LJ 77 1992 cold start smoke

[Amir Habib]

Very nice resource to build 2LT fuel injector pump
Unfortunately, I don’t have skills.
But I appreciate you shared that amazing pic

 

[Dprio34]

Amir,
You stated that this LJ drives smoothly all the way to 80mph.
This 2LT or a newer one won’t last very long at those speeds.
Like Rosco said, 2500 RPM is a good range.

I never have mine above 3000 rpm which equates to about 105kmph on flat ground.

Try venting your PCV tube overboard. That will cut down on smoke coming out the tail pipe.

 

[GTSSportCoupe]

Amir,
You stated that this LJ drives smoothly all the way to 80mph.
This 2LT or a newer one won’t last very long at those speeds.
Like Rosco said, 2500 RPM is a good range.

I never have mine above 3000 rpm which equates to about 105kmph on flat ground.

Try venting your PCV tube overboard. That will cut down on smoke coming out the tail pipe.

My EGT's are super low in the higher rpm range, which means it's easier on the motor. By my gauges, the motor is actually very happy cruising at higher rpms (speeds). Low EGTs, low coolant temp, and good oil pressure.

With any diesel, they seem happiest cruising under low load at peak torque rpm, and cruising between peak torque and peak power when under high load. Lower than 2400 on the 2LTE can cause high EGT's and is just at the edge of the turbo being able to spool fully. My recommendation is run the motor between 2400-3800rpm. For normal highway cruising I usually seem to fall around 3000rpm. I get 10l/100km fuel economy at that rpm.

Just my two cents tho. Everyone has their own opinion.

 

[Dprio34]

Nick,
Not challenging anything you said, we are all here to learn and share our experiences.
I keep my 2LT right at 2900rpm in 5th on the flat highway and it produces about 100kmph.
I feel that is the sweet spot for economy. I also am not running an inter cooler. Maybe that would change things.

I am no where near 80mph, ever. My comments where directed at 80mph driving as it relates to Amir’s claim.
My concern and comments were directed at engine longevity at that speed.

I’d love to go faster, but rather not do another engine swap if I can help it.

Regards,
Don

 

[Amir Habib]

You guys are awesome
I was careless & was pushing to 80m/hr like any other USA spec vehicle . I will not do it in future .
Guy who is currently working & resealing the injection pump asked me that I need to replace or rebuilt the radiator soon . I will take any advice

 

[Dprio34]

Amir,
There are several guys here that have imported aluminum radiators from Australia.
(They aren’t cheap, plus shipping).

I recored my brass radiator for about $380. The shop basicalliy brazed my old radiator support bracket to a new brass radiator. Call that what you will.

Make sure you take them your plastic fan shroud. This will ensure the alignment of the bolts integral to the radiator align with the front end of you Cruiser. First time around, the bolts were about 1/8th to a 1/4” off and had to be re-aligned/ brazed.

 

[Amir Habib]

Recieved my LC today from TDI of Indianapolis,
All 4 injector rebuild , injector pump resealed , turbo cleaned , radiator cored

Compressions all 4 cylinder 400 psi

Cold start this evening with zero ( I mean it ) smoke . Only black puff of smoke with sudddn accelerations which is normal for diesels
Today the temp in Indy is 11f
Very happy with my 2 LT
Drives like a dream , gotta remember to keep rpm below 2900—-/> equals ~63-67 miles approx

 

[GTSSportCoupe]

Recieved my LC today from TDI of Indianapolis,
All 4 injector rebuild , injector pump resealed , turbo cleaned , radiator cored

Compressions all 4 cylinder 400 psi

Cold start this evening with zero ( I mean it ) smoke . Only black puff of smoke with sudddn accelerations which is normal for diesels
Today the temp in Indy is 11f
Very happy with my 2 LT
Drives like a dream , gotta remember to keep rpm below 2900—-/> equals ~63-67 miles approx

That is great news!

Honestly, I would not worry about keeping the rpm less than 2900. IDI's are generally high speed diesels compared to their DI cousins. The governor in the injection pump will limit fuel if you rev to high; not to worry.

I've cruised for literally hours at 3000rpm+, while achieving around 10.5l/100km average. I honestly think the engine is happiest there.