserts would be my choice for thread repair.
I have the pleasure of replacing all 20 headbolt block threads on a 
Northstar in the coming weeks. Another aluminum wonder.

harry yarnell
perryman garage and orphanage
hyarnell1 at earthlink.net
----- Original Message ----- 
From: <Grant43 at comcast.net>
To: "Harry Yarnell" <hyarnell1 at earthlink.net>
Sent: Sunday, June 24, 2007 12:28 AM
Subject: Re: <VV> Head Troubles...


> Harry:
>     Thanks for the info.  Turns out you were right.  Three studs are 
> coming loose, pulling through the case.  They are all on the top row on 
> one side.  What I am wondering now is, is it possible to repair the 
> threads just by pulling the head, or will I have to pull the motor and 
> tear it all down.  I have the head off now and if I take the fan off the 
> top of the motor (which is still in the car) I can get pretty good access 
> to where the studs go in the case.  But it looks like I may have to pull 
> off the barrels, and if that's true, I assume I'll have to pretty much 
> tear it all down at that point.  Does that sound correct?  Any advice on 
> the best way to repair this?  I really love the car, but this motor has 
> been a real challenge.  Thanks.
>
> Grant
>
> -------------- Original message ----------------------
> From: "Harry  Yarnell" <hyarnell1 at earthlink.net>
>> IF they were properly torqued, they shouldn't have loosened. However the
>> studs may be pulling out of the block.
>>
>> harry yarnell
>> perryman garage and orphanage
>> hyarnell1 at earthlink.net
>> ----- Original Message ----- 
>> From: "Grant Richardson" <Grant43 at comcast.net>
>> To: <virtualvairs at corvair.org>
>> Sent: Saturday, June 23, 2007 1:37 AM
>> Subject: <VV> Head Troubles...
>>
>>
>> Hello:
>>      Having head troubles on a 64 convertible with a stock motor.  When I
>> got the car, it ran fine until it blew a head gasket.  Turns out a 
>> previous
>> owner had put on later model heads without putting in the necessary 
>> bushings
>> to center the larger head over the barrels.  The head was trashed, so I 
>> got
>> the proper 64 heads out of a junkyard, had them rebuilt and then slapped 
>> it
>> all back together.  Ran fine until it threw a fanbelt and overheated. 
>> Then
>> it began to make noises and it turned out the heads were both extremely
>> loose.  They were poperly torqued.  Is this a common problem with these
>> motors?  Thanks.
>>
>> Grant Richardson
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>
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