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How do I set 4hf1 injector pump? - Cars & Trucks

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Please can you give me the diagram of 4HF1 electrical fuel rotary pump timing?


4HF1.mp4 - YouTube

? 2:31
https://www.youtube.com/watch?v=Mj30ueP-kRI
Mar 14, 2012 - Uploaded by hacpatb20
1:52. Installing a Diesel Injection Pump & Setting the Timing - Duration: 3:28. TiredIronVideos 468,150 views ...

diagram of 4HF1 electrical fuel rotary pump timing Google Search

Apr 19, 2017 | Cars & Trucks

1 Answer

Can anyone provide details of the electronic fuel pump used on the Isuzu ELF 4hf1 engine? Have problems with one that is not supplying fuel to the injectors/engine.


some times the electronic fuel pump has such draw on the fuel lines from the tank or filter ,older fuel lines collapse , if the engine starts and stops that may be yr problem ,a temp fix is to install 1/4 inch springs into the lines until they are replaced with non collapsing hose

Jul 25, 2016 | Isuzu Cars & Trucks

1 Answer

My isuzu 4hf1 engine failed to start?


not starting can be from several reasons
cam/crank position sensors failing--wiring -units ---broken timing belt /chain
immobilizer not working properly--flat battery in key fob-- fuse has been removed and replaced
ignition control module failure
injector problems
low fuel pressure from pump not working
the idea is to run the fault codes to get some idea of the area to start checking and work from there

Jul 10, 2016 | Isuzu Cars & Trucks

1 Answer

How a you o pliz I need timing marks for isuzu 4hf1


no truck name, or model
no year, stated
no country sold. strike 3 huh?
The 4HF1 is an OHC direct injection engine of 4.33 L capacity.

injection pump timing?
good luck, no books here on that engine , in usa.
try posting to a Isuzu truck forum in your country
google just like that....

Dec 13, 2015 | Isuzu Cars & Trucks

1 Answer

A Isuzu NPR 4hf1 rotary pump timing marks set


Hi. If it has a rotary pump, the pump needs to be installed with the crank at 49 deg BTDC on the compression stroke cyl 1. Mark dot gear on pump with white paint. Line up dot gear on pump with line on pump bracket and install. Remove PRM sensor from bell housing and check if line on pump gear is still lined up with line on pump bracket.

Feb 05, 2015 | Isuzu Cars & Trucks

2 Answers

How to remove and install injection pump of the 4HF1 engine model


go to checkers or autozone and either look or buy yourself a CHILTON'S or HAYES manual...costs about $20 but is well worth the investment! ?!

May 08, 2014 | 1995 Isuzu Pickup

2 Answers

My isuzu truck mixes diesel and engine oil. what is the cause?


the injector are along top of engine , the lines all run back to a pump usually attached to engine side, only unit with multiple metal tubes running out to engine top, removal of injectors requires some special tools. this requires good diesel knowledge and tools to repair either one.

Jun 09, 2012 | Isuzu Cars & Trucks

1 Answer

How to aligned timing set mark on isuzu 4hf1 engine?


Bernard , start a new post, ?

what car,?
what year.?
what country.?

google for it , or buy the book on unstated car.

or search here,

http://www.fixya.com/search.aspx?ref=ser&s=isuzu%204hf1&


or

https://duckduckgo.com/?q=isuzu+4hf1+pump+timing+marks&ia=videos


try searching/
much>?
my guess is this is a huge ELF truck?
not a car,
no a light truck?

Nov 05, 2011 | Isuzu Cars & Trucks

3 Answers

Hello,I am overhauling a 4hf1 engine and need torque-timing and other calibration specifications.


Main bearings - stage 1-80 Nm; stage 2-100Nm.Big ends-stage 1-22Nm,stage 2 -45Nm.Flywheel/drive plate-55Nm.Crankshaft puley-120Nm.Cil.head as main bearings.Valve clearance - cold - inlet-0.15 , exhaust - 0.25. Timing 6/800 at sea level.Good luck!

Nov 28, 2009 | 1995 Isuzu Pickup

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