[wytraveler]

my 1688 is having power issues and running sluggish and stuttering when the seperator is started and any grain is introduced. we've replaced all 3 fuel filters and still having the issue. it slows down to about 740 rpm or completely quits.

any help is greatly appreciated.

 

[scandinavian]

Have a look at the post "1660 on the weak side"
I had a blocked strainer in the bottom of the fueltank where the suctionline hooks up (1460). That caused lack of power.

 

[scandinavian]

How about your liftpump? Do you got plenty fuelflow at the injectorpump or just dripping?

 

[cornstalks]

fuel pressure checks are the first step 15-17psi after electric pump, 22-25 after lift pump if those ok the injection pump would probably need to be pulled