Diesel engine health

[ali_ak]

I only know of Cummins Pakistan in Karachi - good work.

you woudl also require a dial gauge to time the pump correctly to the engine, otherwise its a hit or miss. - mostly miss

There is no one with timing gauge around here xulfiqar sb
I have tried making gauge myself but right now i haven't find the gauge, rest of the apparatus is secondary.
Do you have any tips for pump timing without using the dial gauge ??

[Xulfiqar]

There is no one with timing gauge around here xulfiqar sb
I have tried making gauge myself but right now i haven't find the gauge, rest of the apparatus is secondary.
Do you have any tips for pump timing without using the dial gauge ??

trying to time the pump without a gauge is like trying to draw a line of 1mm width by using a 4 inch paintbrush.

find a machinist and get him to build the holder for you, the gauge is available easily in Pakistan.

[Dongskie]

Please advise remedy @xulfiqar

@Xulfiqar

hello friend, need advise on which part of the vacuum pump of my 2C is the bushing that needs to be fixed to eliminate the rattling noise.

I have checked the roller at the bottom of the pump and it does not have any play or gap in its pin to create the tak-tak-tak noise

Also I cannot find an exploded view

thanks friend!

[Xulfiqar]

Please advise remedy @Xulfiqar

the usual point of failure in these is the roller bearing and the axle the lever pivots on Very bad ones have clearance in the vacuum piston. I have however seen one with a completely broken piston. It made a very bad mess of the engine.

[Dongskie]

Thanks mate, the roller and its pin has no clearance, so I am assuming it could be the piston... I'll see what I can do.

Thank you Xulfiqar!!

the usual point of failure in these is the roller bearing and the axle the lever pivots on Very bad ones have clearance in the vacuum piston. I have however seen one with a completely broken piston. It made a very bad mess of the engine.

[ali_ak]

trying to time the pump without a gauge is like trying to draw a line of 1mm width by using a 4 inch paintbrush.

find a machinist and get him to build the holder for you, the gauge is available easily in Pakistan.

One can use the individual strand

Ok, now i will get it made, just clear one point.

I have to get an extra bolt, pas a THIN ROD through it, then install that bolt in between 4 diesel pipes going from Pump to Engine.

Then measure displacement of THIN ROD using a dial gaue.

Right?

[Xulfiqar]

a bolt wont work, you would need a piece of some roundstock milled down and threaded on the outside and drilled through the middle. you would need to make a sideways lockscrew to lock in the dial gauge and a pin to go through the pump high pressure head and touch the rotor inside.

Make sure everything is top notch quality and good fitting, any sideways slop or play will upset the reading on the dial gauge.

[ali_ak]

a bolt wont work, you would need a piece of some roundstock milled down and threaded on the outside and drilled through the middle. you would need to make a sideways lockscrew to lock in the dial gauge and a pin to go through the pump high pressure head and touch the rotor inside.

Make sure everything is top notch quality and good fitting, any sideways slop or play will upset the reading on the dial gauge.

Ok, i had round stock in mind, but i was focusing on the mechanical working scheme.

Last time you suggested to fix a 'Bolt' on one end of roundstock instead of 'threaded on the outside'

1) So which is better, threading roundstock from outside or using the bolt instead??? I don't think new threading would be accurate to fit inside the pump.

2) what do u mean by 'pin' here, is that some special end point that should touch the rotor? Or is that one piece that touches rotor head at one end and Gauge on the other end?
Is there a thickness limit for pin/rod to be inserted in side the pump?

regards.

[ali_ak]

@xulfiqar sb i am in trouble,

2 days ago i was driving my 1990 Toyota Corolla 2.0D with 2C engine, i raced the car and rpm touched around 4k suddenly engine sounded like it has gone free or something. Engine remained on initially and i parked it, it was very loud at idle and it turned off on its own.

Fearing timing belt has snapped, i fetched the mechanic first, belt was fine, but engine runs with very loud knocking sound like some old khattara car.

Mechanic temporarily adjusted PUMP that reduced the noise and asked me to take it to LAB. LAB guy said nothing wrong with PUMP, either Timing Belt is not in place, or Engine needs overhauling, and asked me to take it to my engine mechanic.

Engine mechanic observed engine needs overhauling, but it was his rush time so asked me to come again for fault diagnosis.

Now normally every one recommends engine overhauling due to mild blow by, i think may be timing belt has skipped a gear, or may be tappet issue.

Please guide me here, what can be cause of very loud engine??
I have yet to take it to mechanic to inspect it, but i dont trust him as he may try to rip me off.
Other mechanic who i took for checking it, i normally use him for brake pad service kind of stuff, so don't want him to open whole paraphernalia for timing belt, though he thinks its not engine trouble but timing belt adjustment.

So at one side guy who is more experience with engines but i dont trust his intent, the other guy who is more friendly but i dont trust his skills

Accessing timing belt is also tough task so i want as much knowledge on the subject before opening the parts.

[Dongskie]

@Xulfiqar my friend, here is a short video clip of my 2C, as you can hear a ratchety sound that comes and go.

http://vid15.photobucket.com/albums/a384/Dongskie/Toyota%20Tamaraw%20FX%201994/2C%20noise%201.mp4_zpswmandv8q.mp4

http://vid15.photobucket.com/albums/a384/Dongskie/Toyota%20Tamaraw%20FX%201994/2C%20noise%202.mp4_zpsu5zk8b7w.mp4

[Xulfiqar]

have you checked the injectors with a stethescope?

[Dongskie]

have you checked the injectors with a stethescope?

No not yet, but is it possibly injector hammering or of some sort of fault?

I can easily have it calibrated for very cheap labor price.

Is the sound also a cause of an overly advanced timing?

[Xulfiqar]

No not yet, but is it possibly injector hammering or of some sort of fault?

I can easily have it calibrated for very cheap labor price.

Is the sound also a cause of an overly advanced timing?

a faulty injector can cause this, its called nailing - like hitting a hammer to a metal object, over advanced timing can also cause this but would render the engine quite hard to start.

[Dongskie]

Hi @xulfiqar

I happen to find time to work on the 2C today and I found out that the timing of the Injection Pump on its mount was way too advanced, the pump was almost touching the intake manifold. I backed it up a little bit and the noise went away.

But the the effect was a little loss in acceleration and it smoked continuously. I recommended a dose of Diesel purge as a last resort before sending it to the Calibration specialist.

[Dongskie]

By the way just in case anyone needs to work on their 2C vacuum pump, here is a disassembled view:

bottom:

top:

internal parts:

[kashif.m1]

Hello all,

Great to finally have a forum where we can talk to people who actually know the inside out of diesel engines.

I am a 24 year old student at LSE. Always wanted to buy an SUV, I have almost finalized the deal for a 2001 Toyota Surf SSR-G with a 1KD engine.

Please if you can give me a list of things that I have to keep in mind for the regular maintenance of this machine for example the Oil change, Diesel Filter, Air Filter, Timing Belt, Brakes, tire pressure etc. Which Oil to use and when to change these.

Me and my father both have no experience in Diesel engines.

Would be great full if you can give me a comprehensive reply which covers all maintenance plans to keep the engine in perfect condition.

Kind Regards
Muhammad

[Xulfiqar]

Hi @Xulfiqar

I happen to find time to work on the 2C today and I found out that the timing of the Injection Pump on its mount was way too advanced, the pump was almost touching the intake manifold. I backed it up a little bit and the noise went away.

But the the effect was a little loss in acceleration and it smoked continuously. I recommended a dose of Diesel purge as a last resort before sending it to the Calibration specialist.

that was what I thought, overadvanced timing, now there is one more item that can cause a "timing" fault. If the injector break pressure is too high then the timing will act retarded as the pump plunger has to travel a bit farther to open the injector.

Remove the injectors and test them, balance them if required and make sure they dont leak. Set the pump with dial guage installed, test engine normal operation, It should be very smooth and easy to start. You might want to test pump internal pressure too, It maybe possible that the vane pump at the front of the injection pump is tired or worn out and needs some assistance from an external unit.

low internal pressure will cause delayed advance function in the injection pump and will cause the engine to run weak.

[ali_ak]

Hello all,

Great to finally have a forum where we can talk to people who actually know the inside out of diesel engines.

I am a 24 year old student at LSE. Always wanted to buy an SUV, I have almost finalized the deal for a 2001 Toyota Surf SSR-G with a 1KD engine.

Please if you can give me a list of things that I have to keep in mind for the regular maintenance of this machine for example the Oil change, Diesel Filter, Air Filter, Timing Belt, Brakes, tire pressure etc. Which Oil to use and when to change these.

Me and my father both have no experience in Diesel engines.

Would be great full if you can give me a comprehensive reply which covers all maintenance plans to keep the engine in perfect condition.

Kind Regards
Muhammad

Hey, spare some time and read this thread from start. You will get a lot of info in first few pages.

Regards.

[ali_ak]

Hi @xulfiqar

I happen to find time to work on the 2C today and I found out that the timing of the Injection Pump on its mount was way too advanced, the pump was almost touching the intake manifold. I backed it up a little bit and the noise went away.

But the the effect was a little loss in acceleration and it smoked continuously. I recommended a dose of Diesel purge as a last resort before sending it to the Calibration specialist.

Hey, which diesel purge you used??

Can you guide me how to use it, and what benefits you noticed?

My timing was also disturbed then Laboratory guy probably set it a little retarded (engine is quiet and looses power on AC).

Regards

[Dongskie]

Hey, which diesel purge you used??

Can you guide me how to use it, and what benefits you noticed?

My timing was also disturbed then Laboratory guy probably set it a little retarded (engine is quiet and looses power on AC).

Regards

I will still get to do it, busy at work but its the Liqui Moly Diesel Purge.