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My old engines had a return line T'd into the output port on the mechanical fuel pump. Is this really necessary on a carbed application?
My old engines had a return line T'd into the output port on the mechanical fuel pump. Is this really necessary on a carbed application?
No... but I would be curious as to why this was done. Mechanical pumps are generally configured to run as dead-heads.
TomZ
Virginia Beach
MOBILEMERCMAN
02-28-2009, 11:34 PM
Some thing is amiss. Could it have been on the inlet side? Old Cigs had boost pumps on the inlet side with multi tanks. If it was a return on the outlet side there would be little to no pressure. It may have had a boost pump or something.
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