[DeTomaso] expansion tank cap

[SOBill at aol.com]

Lee,
 
Here's how it works:
 
The fill/swirl/expansion tank ....... the rearmost tank    ..... gets a 
pressure cap. On some early cars the neck on that tank, which is  slightly taller 
than the US standard, required a European style  pressure cap. Later cars (like 
my '74 #6338), or cars which had been modified  use a US style neck and a US 
pressure cap.
 
Here's how to tell if you have the right neck/cap  combo:
 
Set the cap into the neck.
 
If you must press the cap down against a definite spring pressure  and hold 
it down as you turn the cap to the locking position, and if the cap  pushes 
upward when in the locking position you have the correct  cap.
 
If you do not need to press the cap down against a definite spring  pressure, 
you have the wrong neck/cap combo.
 
The overflow/recovery tank .... the front most tank .... does not  require a 
pressure cap. A pressure cap can be used and will cause no  problem.
 
BTW, the hose from the fill tank neck should go to the bottom of  the 
recovery tank. The overflow hose from the recovery tank should be routed out  past 
your rear tires. This so if you really do fill the overflow tank and start  
puking out coolant, it will cause the guy behind you to spin out instead of you.  
Clever, no?
 
Have fun.
 
SOBill  Taylor
sobill at aol.com  






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