<VV> Junkyard dog questions

[kevin nash]

The head casting numbers are 3817287, on both. The block numbers: 3786752 (this is the dipstick side block halve and has no reliefs in it), and has 
a "U" stamped on one of the crank main bearing saddles. The 2,4,6 block half, which does have the reliefs in it, has the numbers TO522YR stamped
on it, and 3786091 cast on the side, and has a "M" or "W" stamped on the the main bearing saddle opposite the one with the "U". Also, the bell housing
was an early bell housing.
Kevin Nash
 


From: LonzoVair at aol.com
Date: Sun, 21 Nov 2010 13:09:02 -0500
Subject: Re: <VV> Junkyard dog questions
To: wrokit at hotmail.com



Kevin,
What is the rest of the date code on the block? And the head casting numbers? The block halves scenario is probably due to a "running change" in production... just my 2 cents.
Later,
Lonzo
 

In a message dated 11/21/2010 12:57:50 P.M. Eastern Standard Time, wrokit at hotmail.com writes:

I forgot to add, the engine had been run before it was removed- there was a whole bunch of carbon build up on the pistons,
and one of the cylinders had enough carbon to possibly prevent it from turning over. I figure that this engine had been driven
around like a grandma car its entire life and was parked when it got carboned up so bad it wouldn't turn over.
Also, this engine had full flange bearings, instead of the half flange set-up that I would have expected to see
on something like this. Did the factory actually ever mix late and early block halves?

Kevin Nash

> Date: Sun, 21 Nov 2010 09:20:32 -0800
> From: kovacsmj at sbcglobal.net
> Subject: Re: <VV> Junkyard dog questions
> To: wrokit at hotmail.com; virtualvairs at corvair.org
> 
> We'll assume the engine was running when removed. I'd use it. The mismatched 
> crank halves should not matter. Sounds like it was a factory set. Possibly a 
> late 1963 engine?
> 
> MIKE KOVACS
> 
> 
> 
> ----- Original Message ----
> From: kevin nash <wrokit at hotmail.com>
> To: "virtualvairs at corvair.org" <virtualvairs at corvair.org>
> Sent: Sun, November 21, 2010 11:22:40 AM
> Subject: <VV> Junkyard dog questions
> 
> 
> 
> I bought a early spyder engine off of e-bay some time ago, so as to have a 
> back-up junkyard dog engine to install
> in case I needed to do some work on my current engine. I've got the j/d engine 
> all the way apart, and have some
> questions. The main bearings dont have any markings on them to tell if they are 
> std. or oversize-did factory main
> bearings have any markings like that? also, the crankcase is a YR block, but one 
> half has the cast in relief for a late
> crank, the other half does not. Interestingly enough, all of the parting lines 
> at the cam journals appear to line up
> perfectly, as though the block was machined as a set, and the oil pan gasket 
> surface has machining lines that match.
> The crank is a early turbo crank (has the correct number for a early turbo 
> crank). The crank main bearings have NO
> scratches in them, the pistons have NO scratches on the skirts, the oil filter 
> was orange with those kooky little slots
> along the bottom that required some sort of spline like tool to remove it, 
> intead of a strap wrench. The heads are
> early turbo heads, and most (not all) of the rocker arm locknuts are the 
> original style. 
> 
> 
> I'm wanting to use this block, because the lifter bores appear to be in 
> excellent shape (still have most of the machining
> lines on them) and the cam journals "look" really nice, but I'm a little spooked 
> about the block halves being two different
> years. I know that I need to actually measure the relevant clearances first, and 
> havent yet, but want to know if any of you have
> successfully run a corvair engine that had non-matched block halves.
> Thanks!
> Kevin Nash, early turbo, daily driver
                      
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