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3406B truck engine

walkerv

Senior Member
Joined
Jan 21, 2016
Messages
1,125
Location
wingate nc
The injector lines connect to some sort of union that passes thru the head then the fuel lines to the injectors connect to them . Sis shows orings on them unions . Friends truck has some that are moving in the head is the o rings the only thing that holds hem in place , sorry i dont have serial number or ar the tags are all gone . Waiting to see if peterbilt can get me the original engine info its a 1989 pete if i remember correctly .
 

Truck Shop

Senior Member
Joined
Dec 7, 2015
Messages
16,898
Location
WWW.
Those fuel line cross overs that pass through the head were up dated in the 90's to a solid piece with a o-ring. The formed metal retainers were always a problem.

Truck Shop
 
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