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Previous Thread Next Thread Print Thread Rate Thread ZEXEL pump adjustment / 4HF1 #705430 03/12/06 12:46 AM Joined: Aug 2002 Posts: 37 BC Canada EVguy OP Getting the Wheeling Fever I finaly got the turbo on the 4HF1 in my Dakota pickup. Power gain was good but I would like to bump up the fuel to get a little more. Does anyone know how to adjust fuel on these pumps? The pump number is 101401-7184 Thanks Randy Isuzu 4JB1-TC diesel / Jeep Grand Cherokee conversion http://www.canev.com/Jeep.html Isuzu 4HF1 Diesel / 99 Dakota 4X4 conversion http://www.canev.com/Dakota.html Re: ZEXEL pump adjustment / 4HF1 [Re: EVguy] #705431 03/12/06 09:52 PM Joined: May 2003 Posts: 1,121 Iceland PartyTruck Body Damage is Cool Not sure of the type of fuel pump but usually they have a 6mm bolt with a 12mm locknut sticking out of the back. 99% of pumps they are a ***** to get to. Remember screwing inwards gives more oil. 1987 SWB Pajero 2.5 TDI on 31" rubber waiting for a hip replacement and bigger shoes Re: ZEXEL pump adjustment / 4HF1 [Re: PartyTruck] #705432 03/13/06 05:07 PM Joined: Aug 2002 Posts: 37 BC Canada EVguy OP Getting the Wheeling Fever Thanks, that sounds like the pump that is on the 4JB1TC in my jeep, and did a 1/4 turn ever make a big diferance on it along with bumping the boost up to 14 PSI from 7. This is a MUCH larger 4L engine and big inline pump out of a NKR/NPR truck, no visible adjusting screws. Thanks Randy Isuzu 4JB1-TC diesel / Jeep Grand Cherokee conversion http://www.canev.com/Jeep.html Isuzu 4HF1 Diesel / 99 Dakota 4X4 conversion http://www.canev.com/Dakota.html Re: ZEXEL pump adjustment / 4HF1 [Re: EVguy] #705433 09/08/07 10:17 AM Joined: Sep 2007 Posts: 1 T trooperla Need a Spot I am curious to find out the fuel economy on you Dakota with the 4Hf1 engine. I am interested in converting my Isuzu Trooper with one of these engines. Harry Moderated by  4x4Wire, houlster, jezeric, Jim_Paget, strawmyers  Hop To Mitsubishi Forums ------  Mitsubishi 4x4 and SUV Tech  Mitsubishi Diesels  Mitsubishi ArchiveToyota Forums ------  Early Toyota Trucks  Toyota 4Runner, FJ Cruiser &...  T100 & Tundra Forum  Tacoma Forum  Toyota Tech ArchiveJeep Forums ------  Jeep Talk  Jeep TechIsuzu Forums ------  Isuzu 4x4 & SUV Talk  Isuzu 4x4 & SUV Tech  Isuzu DieselsKia Forums ------  Kia Talk  Kia Sportage & Sorento TechOff Topic Chat ------  4x4 Gallery  Off-Topic Chat  Recreational Access & Land ...  Politics4xForums ------  Outdoor Gear  General 4x4 Discussion  Tools and Fabrication  General Communications  Amateur Radio  GPS and MapsParts Bin ------  Private Party - Garage Sale  Private Party - Items wanted  Vendors, Hot Deals, Group Buys4x4Wire Back Yard ------  Suzuki Forum  AZ Crawler Crew  Cal-Nev Crew  General Ford 4x4 & SUV Forum  General Dodge 4x4 & SUV Forum  General Chevy 4x4 & SUV ForumFeedback & Testing ------  Problems, Questions, Suggestions4x4Wire Staff ------  Forum Moderators  Problem Threads Print Thread Switch to Threaded Mode 5 Excellent 4 Good 3 Average 2 Bad 1 Terrible View Profile Private Message Homepage Follow User Forum Posts View Profile Private Message Homepage Follow User Forum Posts View Profile Private Message Homepage Follow User Forum Posts View Profile Private Message Follow User Forum Posts

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