<VV> Another Mystery!

[Mike McCrae]

Check the cylinder head #'s....a 140 head can't use smog pistons....

Mike McCrae

-----Original Message----- 
From: Brian via VirtualVairs
Sent: Friday, October 09, 2015 2:07 PM
To: VirtualVairs at corvair.org ; fastvair at yahoogroups.com
Subject:  Another Mystery!

I'm trying to help a new club member determine exactly what is the engine in 
his car. It is a 1969 convertible. The engine case has the following numbers 
T0703 RY and 19W701028. The data plate on the rear frame rail contains the 
following information: ST 69 10567   WRN 134282. Theon the data plate 
contains the letters TR701 and the numbers 52 under the WRN. The third line 
contains the numbers 090  and the capital letter A.
The engine is 140 hp but does not have a smog pump. The sheet-metal appears 
to be from a smog motor. A check of the list of engine case numbers shows 
that an RY block is for a 1968 140 hp smog engine. The list shows every 1969 
engine to begin with the letter A. to add to the confusion is that General 
Motors installed sticker in the front center of the engine compartment 
stating that the engine is equipped with pollution control equipment and the 
timing should be set at 12° BTDC.  The 1969 shop manual supplement shows the 
timing requirement of 6°. I'm confused and any help would be appreciated. I 
I should also mention that the air filter housing has what appears to be a 
stock piece of tubing that connects to the crankcase ventilation hose. I've 
never seen anything like that before. When the new owner took possession of 
the car he said it was very hard to start. A quick check with my dial back 
timing light show the initial timing to be set at 24°. Setting it at 12° has 
made the starting much easier.

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