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Old 04-03-2017, 07:43 PM
Drippy Drippy is offline
 
Join Date: Nov 2015
Location: Vermont
Posts: 123
Default Fuel Injector Install torque

Guys,

I have been fighting a few issues in getting my builder rebuilt IO540C4B5 to start. Thank goodness I have a few friends who have been helping, but my most recent efforts discovered (through the bottle test) that 3 of my 6 injectors were not giving a solid stream, and in addition during the last start attempt a helper noticed that I had fuel pooling around the injectors on that top of the cylinders.

So I am addressing this by soaking all 6 injectors sitting in hoppy oil and will blow them out gently tomorrow. - the manual called for unleaded gas but I have heard hoppy gun oil works well.

To address the leaking around the cylinders I wanted to confirm proper installation. I can't find the proper torque value for my injectors in my trusty overhaul manual - any suggestions?
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  #2  
Old 04-06-2017, 05:27 PM
Kellym Kellym is offline
 
Join Date: Aug 2005
Posts: 97
Default

Quote:
Originally Posted by Drippy View Post
Guys,

I have been fighting a few issues in getting my builder rebuilt IO540C4B5 to start. Thank goodness I have a few friends who have been helping, but my most recent efforts discovered (through the bottle test) that 3 of my 6 injectors were not giving a solid stream, and in addition during the last start attempt a helper noticed that I had fuel pooling around the injectors on that top of the cylinders.

So I am addressing this by soaking all 6 injectors sitting in hoppy oil and will blow them out gently tomorrow. - the manual called for unleaded gas but I have heard hoppy gun oil works well.

To address the leaking around the cylinders I wanted to confirm proper installation. I can't find the proper torque value for my injectors in my trusty overhaul manual - any suggestions?
60 in/lb Also there is an orientation of the injector to reduce dripping.
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