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Julius Pedrosa Posted on May 28, 2017

Posible cause of oil pump not pumping.isuzu 4hf1?

5 Related Answers

Kenneth Clements

  • 110 Answers
  • Posted on Nov 19, 2008

SOURCE: replacing oil pump on 92 4x4 isuzu trooper

undo engine mounts jack engine up as far as it will go

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darjr

Darial Jr Lasaria

  • 379 Answers
  • Posted on Jun 30, 2009

SOURCE: my 1992 isuzu trooper is leaking oil

clean your engine and look very carefully where the oil leak really come from, the cause why this leak happen, the engine was shutdown while the engine temperature is hot. usually the leak will come from the turbo. the engine must be idle for 3-5min before shutting off.

Anonymous

  • 3533 Answers
  • Posted on Aug 28, 2009

SOURCE: How do I get the oil pan off to replace the oil

try these websites www.autozone.com and www.alldatadiy.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your SUV or stop by your local dealer in the parts department.and have them to print you out some diagrams.

honeymokey

honeymokey

  • 3113 Answers
  • Posted on Jun 11, 2010

SOURCE: 1997 Rodeo: need to replace my oil pump on 1997 Isuzu Rodeo....

v6 No they dont go bad. Clean the oil pickup screen.

Anonymous

  • 6982 Answers
  • Posted on Mar 30, 2011

SOURCE: my isuzu dmax oil pan

In order for that dent to have any real effect upon oil delivery, the dent would need to be perfectly flat up against the oil pump pickup. Chances are it isn't. The pickup in most pans is located a bit above the pan bottom to lessen the chance of ingesting any contaminants (sand, grit, hard carbon etc). With the clearance diminished, chances of that are greater.
While only oil pressure is measured, volume is also important. With the pan that close to the pickup, pressure probably won't be a problem but you may loose some volume (impossible to tell how much).
When I put together a fresh engine, I like to see pressure of about 40psi or better. As an engine wears, engineers claim that anything above 15psi is OK...I use a higher number of 25psi (at idle) as a minimum "safe" limit. Anything below that, you know you have a problem and it's wise to find it early and fix it. (Pumps rarely fail...most low pressure problems can be traced to engine bearing wear, resulting in bleed off past the bearings)
As for your pan: If the pan is bent, and you have it off the engine, why not hammer the bend out a little? or, better yet, get another pan from a scrapyard and replace it entirely?
If you have not removed it, there's no real way of measuring and what you are seeing may not be the whole story...pickup clearance may be greater elsewhere. In that case, just continue doing regular service and save pan replacement for a day when you have time to do it.

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0helpful
1answer

Hi good morning. Im having trouble with my shut off motor of my isuzu injection pump, could i install solenoid inline with the supply tube?

you could but it would be not efficient as fixing the unit on the pump
If there is a problem in that area , talk with a specialist diesel pump repair shop as they will have a replacement or fix idea for your problem
indications are that motorized unit is the fuel supply pump and being an inline pump , the shut off is normally a solenoid that acts on the fuel rack moving it to a no fuel position
0helpful
2answers

What is the fuel pump injection timing degree for isuzu 4hf1?

no car stated?
no country.?
no year.?
(i guess you dont KNOW the books are indexed by above)

strike 3, out.

i scan the world and see

Applications include the 2003 Isuzu NPR400
  • The 4HF1 is an OHC direct injection engine of 4.33 L capacity. Peak torque is 285 Nm at 1,800 rpm, peak power is 116 PS (85 kW) at 3,200 rpm. Bore is 112 mm, stroke is 110 mm"


dis beast?
26335802-lfvi2b44iwkqit5d2rqve4gf-5-0.jpg
0helpful
1answer

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
0helpful
1answer

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....
3helpful
1answer

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.
0helpful
2answers

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! ?!
0helpful
2answers

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.
1helpful
1answer

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?
7helpful
2answers

Workshop manual for isuzu 4hf1 turbo charge engine, ECU

I need isuzu 4hf1 engine workshop manual.If any one got it please send it.
[email protected]
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