I'm wondering if I am having sufficient fuel delivery problems with my 12HT. I have a Walbro(?) fuel pump somewhere and was thinking of maybe adding this before the fuel pump. Would this help with increasing fuel to the pump? Thanks.
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what size are the fuel pickup/lines on a HJ61 (12HT) and a HJ75 (2H)? are they the same or is the 12HT bigger?
What symptoms are you having?I'm wondering if I am having sufficient fuel delivery problems with my 12HT. I have a Walbro(?) fuel pump somewhere and was thinking of maybe adding this before the fuel pump. Would this help with increasing fuel to the pump? Thanks.
I am having similar issues with my 12ht (fully rebuilt, Gturbo, 30+ injectors, modified injector pump). At 2500rpm it feels like I am getting hit by a headwind - like the engine is missing… it doesn’t happen all of the time.Currently running on front tank. Have not been able to replace the fuel pickup screen, as I was able to on the rear tank. When driving at constant 65mph it feels like I get hit by a 20mph wind for a second every 30seconds or so. When I get back home this weekend I will fill the rear tank and see if it does the same on the rear tank. I know that some who have swapped a 1HD into an 80 have run a electric fuel pump to help with fuel delivery. I do have 30% bigger injectors and the front fuel screw all the way out.
Let me know how it goesI am having similar issues with my 12ht (fully rebuilt, Gturbo, 30+ injectors, modified injector pump). At 2500rpm it feels like I am getting hit by a headwind - like the engine is missing… it doesn’t happen all of the time.
Getting pretty frustrating! Trying a new Bosch primer this weekend to see if it is getting a bit of air in….
Can they be rebuiltHere's an example of what I found on one 2H lift pump.. The engine had a small electric pump fitted when it came to me and it ran terribly when I removed the electric pump. No wonder...
Well, it wasn’t the Bosch primer…. At 2400 rpm it is perfect, and at 2700 rpm it is perfect…. It just doesn’t like 2500 (which is spot on 100km/hr)Let me know how it goes