OldRedMack Posted March 29, 2019 Share Posted March 29, 2019 BMT to the rescue, I need the mack part numbers for pln injectors. One truck is a 94 with a 300, the other truck is a 94 with a 350. I dont want to take the old injectors out until I have the new ones ready to go in. Thank you all in advance. Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/ Share on other sites More sharing options...
JoeH Posted March 29, 2019 Share Posted March 29, 2019 (edited) What does pln stand for? Edited March 29, 2019 by JoeH Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419328 Share on other sites More sharing options...
Mackpro Posted March 29, 2019 Share Posted March 29, 2019 Is it V-mac or non-V-mac? On the 300 is ask for e-7 300, em7-300 and e7-300 v-Mac and all 3 use different part numbers Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419334 Share on other sites More sharing options...
OldRedMack Posted March 29, 2019 Author Share Posted March 29, 2019 (edited) EM7 300 and E7 350 Edited March 29, 2019 by OldRedMack Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419335 Share on other sites More sharing options...
Mackpro Posted March 29, 2019 Share Posted March 29, 2019 A 1994 non VMAC EM7 300 takes 313GC5188P10 injectors. The reman number is same but add a X at the end 1 Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419339 Share on other sites More sharing options...
Mackpro Posted March 29, 2019 Share Posted March 29, 2019 A 1994 350 VMAC takes 313GC5205P1 injectors. A non VMAC 350 takes 313GC5188P12 injectors 1 Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419340 Share on other sites More sharing options...
Mack Technician Posted March 29, 2019 Share Posted March 29, 2019 (edited) 4 hours ago, JoeH said: What does pln stand for? P= pump L= line N=nozzle used to represent all the pre (to mid year) 1998 that had a jerk pump fuel system. E-tech was legally a PLN, but not a Jerk system and so no one ever referred to it as PLN. Edited March 29, 2019 by Mack Technician Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419343 Share on other sites More sharing options...
OldRedMack Posted March 29, 2019 Author Share Posted March 29, 2019 You guys are the best! They are both mechanical engines, guess I should have added that earlier. Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419348 Share on other sites More sharing options...
JoeH Posted March 30, 2019 Share Posted March 30, 2019 (edited) 4 hours ago, Mack Technician said: P= pump L= line N=nozzle used to represent all the pre (to mid year) 1998 that had a jerk pump fuel system. E-tech was legally a PLN, but not a Jerk system and so no one ever referred to it as PLN. So what is a Jerk system? Is the endt676 a PLN system then? Is PLN basically to differentiate between a common rail system and a traditional fuel injection system? Edited March 30, 2019 by JoeH Quote Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419358 Share on other sites More sharing options...
Rob Posted March 30, 2019 Share Posted March 30, 2019 52 minutes ago, JoeH said: So what is a Jerk system? Is the endt676 a PLN system then? Is PLN basically to differentiate between a common rail system and a traditional fuel injection system? Yes. Early mechanical fuel injection systems using an inline type pump were called "Jerk" systems. They were also referred to as "plunger pumps". Rotary pumps such as a "Roosa-Master" were called that, rotary. Common Rail, and HEUI injection is not a PLN system at all. Detroit Diesel used mechanical unit injectors for years to inject the high pressure diesel fuel. I've never seen the designation PLN used in the past in practice, but have seen it in training manuals. 1 Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/56445-pln-injectors/#findComment-419361 Share on other sites More sharing options...
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