Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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Moderator
Curtis Jacobson
Portland Oregon
(4577 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Ever Wonder Why GM Did What They Did? (re: design of the 215)
Posted by: Moderator
Date: November 01, 2008 04:18AM

I think this is a remarkable technical article because it provides a lot of insight into the thinking of the engineers who designed the Buick/Olds/Pontiac/Rover aluminum V8: "The New Buick Aluminum Engine" (including 41 original black-and-white illustrations.)

If you like that article, you'll probably also enjoy this collection of British Leyland Service Training documents on maintenance and repair of the MGB GT V8 and specifically its engine: "MGB GT V8 - TECHNICAL AND SERVICE NOTES" (including 29 original black-and-white illustrations.) This one also includes torque specs, S.U. carburetor maintenance, MG transmission, and Laycock overdrive stuff.


NixVegaGT
Nicolas Wiederhold
Minneapolis, MN
(659 posts)

Registered:
10/16/2007 05:30AM

Main British Car:
'73 Vega GT 4.9L Rover/Buick Stroker

authors avatar
Re: Ever Wonder Why GM Did What They Did? (re: design of the 215)
Posted by: NixVegaGT
Date: November 03, 2008 09:36AM

Wow! That is an amazing article. Thanks for posting it Curtis. Good stuff.


NixVegaGT
Nicolas Wiederhold
Minneapolis, MN
(659 posts)

Registered:
10/16/2007 05:30AM

Main British Car:
'73 Vega GT 4.9L Rover/Buick Stroker

authors avatar
Re: Ever Wonder Why GM Did What They Did? (re: design of the 215)
Posted by: NixVegaGT
Date: November 03, 2008 04:49PM

WHat's up with the horizontal pushrods for the exhaust valves!?? The push rod goes right through the centerline of the bores. Interesting. What does the rocker arms look like? Are they sideways?
The pushrods look like they are inline with the exhaust valves.
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Greg55_99
Greg Williams

(102 posts)

Registered:
11/01/2007 07:12PM

Main British Car:
Re: Ever Wonder Why GM Did What They Did? (re: design of the 215)
Posted by: Greg55_99
Date: November 03, 2008 11:10PM

Doesn't it bother you, however, that it took nearly 50 years to finally come up with an updated block that wouldn't lose sleeves, fret maincaps or crack behind the cylinders. That's those new aftermarket Cosworth blocks I'm talking about. Also after nearly 50 years..... the heads still need help...

Greg


Moderator
Curtis Jacobson
Portland Oregon
(4577 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: Ever Wonder Why GM Did What They Did? (re: design of the 215)
Posted by: Moderator
Date: November 04, 2008 12:17AM

No Greg, because the problems you've identified are more associated with later (Rover) versions of the engine.


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