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Author Topic: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi  (Read 1625 times)

Reply #15June 17, 2018, 02:13:24 am

libbydiesel

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #15 on: June 17, 2018, 02:13:24 am »
Nozzles definitely affect timing.  If you don't have access to a pulse adapter, then next best is to make very fine adjustments until it is not too clattery, has easy cold starts, and good power.
Use, abuse or ignorance of any information is at your own risk, confirmation or refutation is your own responsibility, no further 'proof' will be given, take it or leave it, YMMV,terms subject to change without notice, avoid contact with eyes or skin, contents known to cause cancer in California

Reply #16August 27, 2018, 10:46:39 am

Kamikaze

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #16 on: August 27, 2018, 10:46:39 am »
And can I ask you for advice, which way I should do fine tuning? If i am now at 1.54mm should i increase this number or decrease?

I think opening pressure is changing timing and i have stock opening pressure (195Bar), isnt it?
Golf MK2 - 1.9mTDI AFN + AAZ pump (Afn pump internal components)

Reply #17August 27, 2018, 07:43:32 pm

libbydiesel

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #17 on: August 27, 2018, 07:43:32 pm »
I would have to listen to the engine running to offer a decent opinion on whether it sounds overly advanced/retarded.  Maybe post up a sound clip or video? 

1.54 is a very high plunger lift setting.  A good baseline on a 300TDI pump with stock injectors is 1.40mm plunger lift.  At 1.54, it is more likely overly advanced than overly retarded but that's just a guess. 
Use, abuse or ignorance of any information is at your own risk, confirmation or refutation is your own responsibility, no further 'proof' will be given, take it or leave it, YMMV,terms subject to change without notice, avoid contact with eyes or skin, contents known to cause cancer in California

Reply #18September 20, 2018, 03:49:01 pm

Kamikaze

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #18 on: September 20, 2018, 03:49:01 pm »
Sorry about long silence about me, here i am with video of engine sound. Hope its good enough example to hear it. I am little bit sad i cut video too early, after reviving like on video are idle RPM higher for a few seconds. Engine was warm.

https://youtu.be/xQaMWwmwsVo

Its daily car so i am sorry for enthusiast.
Golf MK2 - 1.9mTDI AFN + AAZ pump (Afn pump internal components)

Reply #19September 20, 2018, 07:16:40 pm

libbydiesel

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #19 on: September 20, 2018, 07:16:40 pm »
As far as timing it sounds fairly reasonable.  I don't hear a lot of diesel clatter.

It could just be the recording vs. being there in real life, but I feel like I hear too much tick and hiss.  Almost like a combination of a soft lifter and an intake or vac pump leak or something rubbing or a bad bearing in the alt/water pump.   
Use, abuse or ignorance of any information is at your own risk, confirmation or refutation is your own responsibility, no further 'proof' will be given, take it or leave it, YMMV,terms subject to change without notice, avoid contact with eyes or skin, contents known to cause cancer in California

Reply #20September 21, 2018, 03:22:38 am

Kamikaze

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #20 on: September 21, 2018, 03:22:38 am »
Wow, you are great! I am happy timing is OK. I set pump on bench so maybe when belt was putting up it decrease a little bit from 1,54mm.

And you hear good with ticking like hydraulic lifter but they are almost brand new (maybe 15K Km). I fighted with this sound a lot but dont find what it is doing. Oil pressure is at iddle 1.5bar so good enough. I Give up about this, maybe engine is worn out because engine is from Golf Mk3 old taxi with 600K km. :) I bought it very cheap and it started excelent cold/warm. I told myself "it sound like hydraulic lifter so easy to change" but changing them didn't help. :(

And also alternator bearing is bad, hopefully i will fix it as soon as possible because while glowplugs are ON alternator is squeaking a little bit (like a bird) so for now i have taken out glow plug Relay-60. :)

Golf MK2 - 1.9mTDI AFN + AAZ pump (Afn pump internal components)

Reply #21October 17, 2018, 05:51:46 am

Kamikaze

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #21 on: October 17, 2018, 05:51:46 am »
Libbydiesel i am here again. Sorry for bothering again. O:)
For weekend i am planing some fine tuning and one thing is bothering me and i can't find information so i am looking for informations by this way.

I don't know how call it right in english but let's call it "starting injection quantity". When i am starting up engine it inject too many diesel so it smokes a lot and RPM jump a little bit (~1400rpm for 0.5 second). Smoke fades away in 1-3 seconds. I think it is causing "Starting Injection Quantity" of 2,5Liter engine on 1.9Liter. Can you tell me please how decrease it?

I am thinking it is this little spring in circle, i am right?

Golf MK2 - 1.9mTDI AFN + AAZ pump (Afn pump internal components)

Reply #22October 17, 2018, 08:59:49 pm

ORCoaster

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #22 on: October 17, 2018, 08:59:49 pm »
Kanikaze,  Don't mess with that little spring it is not what you want to adjust.   In your picture look at the lever that is sticking up past the top of the level of the body of the IP.  Now go get the top part that goes on and flip it over.  See the screw like thing that would touch the lever if it was all put together?  That is the Fuel Screw that controls the amount of fuel going into the engine at startup and when under way, driving.

You need to turn that screw out a couple of turns, two half turns.  Maybe more once the car gets running.  Turning it makes a lot of difference in how the car runs, how much power it has, how much fuel is wasted as black smoke. 

When you change the amount of fuel going in at idle you  also have to change the idle setting that is the screw that pushes the lever out a bit farther.  It is a balancing act.  A little more idle screw and a little less fuel screw. 

If the car is not responsive when you are driving it, then the fuel screw goes in like 1/4 turn and the idle gets backed off a bit to lower the RPMs
Now Own 1981 Caddy as the NEW DISTRACTION to all that is around me.  Project Away!

Reply #23October 19, 2018, 10:16:18 am

Kamikaze

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #23 on: October 19, 2018, 10:16:18 am »
Thanks for exhausting answer. Don't worry picrute above is from one IDI/MTDi frankenstain what i did before 200tdi pump. I am not touched that spring. On 200Tdi pump i did just Governor mod.
But if i lower enrichment screw i lost a lot of power/torque, mainly on bottom spectrum of RPMs and LDA "kicks in" is a lot more noticeable and i don't like that - it feels like turbo spool. I hoped for lowering starting quantity without lose power.

I think i will survive then a little smoke on start. So it looks that i have just one thing to do for weekend. I want decrease maximum pressure from 1.3b to 1.2b for less strain in  my K14 turbo. Hope that turbo will survive with car until rust eat whole car. :D


Sorry for my terrible english.  :-[
Golf MK2 - 1.9mTDI AFN + AAZ pump (Afn pump internal components)

Reply #24October 19, 2018, 11:08:32 pm

ORCoaster

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Re: Which IP is better? 2.8TDI or 2.8iDTD / choosed 200tdi
« Reply #24 on: October 19, 2018, 11:08:32 pm »
Not bad English if I can understand the intent or thoughts.  Rust can be dealt with too.  Chemicals that we use when painting bind to the rust and stop the process.  If you look around you will find them.  Not expensive either.  I think I bought a quart bottle for about 13 dollars at the hardware store last year.  Have given half of that away to others doing body work or painting their cars or vans.  They didn't know such a thing existed. 

And dad taught me all about nearly 50 years ago.  Thanks dad.
Now Own 1981 Caddy as the NEW DISTRACTION to all that is around me.  Project Away!

 

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