[AT] TD6 Trackloader timing problems. Where is TDC

[Spencer - ATIS]

Sorry for the delay in replying, but Denise's laptop is on the fritz and 
she is using mine.

Here is the latest:  I followed Gene's and Jake T's advice and 
found....  My timing was dead on.  This was unfortunate as I had really 
hoped it was something as simple as timing.  I removed the manifold to 
see if it obstructed since the gas portion of the manifold uses smaller 
passages that I didn't check when I had it off the first time.  Also a 
previous owner had drilled a hole in the intake pipe right above the 
manifold, presumably a port for starter fluid, and thought maybe mud 
dauber had obstructed something.  That's when I found I had pinched a 
spark plug wire between the manifold and the gas-to-diesel manifold 
linkage and the the intake manifold was nothing mating perfectly.   So I 
tried again and I get some pops!   So I my problem was a minor fresh air 
leak and using WD40 as starter fluid.  IN short, I was fighting an 
uphill battle on the air-fuel mixture side of the engine equation.  The 
spark side was OK.  Also, my battery is an Autozone Valuecrap and needs 
charging after just a dozen or two starting attempts so I don't get to 
test for long.

The timing can still use some work as I only get some pops and wuffs and 
doesn't spin the engine a rev or two like you would expect with ether.  
More importantly though, the carb is clearly not working, as it will 
only pop on ether.   It doesn't pick up any fuel at all.  When I took 
the carb apart this weekend and cleaned it I realized the carb was 
probably shot.  The fuel adjustment lever was broken off and someone 
clearly munged up the inlet tube(the tube to the draft chamber at the 
top, not the inlet where the gas tank line attaches).  By the way, they 
are a top draft design as fresh air enters the top and then leaves out 
the venturi, also in the top.  They are interesting little carbs, but 
clearly designed to be merely adequate. 

Still needs work, but I think with a good carb I may get this thing started.

Thanks for all the help.   I'll keep you informed....

Spencer