[TR] oil pressure

[DLylis at aol.com]

Gary,
I have a friend who had the same problem with a freshly rebuilt 3A  motor.  
All of a sudden in very few miles the oil pressure went to  zero.  I helped him 
out with the second rebuild and this is what I  found.  Go to the Moss 
catalogue Internal Engine.  Part 32 #325-180  had sheared (god knows why) and the 
part 33 #836-510 was permitted to slip up  inside part 31 #836-520, and 
disengage the shaft from the oil pump.  His  first assessment of the situation was 
that the combination of part 31 and 33 was  too short and was made wrong, but 
after closer inspection I found that the pin  was sheared.  The shaft would 
engage enough to build oil pressure but the  slightest amount of play would allow 
the tang to slip out and the pump stopped  rotating.  Going inside the sump to 
see if the pump was engaged did not  reveal this.  It happened when the motor 
was running.  I am not sure,  but it appears that the dizzy was tightened down 
mighty hard with the tang  not engaged in the slot of the pump shaft.
This is a long shot that this would happen twice in the same universe, but  
it is worth a look. 
It may be for a different reason, but make sure your shaft and pump are  
engaged at all times. 
 
David
 
David  Lylis
69 TR6 CC26160L
60 TR3A TS74461LO



**************It's only a deal if it's where you want to go. Find your travel 
deal here.      
(http://information.travel.aol.com/deals?ncid=aoltrv00050000000047)