[T2] Bus running too hot.

[Mike Benthin]

I agree- adding bigger bores might also require you to burn higher 
octane gas or you might be getting preignition if the compression ratio 
was not checked.  The 009 would give a rather retarded total advance 
(about 30 vs the 44 for a dual advance? so it might prevent it running 
hot.  When I added big bores to a 71 engine without knowing about 
compression ratios or increased jetting I burnt the valves in 1200 miles 
using regular gas.
Since the 76 is fuel injected, it adds gas on the basis of the air 
drawing in and deflecting the vane in the air flow meter.  Hence AIR 
FLOW CONTRL Bosch FI.Presumably the extra draw would make it want to add 
more gas, but that is adjustable by changing the spring tension of the 
resistor arm.  Make sure you check all air hoses for leakage- what is 
your measured vacuum in the airbox?

MUTS Oboe/EH support = Michael's Ultimate Thumb Saver
93 Chevy Roadtrek 210P
78 VW Westfalia Camper

On 7/13/2014 12:58 AM, David Schwarze wrote:
  You have more displacement than stock which means you are burning more 
fuel.