<VV> Engine identification.

FrankDuVal corvairduval at cox.net
Sun May 12 22:00:09 EDT 2019

Well, you have one small bearing top cover and one larger bearing top 
cover. That you know for sure! The small bearing has an OD of 30 mm, and 
the larger one is either 35 or 36 mm, I forgot.

Now, the 1960 140 cu in, the 61 to 63 145 cu in AND the 1964 164 cubic 
inch engines cam with small fan bearings. Large fan bearings began in 
the 1965 year, NOT when the change to 164 cubic inch happened. So, 1964 
has the small bearing and the magnesium fan (one year only item), and is 
164 cu in.

Of course, I have seen top covers changed, as Smitty points out below, 
so that is why you only know you have small and large bearings!

I agree, buy a Junkyard Primer, it is usually right.

Frank DuVal

Smitty has an iPad?

Handy device, I put shop manuals and the Junkyard Primer on my iPad and 
phone. Very handy when I'm somewhere and get asked a question of what 
fits what.

On 5/12/2019 7:51 PM, Hugo Miller via VirtualVairs wrote:
> Ok, we're getting somewhere; I have one engine (the slower one) with a 
> pulley and a 0.64" (approx) fan shaft; the other (the engine I'm 
> thinking of putting in that car) has a harmonic balancer and a 0.74" 
> (approx) fan shaft. I'll grovel & get some numbers presently, but I'm 
> guessing that points to my having one 145" and one 164" engine? Both 
> cars have alternators.
> On 2019-05-12 15:18, Hubert Smith wrote:
>> Gosh Hugo, you don't want much do you? There are dozens of ways to
>> identify engines but because of the likelihood that parts and pieces (
>> including complete engines ) have been changed over the years, you
>> almost have to verify every detail.  First of all the most obvious and
>> also the most likely to have been changed.
>> The fan bearing shaft.  All Corvairs up to and including 64 had a
>> smaller shaft.  Upper block covers with good bearing from Lates were
>> often stuck on there rather than change the bearing when bad.
>> Harmonic damper rather than rear pulley indicates 164 cu engine.
>> Also easily changed.
>> Delcotron adapter ( the casting that holds the filter ) was changed
>> in 65 for the alternator.  Sometimes a surface clue that it might be a
>> 65/69 engine
>> Getting more in depth, the head casting numbers on the ends of the
>> heads are pretty reliable indicators of the year and cu in size of the
>> engine.
>> Lots of other things to look for inside the engine.  Short answer to
>> all this is buy a junkyard primer from Clarks which offers the ID
>> numbers for tyrannys and diffs.
>> Smitty.
>> Sent from my iPad

More information about the VirtualVairs mailing list