Injection pump

[BlackSmoker]

I am wondering if my injection pump is packing it in. It was cool this morning and my HZ was smoking a lot. The glow plugs are good but it was running really rough. Is there a preheater before the injection pump? It runs great when it is warm. Anyone have this problem?

[roscoFJ73]

Originally Posted by BlackSmoker

I am wondering if my injection pump is packing it in. It was cool this morning and my HZ was smoking a lot. The glow plugs are good but it was running really rough. Is there a preheater before the injection pump? It runs great when it is warm. Anyone have this problem?

Why does everyone blame the pump as a 1st resort? Worn out pumps usually lose power as they warm up and work fine cold.
If the pump had something else wrong inside ,it would be running bad non stop.

Have the injectors been done? What colour smoke was it?
Running rough at start up is nearly always bad glow plugs,air entering the system overnight or low compression

No pre heater. Wouldnt need one unless the fuel is gelling

[BlackSmoker]

Dude sorry for asking? FU

[canucksafari]

Originally Posted by BlackSmoker

Dude sorry for asking? FU

Bad attitude . You just got some good advise for something you could have used "search" for and you give Rosco the salute. Oh, I forgot something.

[too tall]

Originally Posted by canucksafari

Bad attitude . You just got some good advise for something you could have used "search" for and you give Rosco the salute. Oh, I forgot something.

I was under the impression this was a website used by many for helpful advice . Using the search function is sometimes not as helpful or easily understood as we might believe . I hope that the trend of responding with rudeness to a legit question doesn't catch on . Just the way I perceived it .

[canucksafari]

Yes, perception is everything. It looked to me like Rosco gave good specific advise - even though he might of shown that the question was a bit annoying. He didn't exactly do a :m ad:.


I did a search using the key words "cold" and "smoke" in this section and pulled up 5 pages of hits. Search isn't hard - maybe the reading is hard if you don't have patience? I find that by sorting through all the search hits, I learn a lot of stuff along the way. Not exactly a waste of time.

IMHO, Rosco did not deserve a "Dude sorry for asking? FU ", especially by a Rockie.

[lshobie]

It is blowing smoke because it is cold, try glowing the key twice then start -- will probably work better.

[roscoFJ73]

FU too crybaby

If you want some more precise answers ,why dont you add some more precise info like how many klms its done,last diesel service (if ever )and importantly ,the colour of the smoke which is where all diesel diagnosis starts.

And sorry,diesels aren't for crybabies

[BlackSmoker]

Why am I a crybaby I just asked a question and I am dumped on for that! I believe my problem is in my glow plug relay not staying on long enough. I don't think it was a stupid question.

[BlackSmoker]

Also I ment F'd Up NOT WHAT YOU THOUGHT!

[Technikev]

Why can't we all just get along...

BlackSmoker: More info would be helpful. Likely so would the search, even if it is sometimes not that intuitive. Check your preheat system (maybe cycle this twice like isobie says), injectors and look for air intrusion (this could be worse if it is cold). If you have a 416, you should already know diesels can sometimes belch a lot of smoke on a cold start.

Rosco: HZ's have a heating screen, don't they? Preheaters are usually a necessity up here in the Great White North. Sometimes diesels won't start if it gets below -15 to -20 C with out a heater or being plugged in. Fuel won't gel at those temps. The Kootenays have probably had a couple below freezing nights already this year.

-kevin

[BlackSmoker]

OK the injection pump has 130000KM on it pretty new I think concidering my 6.9 in my Ford gave up at 300000 and 600000KM. It has rebuilt injectors and glow plugs this year. It was cold in the morning and is white smoke the light in the dash stays on for only 3 seconds. Once warmed up it runs perfectly fine. I think the glow plugs aren't staying on long enough or the pressure in the pump isn't high enough. I would like to wire a switch in to go manual on the glow plug like I have for my other diesel vehicles. I have 24V glow and would like to keep it 24V. I think the pump pressure is to low because it doesn't have a lot of power and drops off at 3000 RPM. It runs low smoke when warmed up and only runs black when you give it full throttle. I adjusted the timing with the dial indicator to the specs in the Toyota manual. How do you increase the pump pressure? I have had this lack of power for a long time. I though it being an inline 6 it would have tons of torque but it doesn't looked at putting a turbo in or a 5.9 Cummins. The engine just seems guttless it will barely do 100 kmh. it consumes no oil and idles better than any diesel I have owned. Is this right?

[roscoFJ73]

Originally Posted by Technikev

Why can't we all just get along...

Rosco: HZ's have a heating screen, don't they? Preheaters are usually a necessity up here in the Great White North. Sometimes diesels won't start if it gets below -15 to -20 C with out a heater or being plugged in. Fuel won't gel at those temps. The Kootenays have probably had a couple below freezing nights already this year.

-kevin

1HZ have glow plugs. The 13BT and 12HT have glowscreens

For me a cold day is about 65c and about the limits of endurance for humans I would catch a cold just watching their weather forecast

If the ambient temp is so low that can make them run rough although I cant recall too many canucks complaining about the 1HZ and HD T running rough when cold.

[roscoFJ73]

Originally Posted by BlackSmoker

Also I ment F'd Up NOT WHAT YOU THOUGHT!

Ok then ,abbreviations are confusing.

Why am I a crybaby I just asked a question and I am dumped on for that! I believe my problem is in my glow plug relay not staying on long enough. I don't think it was a stupid question.

I wasnt dumping on you. I merely asked why everyone gravitates to the most expensive piece on the outside of the engine instead of starting with the $10 and $20 items

Originally Posted by BlackSmoker

OK the injection pump has 130000KM on it pretty new I think concidering my 6.9 in my Ford gave up at 300000 and 600000KM. It has rebuilt injectors and glow plugs this year. It was cold in the morning and is white smoke the light in the dash stays on for only 3 seconds. Once warmed up it runs perfectly fine. I think the glow plugs aren't staying on long enough or the pressure in the pump isn't high enough. I would like to wire a switch in to go manual on the glow plug like I have for my other diesel vehicles. I have 24V glow and would like to keep it 24V. I think the pump pressure is to low because it doesn't have a lot of power and drops off at 3000 RPM. It runs low smoke when warmed up and only runs black when you give it full throttle. I adjusted the timing with the dial indicator to the specs in the Toyota manual. How do you increase the pump pressure? I have had this lack of power for a long time. I though it being an inline 6 it would have tons of torque but it doesn't looked at putting a turbo in or a 5.9 Cummins. The engine just seems guttless it will barely do 100 kmh. it consumes no oil and idles better than any diesel I have owned. Is this right?

A 130000 klms is low klms,so unless you got a faulty pump forget it. Also the pumps are ok cold,when they warm up,a pump expands and loses pressure around the top of the plunger(pump piston). I have a worn one but the wear is so minute I cant get a pic.
The pumps on these wear out around 2-300000 klms. Mine is still good at 217000 and my friends is good at 450000klms with no major work
But some do wear out at 150000 according to my diesel shops.(I cross check info with various diesel shops )


My glowplug stays on for about 3 seconds ,so if yours is too, in cold conditions, maybe that is where you should start.
My understanding is the various temp sensors in the glow plug system adjust the glow period to the engine temp. I know there is one in the manifold and one in the block.
My mechanic says they are not worth fawking around with and rips em out and replaces them with a button.
I kind of like things kept stock to a point.
Another way would be to install a relay with a built in timer that can be adjusted up to about 10 seconds of glow.
You could warm the glow plugs direct from the battery for say ten seconds as a test and see if runs better at start up.

You may have some problems with the pump adjustment. Both my 1HZ will do about 135-140kph flat out but it takes time to get there and I dont make a habit of it. The 75 has 217000km and the 73 has 17000klm on a rebuilt pump and engine.
Both can maintain 120kph on the highway most of the time with no smoke.

I dont think you can adjust the pressure on the pump,,its there or its not. Even leaks can affect the pressure so Im told.

You said you had the injectors done,did that make any difference? I dont know your diesel shop ,but did they set the opening pressure and flow match them?

Looking through the FSM there is a few areas of adjustment to the pump.Are the wires still there or have they been cut?
If they have been cut ,then the screws are probably not in their factory set position.
Finding someone who knows how to set the screws may be the final solution.
Only problem I have with taking pumps near diesel shops is they want to rebuild them before they test them. Most of the parts are $250-$500 each and add labour and the bill quickly reaches $2000 and you dont even get to look inside
Which is why I angle towards the cheap stuff 1st

[bigbrowndog]

Originally Posted by BlackSmoker

OK the injection pump has 130000KM on it pretty new I think concidering my 6.9 in my Ford gave up at 300000 and 600000KM. It has rebuilt injectors and glow plugs this year. It was cold in the morning and is white smoke the light in the dash stays on for only 3 seconds. Once warmed up it runs perfectly fine. I think the glow plugs aren't staying on long enough or the pressure in the pump isn't high enough. I would like to wire a switch in to go manual on the glow plug like I have for my other diesel vehicles. I have 24V glow and would like to keep it 24V. I think the pump pressure is to low because it doesn't have a lot of power and drops off at 3000 RPM. It runs low smoke when warmed up and only runs black when you give it full throttle. I adjusted the timing with the dial indicator to the specs in the Toyota manual. How do you increase the pump pressure? I have had this lack of power for a long time. I though it being an inline 6 it would have tons of torque but it doesn't looked at putting a turbo in or a 5.9 Cummins. The engine just seems guttless it will barely do 100 kmh. it consumes no oil and idles better than any diesel I have owned. Is this right?

From the mileage quoted before I looked at the injection pump I would make sure the accelerator cable was adjusted correctly. The engine of a 1HZ should be revving to around 4,500 to 4,700 RPM at maximum throttle position. If there is excessive black smoke and you say the injectors are OK this can point to advanced timing. I see where you say you have checked the timing so any chance the belt is fairly worn or the valves need adjusting? Have you changed the fuel filter recently and do you use an additive to stop diesel bacteria growing in your tank and blocking the fuel strainer in the tank, perhaps this is more of a problem in the tropics although I understand you get some pretty warm days up there now and then. Also I would check out the fuel lines to make sure one has not been squashed or kinked from rocks or timber. Go right through the fuel supply and throttle position LOL and make sure your handbrake is in the off position before worrying about the injector pump.

[roscoFJ73]

it consumes no oil and idles better than any diesel I have owned. Is this right?

They were designed to drive like a gasser,you wont find a diesel that idles better.They also use less oil than older diesels IMO
You have to remember 3000 is fast for a diesel. The motoring journos use to refer to these as high speed diesels when they 1st come out.
If they are running right they wont leave you with a red face in city traffic or on the open road.



Hi Gazza ,where have you been lately? Im going to have to make a video of the non smoke from my 1HZs

[bigbrowndog]

Originally Posted by roscoFJ73

They were designed to drive like a gasser,you wont find a diesel that idles better.They also use less oil than older diesels IMO
You have to remember 3000 is fast for a diesel. The motoring journos use to refer to these as high speed diesels when they 1st come out.
If they are running right they wont leave you with a red face in city traffic or on the open road.



Hi Gazza ,where have you been lately? Im going to have to make a video of the non smoke from my 1HZs

Cheers Mate, Have got to agree the 1HZ/ 1HDT motors if they are tuned properly should not be making any smoke at all with normal driving. Certainly don"t turn the oil black in 10 minutes like the 2H .LOL.

[Tapage]

Originally Posted by bigbrowndog

Certainly don"t turn the oil black in 10 minutes like the 2H .LOL.

Hey what's up Gazza .. my lovely Tencha keeps the oil in better condition much more time than y Marilu .. even with 2.5 turns to the pump that Tencha had ..

End of hijack !

[BlackSmoker]

Originally Posted by bigbrowndog

From the mileage quoted before I looked at the injection pump I would make sure the accelerator cable was adjusted correctly. The engine of a 1HZ should be revving to around 4,500 to 4,700 RPM at maximum throttle position. If there is excessive black smoke and you say the injectors are OK this can point to advanced timing. I see where you say you have checked the timing so any chance the belt is fairly worn or the valves need adjusting? Have you changed the fuel filter recently and do you use an additive to stop diesel bacteria growing in your tank and blocking the fuel strainer in the tank, perhaps this is more of a problem in the tropics although I understand you get some pretty warm days up there now and then. Also I would check out the fuel lines to make sure one has not been squashed or kinked from rocks or timber. Go right through the fuel supply and throttle position LOL and make sure your handbrake is in the off position before worrying about the injector pump.

I replaced the timing belt this spring the injectors I rebuilt and checked at work and crack at 2100# +/- 12# right in the middle of the specs from the manual. The max throttle speed is within specs the black smoke is only at full throttle. I drain the filter and installed a new one this spring along with air filter. The timing is set to the specs in the manual. Is this Superglow 24V and where is the preheat control box it don't say in the manual do you guys know?

[BlackSmoker]

I checked the resistor and it seems fine. Where do you install the glow plug switch or button in the wiring.

[bigbrowndog]

Originally Posted by BlackSmoker

I replaced the timing belt this spring the injectors I rebuilt and checked at work and crack at 2100# +/- 12# right in the middle of the specs from the manual. The max throttle speed is within specs the black smoke is only at full throttle. I drain the filter and installed a new one this spring along with air filter. The timing is set to the specs in the manual. Is this Superglow 24V and where is the preheat control box it don't say in the manual do you guys know?

From this it seems the engine will rev to maximum revs unladen but will not do the same in top gear [ quote hardly reaching 100 kph] does it reach high revs in indirect gears? I thought it may be not getting full throttle or not enough fuel at high revs.
Back to the glowplugs,,, The glow plug preheating timer is under the dashboard on the passengers side and the glowplug relay is on the left side of the engine bay. You will also need to check the water temperature sensor as the system will not operate if this is not working as it also controls how long the system stays heating for while the motor is running. Really not sure which system you have as there is a 12v and 24v system and I think there is another fixed delay system also. I am not aware what truck you have as I have probably missed that. cheers

[BlackSmoker]

I found the preheat box and tested it for voltage and continuity I have narrowed it down to the coolant temp sender I was told by Toyota to pull the sender out and they can get on if I get the part # off of it. I adjusted the injection pump and it seems to have better throttle response.

[BlackSmoker]

It is a 24V glow. Does the full load injection screw have to be set on the bench or can it be set on running engine I adjusted this and idle screw for 700 - 750 rpm at idle now the is a little black smoke at full throttle. It runs way better. I checked the resistance and got 1.489- 1.456 k/ohms it looks to be in spec? The relays work fine too. I checked the resistance over the glow plugs too. The timer with the temp sender plugged in gives about 2-3 seconds @ 9 deg. cold start. When unplugged 5-6 seconds fires up perfectly then after a few seconds runs rough.