New Moto Guzzi Door Mats Available Now
So,in another thread "Frulk" made a post in gest about a Chevy Vega as the last few comments were discussing car oil usage.I know that the Vega has a bad reputation for burning oil as this was GM's first volume engine that used an aluminum block with plated cylinders. The engine was a copy of the "Iron Duke" that actually was a good, reliable power plant. For the Vega the Iron block was swapped for the alloy unit with poor plating, and thus the beginning of the Vega's demise.If you are old enough to recall the 70's you may remember that the big 3 US manufactures lobbied the government to place tariffs on import cars to allow them time to develop their offerings to the market as they were only producing large vehicles like the Newport Imperial, LTD and Caprice. The result was GM's Vega, Ford's Pinto, and Chrysler's complete lack of effort and importing re-branded Mitsubishi's. (Omni and Horizon)Of the two real attempts, i have to say the Vega was spot on with the exception of the alloy block that they refused to replace with the proven Iron unit. The Vega dimensions weight and general performance was inline with the imports. the utilization of space was well done.Ford's Pinto on the other hand was a piss poor solution, It was nothing more than a big car cut down in length and width making the internal space cramped, and the car too heavy for a little 4 cylinder to move around reasonably.It is unfortunate the GM stuck to the bad Block in the Vega, and it is unfortunate that Ford fitted 2 foot thick doors to a small car, but worst yet is Chrysler as they didn't even try..not that any of this matters today, just though i would share...
I thought the Vega was an OHC engine, not like the pushrod Iron Duke. Chevy should've used steel wall cylinder liners although Mercedes was able to make the silicone liners work.
The "Iron Duke" wasn't built until '77 and was an overhead-valve design and not overhead-cam like the Vega engine. IIRC, the Vega cylinders weren't plated, the block was cast in a high-silicon alloy. It would have been better if they'd done iron liners (the Cosworth had them), or better yet - made the block in cast-iron and the head in aluminum.https://en.wikipedia.org/wiki/Chevrolet_Vegahttps://en.wikipedia.org/wiki/Iron_Duke_engine
... Chevy should've used steel wall cylinder liners although Mercedes was able to make the silicone liners work.